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Researcher Information

last modified：2024/07/01

Professor　HAYASHI Hiroaki

Mail Laboratory Website

Faculty, Affiliation

Faculty of Transdisciplinary Sciences, Institute of Philosophy in Interdisciplinary Sciences

College and School Educational Field

Division of Health Sciences, Graduate School of Medical Science
Division of Health Sciences，Graduate School of Medical Science
Department of Radiological Technology，School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences
College of Transdisciplinary Sciences for Innovation

Laboratory

　TEL:076-265-2523

Academic Background

【Academic background(Doctoral/Master's Degree)】
Nagoya University　Master　Graduate School of Engineering　Department of Nuclear Engineering　200503　Completed
Nagoya University　Doctor　Graduate School of Engineering　Materials, Physics and Engineering　200903　Accomplished credits for doctoral program
【Academic background(Bachelor's Degree)】
Nagoya University　School of Engineering　200303
【Degree】
Doctor of Engineering

Career

Nagoya University　Radioisotope research center 　Assistant Professor(2009/04/01-2011/03/30)
Tokushima University　Graduate School of biomedical Sciences　Assistant Professor(2011/04/01-2017/11/30)
Kanazawa University　Collage of Medical, Pharmaceutical and Health Sciences　Associate Professor(2017/12/01-2024/06/30)
Kanazawa University(2024/07/01-)

Year & Month of Birth

1982/02

Academic Society

The Physical Society of japan
Atomic Energy Society of Japan
Japanese Society of Radiological Technology
Japan Society of Medical Physics
Japanese Society of Radiation Safety Management
Medical Imaging and Information Science

Award

○Uchida paper Award(2013/06)
○Uchida paper Award(2013/06)
○Uchida paper Award(2013/06)
○Uchida paper Award(2013/06)
○Uchida paper Award(2013/06)
○CIRMS Ribbon Award(2016/11)
○Certificate of merit(2016/11)
○RPT journal Doi paper award(2017/04)
○RPT most citation award(2018/04)
○RPT most citation award(2018/04)
○Certificate of Merit Award(2019/03)
○Physics of Medical Imaging Student Best Paper Award(2019/02)
○Physics of Medical Imaging Student Best Paper Award(2019/02)
○Certificate of Merit Award(2024/02)
○Best Poster Presentation Award(2023/09)
○Outstanding Presentation Award(2023/05)
○社団法人日本放射線技術学会(2022/05)
○Best poster award(2022/12)
○Best poster award(2022/12)
○Best poster award(2022/12)
○Best poster award(2022/12)

Specialities

Nuclear Physics、Radiation Physics/Radiation Measurements

Speciality Keywords

Radiation Physics, Radiation Measurements, Dosimetry, Development of imaging detector, Photon Counting

Research Themes

Development of New Diagnostic Imaging Detector Using Photon Counting Detector

Direct Dose Measurement of Organ at Risk during RALS Radiotherapy for Cervical Cancer Treatment

Development of dose measurement system by means of OSL dosimeter in the diagnostic X-ray region

Books

  • 　Hiroaki Hayashi, Iniewski Reza et al.　Semiconductor Radiation Detectors, Technology, and Applications　CRC press　2017
  • 　Hiroaki HAYASHI, Natsumi KIMOTO, Takumi ASAKAWA, Akitoshi KATSUMATA　Advances in Medicine and Biology　2019
  • 　Natsumi KIMOTO, Hiroaki HAYASHI, Cheonghae LEE, Tatsuya MAEDA, Daiki Kobayashi, Rina Nishigami, Akitoshi KATSUMATA　Quantitative Analysis Methodology of X-Ray Attenuation for Medical Diagnostic Imaging: Algorithm to Derive Effective Atomic Number and Soft Tissue and Bone Images　Springer　2023
  • 　Natsumi KIMOTO, Hiroaki HAYASHI, Cheonghae LEE, Tatsuya MAEDA, Akitoshi KATSUMATA　Algorithm for Generating Effective Atomic Number, Soft-Tissue, and Bone Images Based on Analysis Using an Energy-Resolving Photon-Counting Detector　Springer　2022
  • 　Hiroaki HAYASHI, Natsumi KIMOTO, Takashi ASAHARA, Takumi ASAKAWA, Cheonghae LEE, Akitoshi KATSUMATA　Photon Counting Detectors for X-ray Imaging: Physics and Applications　Springer　2021/02

Papers

  • 　Exposure dose measurement during diagnostic pediatric X-ray examination using an optically stimulated luminescence (OSL) dosimeter based on precise dose calibration taking into consideration variation of X-ray spectra　Takashi ASAHARA, Hiroaki HAYASHI, Sota GOTO, Emi TOMITA, Natsumi KIMOTO, Yoshiki MIHARA, Takumi ASAKAWA, Yuki KANAZAWA, Akitoshi KATSUMATA, Kosaku HIGASHINO, Kazuta YAMASHITA, Tohru OKAZAKI, Takuya HASHIZUME　Radiation Measurements　119　209-219　2018
  • 　Development of correction for signal-to-noise ratio using a T2* with improved Phase method　Natsuki Ikemitsu, Yuki Kanazawa, Yuki Matsumoto, Hiroaki Hayashi, Toshiaki Sasaki, Mitsuharu Miyoshi and Masafumi Harada　Journal of Computer Assisted Tomography　42　1　117-123　2018
  • 　Pulsation and collimation during fluoroscopy to decrease radiation: a cadaver study　Kazuta Yamashita, Kosaku Higashino, Hiroaki Hayashi, Fumio Hayashi, Yoshihiro Fukui, Koichi Sairyo　JBJS Open Access　2017
  • 　Internal evaluation of impregnation treatment of waterlogged wood; relation between concentration of internal materials and relaxation time using magnetic resonance imaging　Yuki Kanazawa, Tetsuya Yamada, Aki Kido, Koji Fujimoto, Kyoko Takakura, Hiroaki Hayashi, Yasutaka Fushimi, Satoshi Kozawa, Koji Koizumi, Makiko Okuni, Naomi Ueda and Kaori Togashi　Magnetic Resonance Imaging　38　196-201　2017
  • 　Precise material identification method based on a photon counting technique with correction of the beam hardening effect in X-ray spectra　Kimoto Natsumi, Hiroaki Hayashi, Asahara Takashi, Mihara Yoshiki, Yuki Kanazawa, Yamakawa Tsutomu, Yamamoto Shuichiro, Yamasaki Masashi and Okada Masahiro　Applied Radiation and Isotopes　124　16-26　2017

show all

  • 　Necessity of Direct Dose Measurement during Current X-ray Diagnosis, --- Our Approach Using a Small-type OSL Dosimeter ---　Hiroaki Hayashi, Yoshiki Mihara, Yuki Kanazawa, Emi Tomita, Sota Goto, Kazuki Takegami, Tohru Okazaki, Takuya Hashizume and Vergil Estacio Lorenzo Cruz　Medical Research Archives　5　2　1-20　2017
  • 　Entrance surface dose measurements using a small OSL dosimeter with a computed tomography scanner having 320 rows of detectors　Kazuki Takegami, Hiroaki Hayashi, Kenji Yamada, Yoshiki Mihara, Natsumi Kimoto, Yuki Kanazawa, Kousaku Higashino, Kazuta Yamashita, Fumio Hayashi, Tohru Okazaki, Takuya Hashizume and Ikuo Kobayashi　Radiological Physics and Technology　10　1　49-59　2017
  • 　Visualization of magnetic transfer effect in polyethylene glycol impregnated waterlogged wood　Yuki Kanazawa, Tetsuya Yamada, Aki Kido, Koji Fujimoto, Kyoko Takakura, Hiroaki Hayashi, Yasutaka Fushimi, Satoshi Kozawa, Koji Koizumi, Makiko Okuni, Naomi Ueda and Kaori Togashi　Applied Magnetic Resonance　48　2　125-134　2017
  • 　Uncertainty evaluation of fluorescent nuclear track detectors (FNTDs) for neutron dose measurements　Takuya Hashizume, Tohru Okazaki, Toshiya Sanami, Masayuki Hagiwara, Hideaki Monjushiro, Hiroaki Hayashi and Ikuo Kobayashi　Radiation Measurements　2017
  • 　Uncertainty evaluation of absorbed dose measurements by means of small-type OSL dosimeter for radiotherapeutic X-ray region　Masahide Tominaga, Hiroaki Hayashi, Akinori Matsumoto, Natsumi Kimoto, Okazaki Tohru, Hashizume Takuya and Kobayashi Ikuo　Medical Imaging and Information Sciences　33　2　32-37　2016
  • 　Estimation of identification limit for a small-type OSL dosimeter on the medical images by measurement of X-ray spectra　Kazuki Takegami, Hiroaki Hayashi, Hiroki Okino, Natsumi Kimoto, Itsumi Maehata, Yuki Kanazawa, Tohru Okazaki, Takuya Hashizume and Ikuo Kobayashi　Radiological Physics and Technology　9　2　282-292　2016
  • 　Basic characteristics of nanoDot OSL dosimeter for diagnostic X-ray　Tohru Okazaki, Hiroaki Hayashi, Kazuki Takegami, Hiroki Okino, Natsumi Kimoto, Itsumi Maehata and Ikuo Kobayashi　Journal of Radiation Protection and Research　41　3　229-236　2016
  • 　Simple noise reduction for diffusion weighted images　Yuto Konishi, Yuki Kanazawa, Takatoshi Usuda, Yuki Matsumoto, Hiroaki Hayashi, Tsuyoshi Matsuda, Junji Ueno and Masafumi Harada　Radiological Physics and Technology　109　535-538　2016
  • 　On the iteration of coincidence summing correction for determination of gamma-ray intensities　Yosuke Shima, Hiroaki Hayashi, Yasuaki Kojima, Ryouta Jyousyou and Michihiro Shibata　Applied Radiation and Isotopes　109　535-538　2016
  • 　Energy dependence measurement of small-type optically stimulated luminescence (OSL) dosimeter by means of characteristic X-rays induced with general diagnostic X-ray equipment　Kazuki Takegami, Hiroaki Hayashi, Hiroki Okino, Natsumi Kimoto, Itsumi Maehata, Yuki Kanazawa, Tohru Okazaki, Takuya Hashizume and Ikuo Kobayashi　Radiological Physics and Technology　9　1　99-108　2016
  • 　Practical method for determination of air-kerma by using an ionization chamber toward the construction of secondary X-ray field to be used in clinical examination rooms　Itsumi Maehata, Hiroaki Hayashi, Natsumi Kimoto, Kazuki Takegami, Hiroki Okino, Yuki Kanazawa and Masahide Tominaga　Radiological Physics and Technology　9　2　193-201　2016
  • 　Clinical Approach of T1-mapping for Hemodynamic Analysis　Yuki Kanazawa, Hiroaki Hayashi and Masafumi Harada　Medical Imaging and Information Sciences　32　4　xxvi-xxix　2015
  • 　Practical calibration curve of small-type optically stimulated luminescence (OSL) dosimeter for evaluation of entrance-skin dose in the diagnostic X-ray region　Kazuki Takegami, Hiroaki Hayashi, Hiroki Okino, Natsumi Kimoto, Itsumi Maehata, Yuki Kanazawa, Tohru Okazaki and Ikuo Kobayashi　Radiological Physics and Technology　8　2　286-294　2015
  • 　β- Decay of 150Ce to Odd Odd 150Pr　Yasuaki KOJIMA, Kazuto KOSUGA, Yosuke SHIMA, Akihiro TANIGUCHI, Hiroaki Hayashi and Michihiro SHIBATA　Journal of the Physical Society of Japan　84　054201-1-8　2015
  • 　Procedure to measure angular dependences of personal dosimeters by means of diagnostic X-ray equipment　Hiroaki Hayashi, Kazuki Takegami, Hiroki Okino, Kohei Nakagawa, Tohru Okazaki and Ikuo Kobayashi　Medical Imaging and Information Sciences　32　1　8-14　2015
  • 　Determination of full-energy peak efficiency at the center position of a through-hole-type clover detector between 0.05 and 3.2 MeV by source measurements and Monte Carlo simulations　Y Shima, Hiroaki Hayashi, Y Kojima and M Shibata　Applied Radiation and Isotopes　91　97-103　2014
  • 　Half-life Measurement of Excited Levels in Fission Products around Mass Number 150　Y. Kojima, Y. Shima, Hiroaki Hayashi, A. Taniguchi and M. Shibata　Nuclear Data Sheets　120　52-55　2014
  • 　Performance of a total absorption clover detector for Qbeta measurements of neutron-rich nuclei far from the beta-stability line　Hiroaki Hayashi, Michihiro Shibata, Masato Asai, Akihiko Osa, Tukada K Sato, Mitsuo Koizumi, Atsushi Kimura and Masumi Oshima　Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment　747　41-51　2014
  • 　Relative intensities of prompt γ-rays from the 35Cl(n,γ)36Cl reaction with thermal neutrons as secondary γ-ray intensity standards, Applied Radiation and Isotopes　Michihiro Shibata, Akinori Tojo, Itaru Miyazaki, Masataka Furuta, Hiroaki Hayashi, Yasuaki Kojima, Yosuke Shima and Akihiro Taniguchi　Applied Radiation and Isotopes　73　60-67　2013
  • 　Ground-state configuration of the N = 157 nucleus 259No　M. Asai, K. Tsukada, Minoru Sakama, H. Haba, T. Ichikawa, Y. Ishii, A. Toyoshima, T. Ishii, I. Nishinaka, Y. Nagame, Y. Kasamatsu, M. Shibata, Y. Kojima and Hiroaki Hayashi　Physical Review C, Nuclear Physics　87　1　014332-1-6　2013
  • 　Emission probabilities of some intense prompt γ rays of 24Na, 28Al, 52V, 56Mn, 60Co, 142Pr, 187W and 198Au with thermal neutron capture determined using γ rays following β decay　Michihiro Shibata, Itaru Miyazaki, Hiroaki Hayashi, Akinori Tojo, Masataka Furuta, Yasuaki Kojima, Akihiro Taniguchi and Kiyoshi Kawade　Annals of Nuclear Energy　43　106-113　2012
  • 　A spectrometer for lifetime determination by β-γ-γ delayed coincidence technique at KUR-ISOL　Y. Kojima, Hiroaki Hayashi, M. Shibata, S. Endo, K. Shizuma and A. Taniguchi　Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment　659　1　193-197　2011
  • 　Systematics for (n,2n) excitation functions in the neutron energy between 13.4 and 14.9 MeV　Hiroaki Hayashi, Hitoshi Sakane, Michihiro Shibata, Kiyoshi Kawade, Yoshimi Kasugai, Yujiro Ikeda and Toshiyuki Iida　Annals of Nuclear Energy　38　637-646　2010
  • 　Practical Qβ analysis method based on the Fermi-Kurie plot for spectra measured with total absorption BGO detector　Hiroaki Hayashi, Yasuaki Kojima, Michihiro Shibata and Kiyoshi Kawade 　Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment　613　1　79-89　2009
  • 　Qβ-measurements with a total absorption detector composed of through-hole HPGe detector and anti-Compton BGO detector　Hiroaki Hayashi, Michihiro Shibata, Itaru Miyazaki, Osamu Suematsu, Yasuaki Kojima, Kiyoshi Kawade and Akihiro Taniguchi　Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment　606　3　484-489　2009
  • 　Measurements of activation cross section of (n,p) and (n,α) reactions in the energy range of 3.5-5.9 MeV using a deuterium gas target　Masataka Furuta, Toshiaki Shimizu, Hiroaki Hayashi, Itaru Miyazaki, Hiroshi Yamamoto, Michihiro Shibata and Kiyoshi Kawade　Annals of Nuclear Energy　35　9　1652-1662　2008
  • 　Qβ measurements of 158,159Pm,159,161Sm, 160-165Eu, 163Gd and 166Tb using a total absorption BGO detector　Hiroaki Hayashi, Y. Akita, O. Suematsu, M. Shibata, M. Asai, T. K. Sato, S. Ichikawa, I. Nishinaka, Y. Nagame, A. Osa, K. Tsukada, T. Ishii, Y. Kojima and A. Taniguchi　The European Physical Journal A - Hadrons and Nuclei　34　4　363-370　2008
  • 　Precise Intensity Measurements in the 14N(n, γ)15N Reaction as a γ-Ray Intensity Standard up to 11MeV　Itaru Miyazaki, Hitoshi Sakane, Hirokazu Takayama, Masafumi Kasaishi, Akinori Tojo, Masataka FURUTA, Hiroaki Hayashi, Osamu Suematsu, Hiromichi Narasaki, Toshiaki Shimizu, Michihiro Shibata, Kiyoshi Kawade, Akihiro Taniguchi and Hideo Harada　Journal of Nuclear Science and Technology　45　6　481-486　2007
  • 　Direct Radiation Dose Measurement of Rectum during High-Dose-Rate 192Ir Brachytherapy for Cervical Cancer Treatment　Emi Tomita, Hiroaki Hayashi, Takashi Asahara, Kanako Sakuragawa, Yasufumi Shitakubo, Hiroshi Saegusa, Hitoshi Ikushima, Yuki Kanazawa, Sota Goto, Tohru Okazaki, Takuya Hashizume and Vergil LE Cruz　Progress in Nuclear Science and Technology　6　39-42　2019
  • 　Dose evaluation of radiosensitive organs during high-pitch third generation dual-source CT of the chest　Kazuki Takegami, Hiroaki Hayashi, Shogo Tokurei, Ayumi Hashimoto, Shohei Kudomi, Tohru Okazaki, Takuya Hashizume　European Congress of Radiology　2018
  • 　Phantom study using an OSL dosimeter with the aim of accurate measurement of eye lens dose exposure of operator during transfemoral cardiac catheterization using fluoroscopic examination　Takashi Asahara, Hiroaki Hayashi, Emi Tomita, Sota Goto, Natsumi Kimoto, Kenji Yamada, Sumi Yokoyama, Yuki Kanazawa, Tohru Okazaki　European Congress of Radiology (EPOS)　2018
  • 　Evaluation of Dose Response Characteristics of a Small Type Optically Stimulated Luminescence Dosimeter Irradiated with More Than 10 Gy　Tohru Okazaki, Takuya Hashizume, Yoshinori Hashimoto, Masashi Shirakata, Hajime Nakamura, Hirohito Yamazaki, Vergil LE Cruz, Cheng Wei Hsin, Hiroaki Hayashi, Ikuo Kobayashi　Proceedings of the Second International Symposium on Radiation Detectors and Their Uses (ISRD2018)　2018
  • 　Nuclear Overhauser enhancement effect of low B1 power CEST RF in human brain at 3.0 T　Yuki Kanazawa, Masafumi Harada, Mitsuharu Miyoshi, Ikuho Kosaka, Kotaro Baba, Hiroaki Hayashi and Yuki Matsumoto　Proceedings of the 26th Annual Meeting of ISMRM　5117　2018
  • 　T1 dependency of magnetization transfer effect in human brain　Yuki Kanazawa, Toshiaki Sasaki, Hiroaki Hayashi, Kotaro Baba, Ikuho Kosaka, Yuki Mtasumoto, Mitsuharu Miyoshi and Masafumi Harada　Proceedings of the 26th Annual Meeting of ISMRM　3179　2018
  • 　Does the amount of signal change depend on calcium concentration in lipid-rich core plaque?　Yuki Kanazawa, Kotaro Baba, Tosiaki Miyati, Masafumi Harada, Hiroaki Hayashi, Ikuho Kosaka, Mitsuharu Miyoshi, Michael Carl and Yuki Matsumoto　Proceedings of the 26th Annual Meeting of ISMRM　3473　2018
  • 　Identification of breast tissue using the x-ray image measured with an energy-resolved cadmium telluride series detector based on photon-counting technique　Mariko Sasaki, Shuji Koyama, Yoshie Kodera, Reina Suzuki, Ai Nakajima, Hiroko Nishide, Mitsuhiro Mizutani, Megumi Watanabe, Naoko Yoshida, Hiroaki Hayashi, Tsutomu Yamakawa, Shuichiro Yamamoto, Daisuke Hashimoto, Masahiro Okada　Proceedings of SPIE　2018
  • 　Development of energy-resolved photon-counting mammography with a cadmium telluride series detector to reduce radiation exposure and increase contrast-to-noise ratio using the high-energy X-rays　Reina Suzuki, Shuji Koyama, Yoshie Kodera, Ai Nakajima, Mariko Sasaki, Hiroto Kimura, Hiroaki Hayashi, Tsutomu Yamakawa, Shuichiro Yamamoto, Daisuke Hashimoto, Masahiro Okada　Proceedings of SPIE 10718 (IWDM)　2018
  • 　Preliminary study of the portable Optically Stimulated Luminescence dosimetry system for measuring radiation doses more than 100 Gy　T. Okazaki, T. Hashizume, V. LE Cruz, W. Cheng, I. Kobayashi, Y. Hashimoto, M. Shirakawa, H. Nakamura, H. Yamazaki, H. Hayashi　Proceedings of the 15th Annual Meeting of Particle Accelerator Society of Japan　2018
  • 　Reproduction of response functions of a multi-pixel-type energy-resolved photon counting detector while taking into consideration interaction of X-rays, charge sharing and energy resolution　Natsumi Kimoto, Hiroaki Hayashi, Takashi Asahara, Emi Tomita, Sota Goto, Yuki Kanazawa, Shuichiro Yamamoto, Masahiro Okada, Masashi Yamasaki　Proceedings of IEEE(MIC)　2018
  • 　A novel mammographic fusion imaging technique: the first results of tumor tissues detection from resected breast tissues using energy-resolved photon counting detector　Mariko Sasaki, Shuji Koyama, Yoshie Kodera, Reina Suzuki, Hiroto Kimura, Hiroko Nishide, Mitsuhiro Mizutani, Megumi Watanabe, Naoko Yoshida, Hiroaki Hayashi, Natsumi Kimoto, Shuichiro Yamamoto, Daisuke Hashimoto, Masahiro Okada　Proceedings of SPIE Medical Imaging　2019
  • 　Evaluation of Dose Response Characteristics of a Small Type Optically Stimulated Luminescence Dosimeter Irradiated with More Than 10 Gy　Tohru OKAZAKI, Takuya HASHIZUME, Yoshinori HASHIMOTO, Masashi SHIRAKATA, Hajime NAKAMURA, Hirohito YAMAZAKI, Vergil LE CRUZ, Wei Hsin CHENG, Hiroaki HAYASHI, Ikuo KOBAYASHI　JPS Conf. Proc.　011035　2019
  • 　High Dose Measurement using Low Density Aluminum Oxide Element　Ikuo KOBAYASHI, Tohru OKAZAKI, Takuya HASHIZUME, Vergil LE CRUZ, Cheng Wei HSIN, Hiroaki HAYASHI, Nakahiro YASUDA　JPS Conf. Proc.　011034　2019
  • 　Evaluation of gamma-ray disturbing effect on readout of charged particle tracks using fluorescent nuclear track detector (FNTD)　Takuya Hashizume, Tohru Okazaki, Toshiya Sanami, Masayuki Hagiwara, Hideaki Monjushiro, Hiroaki Hayashi, Ikuo Kobayashi　Radiation Measurements　122　22-28　2019
  • 　Applicability of a Practical Calibration for the Small-type OSL Dosimeter for Measuring Doses from Direct X-rays and Penetrating X-rays Affected by Scattered Radiation　Tohru Okazaki, Hiroaki Hayashi, Yoshiki Mihara, Takashi Asahara, Natsumi Kimoto, Yuki Kanazawa, Kosaku Higashino, Kazuta Yamashita, Sumi Yokoyama, Kazuki Takegami, Takuya Hashizume, Vergil LE Cruz and Ikuo Kobayashi　Progress in Nuclear Science and Technology　6　22-25　2019
  • 　Development of Novel Rectum Dosimeter using OSL sheet with the aim of Direct Dose Measurement of Organ Dose during Brachytherapy　Takashi Asahara, Hiroaki Hayashi, Emi Tomita, Kanako Sakuragawa, Hiroshi Saegusa, Yasufumi Shitakubo, Hitoshi Ikushima, Yuki Kanazawa, Yoshiki Mihara, Yoshinori Miyahara, Tohru Okazaki, Takuya Hashizume and Vergil LE Cruz　Progress in Nuclear Science and Technology　6　30-33　2019
  • 　Direct Dose Measurement of Patients during Pediatric Computed Tomography Examination　Hiroaki Hayashi, Emi Tomita, Sota Goto, Natsumi Kimoto, Keiji Tada, Ryosuke Kasai, Yuki Kanazawa, Yoshiki Mihara, Takashi Asahara, Tohru Okazaki, Takuya Hashizume and Vergil LE Cruz　Progress in Nuclear Science and Technology　6　18-21　2019
  • 　Energy and Angular Dependence of the Small-Type OSL Dosimeter in Nuclear Medicine Regions using Monte Carlo Simulation　Vergil Lorenzo E. Cruz, Tohru Okazaki, Hiroaki Hayashi, Yoshiki Mihara, Takashi Asahara, Natsumi Kimoto, Hiroki Okino, Yuki Kanazawa, Takuya Hashizume, Ikuo Kobayashi　Progress in Nuclear Science and Technology　6　34-38　2019
  • 　Evaluation of gamma-ray disturbing effect on readout of charged particle tracks using fluorescent nuclear track detector (FNTD)　Takuya Hashizume, Tohru Okazaki, Toshiya Sanami, Masayuki Hagiwara, Hideaki Monjushiro, Hiroaki Hayashi, Ikuo Kobayashi　Radiation Measurements　122　22-28　2019
  • 　Appropriate echo time selection for quantitative susceptibility mapping　Yuki KANAZAWA, Yuki MATSUMOTO, Masafumi HARADA, Hiroaki HAYASHI, Tsuyoshi MATSUDA, Hideki Otsuka　Radiological Physics and Technology　12　2　185-193　2019
  • 　Thermal sensitive pH imaging using CEST　Yuki Kanazawa, Daiki Chiba, Masafumi Harada, Tosiaki Miyati, Mitsuharu Miyoshi, Hiroaki Hayashi, Yuki Matsumoto, Takashi Abe and Akihiro Haga　Proceedings of the 27th Annual Meeting of ISMRM　3991　2019
  • 　Myelin imaging derived from quantitative parameter mapping　Yuki Kanazawa, Masafumi Harada, Yo Taniguchi, Hiroaki Hayashi, Takashi Abe, Maki Ohtomo, Yuki Matsumoto, Masafumi Ono, Yoshitaka Bito and Akihiro Haga　Proceedings of the 27th Annual Meeting of ISMRM　3313　2019
  • 　Feasibility study of photon counting detector for producing effective atomic number image　Natsumi Kimoto, Hiroaki Hayashi, Takumi Asakawa, Takashi Asahara, Tatsuya Maeda, Yuki Kanazawa, Akitoshi Katsumata, Shuichiro Yamamoto, Masahiro Okada　Proceedings of IEEE(MIC)　2019
  • 　Evaluation of Dose Response Characteristics of a Small Type Optically Stimulated Luminescence Dosimeter Irradiated with More Than 10 Gy　Tohru OKAZAKI, Takuya HASHIZUME, Yoshinori HASHIMOTO, Masashi SHIRAKATA, Hajime NAKAMURA, Hirohito YAMAZAKI, Vergil LE CRUZ, Wei Hsin CHENG, Hiroaki HAYASHI, Ikuo KOBAYASHI 　JPS Conf. Proc.　011035　2019
  • 　High Dose Measurement using Low Density Aluminum Oxide Element　Ikuo KOBAYASHI, Tohru OKAZAKI, Takuya HASHIZUME, Vergil LE CRUZ, Cheng Wei HSIN, Hiroaki HAYASHI, Nakahiro YASUDA　JPS Conf. Proc.　011034　2019
  • 　A Blurring Correction Method Suitable to Analyze Quantitative X-ray Images Derived from Energy-Resolving Photon Counting Detector　Daiki Kobayashi, Hiroaki Hayashi, Rina Nishigami, Tatsuya Maeda, Takashi Asahara, Yuki Kanazawa, Akitoshi Katsumata, Natsumi Kimoto, Shuichiro Yamamoto　Physics in Medicine and Biology　2024
  • 　Conversion Map from Quantitative Parameter Mapping to Myelin Water Fraction: Comparison with R1·R2* and Myelin Water Fraction in White Matter　Shyun Kitano, Yuki Kanazawa, Masafumi Harada, Yo Taniguchi, Hiroaki Hayashi, Yuki Matsumoto, Kosuke Ito, Yoshitaka Bito, Akihiro Haga　Magnetic Resonance Materials in Physics, Biology and Medicine　2024
  • 　Differences of white matter structure for diffusion kurtosis imaging using voxel-based morphometry and connectivity analysis　Yuki Kanazawa, Natsuki Ikemitsu, Yuki Kinjyo, Masafumi Harada, Hiroaki Hayashi, Yo Taniguchi, Kosuke Ito, Yoshitaka Bito, Yuki Matsumoto, Akihiro Haga　BJR Open　6　1　1-7　2024
  • 　Determination of Alzheimer's disease based on morphology and atrophy using machine learning combined with automated segmentation　Natsuki Ikemitsu, Yuki Kanazawa, Akihiro Haga, Hiroaki Hayashi, Yuki Matsumoto, and Masafumi Harada　Acta Radiologica　1-8　2024
  • 　Simplified assessment for chemical exchanged saturation transfer (CEST) imaging: local offset frequency and CEST effect 　Daiki Chiba, Yuki Kanazawa, Tosiaki Miyati, Masafumi Harada, Mitsuharu Miyoshi, Hiroaki Hayashi, Akihiro Haga　Radiological Physics and Technology　17　93-102　2024
  • 　Performance of elastic X-ray shield made by embedding Bi2O3 particles in porous polyurethane　Tatsuya MAEDA, Hiroaki HAYASHI, Miku ANDO, Daiki KOBAYASHI, Rina NISHIGAMI, Takashi ASAHARA, Sota GOTO, Cheonghae LEE, Kazuta YAMASHITA, Kosaku HIGASHINO, Takeshi KONISHI, Shuichi MURAKAMI, Motochika MAKI　Medical Physics　1-13　2023
  • 　Radiation exposure doses to the surgical team during hip surgery is significantly higher during lateral imaging than posteroanterior imaging: a cadaveric simulation study　Yasuaki Tamaki, Kazuta Yamashita, Daiki Nakajima,Yasuyuki Omichi, Yoshinori Takahashi, Michihiro Takai, Shunsuke Tamaki, Tomohiro Goto, Hiroaki Hayashi, Kosaku Higashino, Yoshihiro Tsuruo, Koichi Sairyo　Journal of Occupational Medicine and Toxicology　18　27　2023
  • 　A cadaveric simulation study of radiation exposure to the surgical team during fluoroscopic spinal surgery: How much are we exposed?　Kazuta YAMASHITA, Yasuaki TAMAKI, Daiki NAKAJIMA, Yasuyuki OMICHI, Yoshinori TAKAHASHI, Michihiro TAKAI, Tomohiro GOTO, Hiroaki HAYASHI, Kosaku HIGASHINO, Yoshihiro TSURUNO, Koichi SAIRYO　Spine Surgery and Related Research　7　341-349　2023
  • 　A wearable active-type X-ray dosimeter having novel functions to derive both incident direction and absolute exposure dose　Takashi ASAHARA, Hiroaki HAYASHI, Tatsuya MAEDA, Sota GOTO, Daiki KOBAYASHI, Rina NISHIGAMI, Cheonghae LEE, Miku ANDO, Yuki KANAZAWA, Satoshi IMAJO, Kazuta YAMASHITA, Kosaku HIGASHINO　Radiation Physics and Chemistry　2023
  • 　Signal-stabilized Al2O3:C-OSL dosimeter "checking chip" for correcting OSL reader sensitivity variation　Sota GOTO, Hiroaki HAYASHI, Hidetoshi YAMAGUCHI, Ryuji AKINO, Morihito SHIMIZU　Radiation Measurements　160　106893　2023
  • 　A cadaveric simulation study of radiation exposure to the surgical team during fluoroscopic spinal surgery: How much are we exposed?　Kazuta YAMASHITA, Yasuaki TAMAKI, Daiki NAKAJIMA, Yasuyuki OMICHI, Yoshinori TAKAHASHI, Michihiro TAKAI, Tomohiro GOTO, Hiroaki HAYASHI, Kosaku HIGASHINO, Yoshihiro TSURUNO, Koichi SAIRYO　Spine Surgery and Related Research　2022
  • 　Thyroid dose reduction shield with the generation of less artifacts used for fast chest CT examination　Kazuki TAKEGAMI, Hiroaki HAYASHI, Tatsuya MAEDA, Cheonghae LEE, Rina NISHIGAMI, Takashi ASAHARA, Sota GOTO, Daiki KOBAYASHI, Miku ANDO, Yuki KANAZAWA, Kazuta YAMASHITA, Kosaku HIGASHINO, Shuichi MURAKAMI, Takeshi KONISHI, Motochika MAKI　Radiation Physics and Chemistry　203　110635　2023
  • 　Myelin-weighted imaging derived from quantitative parameter mapping　Yuki Kanazawa, Masafumi Harada, Yo Taniguchi, Hiroaki Hayashi, Takeshi Abe, Maki Otomo, Yuki Matsumoto, Masaharu Ono, Yoshitaka Bito, Akihiro Haga　European Journal of Radiology　156　110525　2022
  • 　Author Correction: Direct measurement of radiation exposure dose to individual organs during diagnostic computed tomography examination　Kazuta Yamashita, Kosaku Higashino, Hiroaki Hayashi, Kazuki Takegami, Fumio Hayashi, Yoshihiro Tsuruo, Koichi Sairyo　Scientific Report　12　5035　2022
  • 　Experimental study of X-ray dose reduction factor when using various size bismuth and lead particles　Tatsuya Maeda, Hiroaki Hayashi, Cheonghae Lee, Miku Ando, Kazuki Takegami, Natsumi Kimoto, Takeshi Konishi, Shuichi Murakami, Motochika Maki, Kazuta Yamashita, Kosaku Higashino　Radiation Physics and Chemistry　195　110049　11 pages　2022
  • 　Influence of distant scatterer on air kerma measurement in the evaluation of diagnostic X-rays using Monte Carlo simulation　Masahide Tominaga, Yukari Nagayasu, Motoharu Sasaki, Takuya Furuta, Hiroaki Hayashi, Masataka Oita, Yuichi Nishiyama, Akihiro Haga　Radiological Physics and Technology　14　381-389　2021
  • 　A novel algorithm for extracting soft-tissue and bone images measured using a photon-counting type X-ray imaging detector with the help of effective atomic number analysis　Natsumi KIMOTO, Hiroaki HAYASHI, Cheonghae LEE, Tatsuya MAEDA, Miku ANDO, Yuki KANAZAWA, Akitoshi KATSUMATA, Shuichiro YAMAMOTO, Masahiro OKADA　Applied Radiation and Isotopes　176　109822　12 pages　2021
  • 　Direct measurement of radiation exposure dose to individual organs during diagnostic computed tomography examination: A cadaveric study　Kazuta Yamashita, Kosaku Higashino, Hiroaki Hayashi, Kazuki Takegami, Fumio Hayashi, Yoshihiro Tsuruo, Koichi Sairyo 　Scientific Report　11　1　5435　2021/03
  • 　Effective atomic number image determination with an energy-resolving photon-counting detector using polychromatic X-ray attenuation by correcting for the beam hardening effect and detector response　Natsumi Kimoto, Hiroaki Hayashi, Takumi Asakawa, Cheonghae Lee, Takashi Asahara, Tatsuya Maeda, Sota Goto, Yuki Kanazawa, Akitoshi Katsumata, Shuichiro Yamamoto, Masahiro Okada　Applied Radiation and Isotopes　170　109617　2021/03
  • 　A disposable OSL dosimeter for in-vivo measurement of rectum dose during brachytherapy　Hiroaki HAYASHI, Natsumi KIMOTO, Tatsuya MAEDA, Emi TOMITA, Takashi ASAHARA, Sota GOTO, Yuki KANAZAWA, Yasufumi SHITAKUBO, Kanako SAKURAGAWA, Hitoshi IKUSHIMA, Tohru OKAZAKI, Takuya HASHIZUME　Medical Physics　Accepted　2021
  • 　Evaluation of calibration factor of OSLD toward eye lens exposure dose measurement of medical staff during IVR　Takashi ASAHARA, Hiroaki HAYASHI, Sota GOTO, Natsumi KIMOTO, Kazuki TAKEGAMI, Tatsuya MAEDA, Yuki KANAZAWA, Tohru OKAZAKI, Takuya HASHIZUME　Journal of Applied Clinical Medical Physics　21　11　263-271　2020
  • 　Quantitative analysis of vibration waves based on Fourier transform in magnetic resonance elastography　Ikuho KOSAKA, Yuki KANAZAWA, Kotaro BABA, Hiroaki HAYASHI, Masafumi HARADA　Radiological Physics and Technology　13　268-275　2020
  • 　An idea to reduce angular dependence of dosimeter having a disk-shaped detection region, Radiation Measurements　Sota GOTO, Hiroaki HAYASHI, Takashi ASAHARA, Natsumi KIMOTO, Emi TOMITA, Kazuki TAKEGAMI, Takumi ASAKAWA, Yuki KANAZAWA, Tohru OKAZAKI, Takuya HASHIZUME　Radiation Measurements　137　106323　2020

Conference Presentations

  • Evaluation of accuracy for the portable-type reading device of the small-size OSL dosimeter(2018/04)
  • Doses caused by overranging effect: Radiosensitive organs dose measurement using a small-type OSL dosimeter during high pitch dual-source CT for chest scan(2018/04)
  • Proposal of Accurate Calibration for Measuring Eye Lens Dose of the Operator during Transfemoral Cardiac Catheterization with Fluoroscopic System Using an OSL dosimeter(2018/04)
  • Rectum Dose Measurements Using Novel Dosimetric System During High-Dose-Rate 192Ir Brachytherapy Treatment of Cervical Cancer(2018/04)
  • Potentiality of Effective Atomic Number Image Based on Photon Counting Technique for Achieving Proper Diagnosis Using Plain X-ray(conference：第74回日本放射線技術学会総会学術大会(Next Generation Session & 一般口頭発表))(2018/04)

show all

  • Spontaneous fission measurements for neutron-rich Fm nuclei produced with an 254Es target(conference：annual meeting of the Japan Society of Nuclear and Radiochemical Sciences)(2018/09)
  • Construction of voxel-based morphometry of R1 and R2* derived from quantitative parameter mapping(2018/09)
  • Actual Surface Dose Evaluation outside Scan Area during Dual Source CT Scanning with Low Tube Voltage : A Phantom Study to Optimize Scan Parameters(2019/04)
  • Actual Dose Measurement of Assistants while Positioning Patients during Pediatric X-ray Examination Using a Small-type Optically Stimulated Luminescence Dosimeter(2019/04)
  • An experiment toward proposing a way to reduce eye lens exposure dose using small-type OSL dosimeter during neonatal cardiac CT examination(2019/04)
  • Monte-Carlo Simulation of Photon Counting Detector towards Production of Effective Atomic Number Images Using Continuous X-rays(2019/04)
  • Trial production and evaluation of characteristics of novel-shaped optically stimulated luminescence dosimeter having lower angular dependence(2019/04)
  • Preliminary study for eye lens dose evaluation of the medical staff during interventional fluoroscopy using Optically Stimulated Luminescence dosimeters(conference：51st Annual meeting of Taiwan Society of Radiation Technology)(2018/05)
  • 評估患者狀況的差異對小兒電腦斷層掃描(CT)檢查期間使用小型光刺激發光(OSL)劑量計(nanoDot)做直接劑量測量之影響(conference：51st Annual meeting of Taiwan Society of Radiation Technology)(2018/05)
  • Nuclear Overhauser enhancement effect of low B1 power CEST RF in human brain at 3.0 T, International Society for Magnetic Resonance in Medicine (ISMRM) 26th Annual Meeting(conference： International Society for Magnetic Resonance in Medicine (ISMRM) 26th Annual Meeting)(2018/06)
  • T1 dependency of magnetization transfer effect in human brain(conference：International Society for Magnetic Resonance in Medicine (ISMRM) 26th Annual Meeting)(2018/06)
  • Does the amount of signal change depend on calcium concentration in lipid-rich core plaque?(conference：International Society for Magnetic Resonance in Medicine (ISMRM) 26th Annual Meeting)(2018/06)
  • Radiation Dose to the Lens of the Eye of Interventional Cardiologists and the Effect of Protectors on Dose Reduction(conference：5th Asian and Oceanic IRPA Regional Congress on Radiation Protection (AOARP5))(2018/05)
  • Proper Calibration Factor of Small Type OSL Dosimeter for Evaluating Eye Lens Dose of Operators during X-ray Fluoroscopic Procedure(conference：5th Asian and Oceanic IRPA Regional Congress on Radiation Protection (AOARP5))(2018/05)
  • Simulation of alpha-ray track images on fluorescence nuclear track detectors using Monte Carlo code(conference：5th Asian and Oceanic IRPA Regional Congress on Radiation Protection (AOARP5))(2018/05)
  • Radiation dose measurement in pediatric CT examination using nanoDot dosimeters, a small type Optically Stimulated Luminescence (OSL) dosimeter(conference：5th Asian and Oceanic IRPA Regional Congress on Radiation Protection (AOARP5))(2018/05)
  • Development of energy-resolved photon-counting mammography with a cadmium telluride series detector to reduce radiation exposure and increase contrast-to-noise ratio using the high-energy X-rays(conference：14th International Workshop on Breast Imaging (IWBI))(2018/07)
  • Identification of breast tissue using the X-ray image measured with an energy-resolved cadmium telluride series detector based on photon-counting technique(conference：14th International Workshop on Breast Imaging (IWBI))(2018/07)
  • First Trial of Actual Dose Measurement of Organ at Risk During Brachytherapy for Cervical Cancer in Tokushima University Hospital(conference：Second International Seminar and Workshop on Technological Competency as Caring in the Health Science)(2018/08)
  • Reproduction of response functions of a multi-pixel-type energy-resolved photon counting detector while taking into consideration interaction of X-rays, charge sharing and energy resolution(conference：25th International Symposium on Room-Temperature Semiconductor X-ray & Gamma-ray Detectors, IEEE(MIC))(2018/11)
  • The basic characteristics of a prototype eye lens dosimeter using thermoluminescence detector(conference：18th Asia-Oceania Congress of Medical Physics (AOCMP))(2018/11)
  • Evaluating the energy dependence of the small type Optically Stimulated Luminescence (OSL) “nanoDot” dosimeters in the energy region of diagnostic X-rays by using Monte Carlo Simulation(conference：18th Asia-Oceania Congress of Medical Physics (AOCMP))(2018/11)
  • Trial study for development of a novel-formed dosimeter having lower angular dependence(conference：18th Asia-Oceania Congress of Medical Physics (AOCMP))(2018/11)
  • Multiple readouts of response of OSL dosimeter to achieve highly accurate measurement of radiation dose during diagnostic X-ray examination(conference：34th annual meeting of JCRT)(2018/09)
  • Availability of the high pitch dual source CT for the chest examination: actual surface dose measurement using an OSL dosimeter to optimize irradiation parameters(conference：Radiological Society of North America (RSNA))(2018/11)
  • A. Ue, Y. Miyahara, E. Tomita, H. Hayashi, M. Tokudo, Y. Imoto, Y. Hieda, Y. Tamaki, T. Inomata, H. Kitagaki, Y. Yamamoto, T. Okazaki(conference：Radiological Society of North America (RSNA))(2018/11)
  • Quantitative evaluation of local offset frequency for CEST imaging(conference：The 3rd Annual Scientific Meeting of the Japanese Chapter of ISMRM)(2018/12)
  • A novel mammographic fusion imaging technique: the first results of tumor tissues detection from resected breast tissues using energy-resolved photon counting detector(conference：SPIE Medical Imaging)(2019/02)
  • A novel mammographic substance discrimination technique with fusion imaging: Initial results of detection of breast cancer from resected breast tissues by energy-resolved photon counting detector(conference：European Congress of Radiology)(2019/03)
  • Effective atomic number image produced with energy-resolved photon counting detector toward the development of next-generation plain X-ray diagnosis(conference：European Congress of Radiology)(2019/03)
  • Evaluation of dose to risk organ during brachytherapy for cervical cancer using a novel passive rectum dosimeter(conference：European Congress of Radiology)(2019/03)
  • Where do the scattering X-rays to eye lens exposure come from during neonatal cardiac CT examination?(conference：European Congress of Radiology)(2019/03)
  • Actual dose measurements of assistant during pediatric X-ray examination with a precisely calibrated optically stimulated luminescence dosimeter(conference：European Congress of Radiology)(2019/03)
  • Tohru Okazaki, Hiroaki Hayashi, Sota Goto, Takashi Asahara, Emi Tomita, Yuki Kanazawa, Takuya Hashizume, Vergil Cruz, Cheng Wei Hsin(conference：European Congress of Radiology)(2019/05)
  • Thermal sensitive pH imaging using CEST(conference：ISMRM 27th Annual Meeting)(2019/05)
  • Myelin imaging derived from quantitative parameter mapping(conference：ISMRM 27th Annual Meeting)(2019/05)
  • Phantom study using an OSL dosimeter with the aim of accurate measurement of eye lens dose exposure of operator during transfemoral cardiac catheterization using fluoroscopic examination(conference：European Congress of Radiology)(2018/03)
  • Dose evaluation of radiosensitive organs during high-pitch third generation dual-source CT of the chest(conference：European Congress of Radiology)(2018/03)
  • Gamma ray effect on reading alpha particle tracks using fluorescent nuclear track detectors (FNTDs) ～Difference with track angles～(conference：Internatinal Symposium on Radiation Detectors and Their Users)(2018/03)
  • Evaluation of Dose Response Characteristics of a Small Type Optically Stimulated Luminescence Dosimeter Irradiated with More Than 10 Gy(conference：Internatinal Symposium on Radiation Detectors and Their Users)(2018/01)
  • Response functions of multi-pixel type CdTe detector, --- toward development of precise material identification in diagnosti x-ray images by means of photon counting ---(conference：SPIE Medical Imaging)(2017/03)
  • Development of a novel method based on a photon counting technique with the aim of precise material identification in clinical X-ray diagnosis(conference：SPIE Medical Imaging)(2017/03)
  • Basic study for internal dose evaluation during CT examination by means of small-type OSL dosimeter(conference：European Congress of Radiology)(2017/03)
  • An improvement of signal-to-noise ratio for phase image(conference：European Congress of Radiology)(2017/03)
  • T1 dependence of magnetization transfer effect for macromolecules(conference：European Congress of Radiology)(2017/03)
  • Preliminary study for exposure dose measurement of people assisting during a pediatric X-ray procedure by means of a small-type OSL dosimeter(conference：European Congress of Radiology)(2017/03)
  • Phase Correction for Quantitative Susceptibility Mapping (QSM) using T2* Mapping(conference：The 5th International Congress on Magnetic Resonance Imaging)(2017/03)
  • 小型光刺激發光劑量計測量診斷範圍之輻射劑量的可能性評估(conference：The 50th Annual Meeting of TWSRT and the International Conference of Medical Imaging)(2017/03)
  • Use of detector holding device to minimize radiation exposure to the operator(conference：The 21st International Congress of Dental and Maxillo-Facial Radiology)(2017/04)
  • Reliability of the dose calibration of small-type Optically Stimulated Luminescence dosimeter for diagnostic X-rays(conference：The 50th Annual Meeting of TWSRT and the International Conference of Medical Imaging)(2017/03)
  • Baseline of Chemical Exchange Saturation Transfer Imaging for Brain(conference：ISMRM 25th Annual Meeting)(2017/04)
  • Dura Mater imaging with UTE T2* Mapping(conference：ISMRM 25th Annual Meeting)(2017/04)
  • Development of Novel Rectum Dosimeter using OSL sheet with the aim of Direct Dose Measurement of Organ Dose during Brachytherapy(conference：International Symposium On Radiation Safety and Detection Technology (ISORD-9))(2017/07)
  • Direct Dose Measurement of Patients during Pediatric Computed Tomography Examination(conference：International Symposium On Radiation Safety and Detection Technology (ISORD-9))(2017/07)
  • Applicability of Practical Calibration of a Small-type OSL Dosimeter For Measuring the Exposure Doses Effected by Scattered and Penetrating X-rays(conference：International Symposium On Radiation Safety and Detection Technology (ISORD-9))(2017/07)
  • Direct Radiation Dose Measurement of Rectum during High-Dose-Rate 192Ir Brachytherapy for Cervical Cancer Treatment(conference：International Symposium On Radiation Safety and Detection Technology (ISORD-9))(2017/07)
  • Energy and Angular Dependence of the small type OSL Dosimeter in Diagnostic and Nuclear Medicine Regions using Monte Carlo Simulation(conference：International Symposium On Radiation Safety and Detection Technology (ISORD-9))(2017/07)
  • Gamma-ray effect for track counting of fluorescent nuclear detectors(conference：27th International Conference on Nuclear Tracks and Radiation Measurements27th International Conference on Nuclear Tracks and Radiation Measurements)(2017/08)
  • Novel material identification method using three energy bins of a photon counting detector taking into consideration Z-dependent beam hardening effect correction with the aim of producing an X-ray image with information of effective atomic number(conference：2017 IEEE Nuclear Science Symposium)(2017/10)
  • Direct measurement of exposure doses using a small-type OSL dosimeters during pediatric CT examination(conference：The 3rd International Conference on Radiological Science and Technology)(2017/10)
  • Development of a Novel Rectum Dosimeter for Evaluation of Organ Dose Exposure during Brachytherapy using High-Dose-Rate Ir-192(conference：The 3rd International Conference on Radiological Science and Technology)(2017/10)
  • Precise calibration factor of small-type OSL dosimeter with the aim toward analysis of exposure doses caused by scattering X-ray in the diagnostic region(conference：The 3rd International Conference on Radiological Science and Technology)(2017/10)
  • Evaluating the Influence of the Small-type Optically Stimulated Luminescence (OSL) Dosimeter on CT Images for Radiation Dose Measurement of Patient(conference：The 3rd International Conference on Radiological Science and Technology)(2017/10)
  • Development of a new in-vivo measurement system by means of OSL dosimeters during brachytherapy for cervical cancer(conference：RSNA2017 (Radiological Society of North America))(2017/11)
  • Potential of photon counting technique for next-generation type X-ray diagnostic system: To provide new medical image concerning effective atomic numbers using plain X-ray(conference：RSNA2017 (Radiological Society of North America))(2017/11)
  • Can OSL dosimetry measurement be applied to MR imaging during MR-LINAC treatment?(conference：RSNA2017 (Radiological Society of North America))(2017/11)
  • Which is More Important for Quantitative Susceptibility Mapping? SNR of Phase vs Spin Dephasing.(conference：Radiological Society of North America (RSNA))(2017/11)
  • Practical phantom study using small-type OSL dosimeter toward direct dose measurement during pediatric CT examination(conference：AOCMP-AMPICON 2017)(2017/11)
  • Energy dependence of nanoDot OSL dosimeters to low energy X-rays using Monte-Carlo simulation code EGS5(conference：AOCMP-AMPICON 2017)(2017/11)
  • Universal calibration curve for a small-type OSL dosimeter to be used for direct dose measurements of direct, scattered and penetrating X-rays in the diagnostic region(conference：Radiological Society of North America (RSNA))(2017/11)
  • Study of fluorescence nuclear track detectors for practical use as personal neutron dosimeters －Evaluation of interceptive effect of gamma rays on reading alpha particle tracks－(2017/10)
  • Exposure dose measurement outside of the scan range by high pitch dual source CT(2017/12)
  • Spontaneous fission studies for neutron-rich Fm and Lr isotopes(conference：6th international conference on the chemistry and physics of the transactinide elements)(2019/08)
  • Novel Disk-Shaped OSL Dosimeter Having Smaller Angular Dependence(conference：19th International Conference on Solid State Dosimetry (SSD19))(2019/09)
  • Development of a Clinically Applicable Rectum Dosimeter for Brachytherapy using an Optically Stimulated Luminescence Dosimeter(conference：19th International Conference on Solid State Dosimetry (SSD19))(2019/09)
  • Practical calibration curve for a small-type OSL dosimeter to measure exposure dose of patients during medical X-ray diagnosis(conference：19th International Conference on Solid State Dosimetry (SSD19))(2019/09)
  • Precise dose calibration method of OSL dosimeter with help of X-ray spectra toward exposure dose evaluation of eye lens(conference：19th International Conference on Solid State Dosimetry (SSD19))(2019/09)
  • Measurements of neutron dose equivalents during BNCT using fluorescent nuclear track detectors(conference：19th International Conference on Solid State Dosimetry (SSD19))(2019/09)
  • Feasibility study of photon counting detector for producing effective atomic number image(conference：IEEE Nuclear Science Symposium and Medical Imaging Conference)(2019/10)
  • Importance of considering the response function of photon counting detectors with the goal of precise material identification(conference：IEEE Nuclear Science Symposium and Medical Imaging Conference)(2019/10)
  • Photon counting technique: How to analyze a novel quantitative image?(conference：RSNA2019)(2019/12)
  • Dose calibration factor of an OSL dosimeter during CT examination to measure exposure dose of patients taking into consideration proper X-ray quality(conference：ECR2020)(2020/03)
  • Multi-components analysis of brain using ultrashort echo time magnetic resonance imaging(conference：ECR2020)(2020/03)
  • Multicomponent T1 Relaxometry Analysis using Quantitative Parameter Mapping Magnetic Resonance Imaging(conference：ECR2020)(2020/03)
  • Optimizing the imaging conditions of energy resolved photoncounting mammography by simulating the characteristics of an actual detector(conference：ECR2020)(2020/03)
  • Chemical Exchange Saturation Transfer Imaging for Atherosclerotic Plaques(conference：ISMRM2020)(2020/04)
  • Comparison of estimation parameters of relaxation rate and susceptibility for myelin content with quantitative parameter mapping(2019/09)
  • 高エネルギー光子線場におけるOSL線量計を用いた吸収線量計測の不確かさの評価(2020/04)
  • Reading Uncertainty of Optically Stimulated Luminescence Dosimeter with High Energy Photon Beam(2020/04)
  • Spatially smoothing processing of quantitative values in voxel-based morphometry (VBM) analysis(2020/04)
  • Phantom study using novel shaped OSL dosimeters having smaller angular dependence toward actual dose measurement during clinical X-ray examination(2020/04)
  • Sensitivity Analysis of Parameters When Calculating the Shielding Rate Using Monte-Carlo Simulation and Experimentation(2020/04)
  • Dual-type active dosimeter having a novel algorithm to identify incident angles of X-rays(conference：第76回日本放射線技術学会総会学術大会)(2020/04)
  • A Novel Algorithm for Material Identification Based on a Photon Counting Technique -Toward the Development of a Quantitative Plain X-ray Diagnosis Using an Effective Atomic Number Image-(conference：第76回日本放射線技術学会総会学術大会)(2020/04)
  • Discrimination of non-metal dental material using photon counting CT toward identifying human remains(conference：The 3rd International Conference on Radiological Physics and Technology (ICRPT))(2024/04)
  • Convenient procedure to determine a dose reduction factor of the collar-type thyroid shield used for the chest CT examination(conference：The 3rd International Conference on Radiological Physics and Technology (ICRPT))(2024/04)
  • Suitability of High Tube Voltage Imaging for General Radiography When Using Energy Resolving Photon Counting Detectors(conference：The 3rd International Conference on Radiological Physics and Technology (ICRPT))(2024/04)
  • A correction method for image blurring to derive accurate quantitative material information using an energy resolving photon counting detector(conference：The 3rd International Conference on Radiological Physics and Technology (ICRPT))(2024/04)
  • A novel analysis method to determine surface radiation dose taking into account the incident angle of X-rays during a helical scanning CT examination(conference：The 3rd International Conference on Radiological Physics and Technology (ICRPT))(2024/04)
  • A novel evaluation procedure of X-ray shielding ability by estimating X-ray incident direction during helical CT examination(conference：The 3rd International Conference on Radiological Physics and Technology (ICRPT))(2024/04)
  • Direct dose measurement method during chest CT examination by taking into consideration the X-ray incident direction(conference：European Congress of Radiology, ECR2024)(2024/02)
  • Applicability of high tube voltage imaging to achieve accurate quantitative images when applying photon counting detectors to general radiography(conference：SPIE Medical Imaging 2024)(2024/02)
  • Will general radiography become more valuable when exploiting the performance of a photon counting detector?(conference：The 109th Scientific Assembly and Annual Meeting of the Radiological Society of North America)(2023/11)
  • How can we establish direct radiation dose measurement during CT examinations?(conference：The 109th Scientific Assembly and Annual Meeting of the Radiological Society of North America)(2023/11)
  • Metabolic Analysis within an Atherosclerotic Plaque Using Chemical Exchange Saturation Transfer Imaging(conference：The 109th Scientific Assembly and Annual Meeting of the Radiological Society of North America)(2023/11)
  • Blurring correction for calculating functional images using an energy resolving photon counting detector(conference：The 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference)(2023/11)
  • Simulation study on functional images to optimize radiographic condition using energy resolving photon counting detector(conference：The 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference)(2023/11)
  • Automatic determination algorithm of intrinsic parameters on response function of energy-resolving photon counting imaging detector(conference：The 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference)(2023/11)
  • Absolute measurement of bone mineral density in general radiography using energy-resolving photon-counting detector(conference：The 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference)(2023/11)
  • Feasibility study of X-ray shielding procedure for reducing thyroid dose caused by overranging effect during CT examination(conference：The 39th Japan Conference of Radiological Technologists（39JCRT）and the 30th East Asia Conference of Radiological Technologists (30EACRT))(2023/09)
  • A pilot study of novel remote audits of radiotherapy beams using Al2O3:C OSL dosimetry system(conference：20th International Conference on Solid State Dosimetry (SSD20))(2023/09)
  • An active-type personal dosimeter having functions to derive both incident direction and absolute dose of scattered X-rays during clinical X-ray examinations(conference：20th International Conference on Solid State Dosimetry (SSD20))(2023/09)
  • Beam quality conversion factor of BeO-OSLD for a high-energy photon beam(conference：20th International Conference on Solid State Dosimetry (SSD20))(2023/09)
  • Exposure Dose Reduction in Medical X-ray Diagnostics for BMD Measurement(conference：20th International Conference on Solid State Dosimetry (SSD20))(2023/09)
  • Evidence of exposure dose reduction outside the scanning region during fast scan chest CT examination through the use of an X-ray shield(conference：20th International Conference on Solid State Dosimetry (SSD20))(2023/09)
  • Myelin Water Atlas Template derived from Quantitative Parameter Mapping(conference：2023 ISMRM & ISMRT Annual Meeting)(2023/06)
  • Evaluation of Biological Metabolic Activity within an Atherosclerotic Plaque using Chemical Exchange Saturation Transfer Imaging(conference：2023 ISMRM & ISMRT Annual Meeting)(2023/06)
  • Diffusion Weighted-Viscosity Imaging for Atherosclerotic Plaques(conference：2023 ISMRM & ISMRT Annual Meeting)(2023/06)
  • Myelin Water Atlas Template derived from Quantitative Parameter Mapping(conference：2023 ISMRM & ISMRT Annual Meeting)(2023/06)
  • Evaluation of Biological Metabolic Activity within an Atherosclerotic Plaque using ChemicalExchange Saturation Transfer Imaging(conference：2023 ISMRM & ISMRT Annual Meeting)(2023/06)
  • Diffusion Weighted-Viscosity Imaging for Atherosclerotic Plaques(conference：Diffusion Weighted-Viscosity Imaging for Atherosclerotic Plaques)(2023/06)
  • A novel function for wearable dosimeters: to determine both incident direction and absolute dose of X-rays during IVR procedure(conference：2nd International Conference on Radiological Physics and Technology (ICRPT))(2023/04)
  • Findings for manufacturing novel X-ray shields having elasticity(conference：2nd International Conference on Radiological Physics and Technology (ICRPT))(2023/04)
  • A correction method for object edge blurring that is effective for quantitative analysis using photon counting imaging(conference：2nd International Conference on Radiological Physics and Technology (ICRPT))(2023/04)
  • Suitability of High-Tube-Voltage Imaging When Using Energy Resolving Photon Counting Detector (ERPCD): Simulation Study(conference：2nd International Conference on Radiological Physics and Technology (ICRPT))(2023/04)
  • Thyroid dose reduction related to the overranging effect by using a novel sponge-type shield during high-pitch chest CT examination(conference：2nd International Conference on Radiological Physics and Technology (ICRPT))(2023/04)
  • Investigation of properties related to BeO-based OSL dosimeter sensitivity in high-energy photon beam(conference：2nd International Conference on Radiological Physics and Technology (ICRPT))(2023/04)
  • Experimental study to develop elastic radiation shields embedded with metal particles(conference：European Congress of Radiology (ECR))(2023/03)
  • Practical procedure to reduce thyroid dose related to the overranging effect during fast chest CT examination using a novel sponge shield with embedded fine bismuth particles(conference：European Congress of Radiology (ECR))(2023/03)
  • A wearable active-type dosimeter having novel functions to derive both incident direction and absolute dose of scattered X-rays during IVR procedures(conference：European Congress of Radiology (ECR))(2023/03)
  • A Novel Method to Reduce Exposure Dose When Performing BMD Measurement Using Diagnostic X-ray Examinations(conference：22nd Asia-Oceania Congress on Medical Physics, AOCMP 2022)(2022/12)
  • The development of a postal dosimetry procedure for high-energy photon beams using OSL dosimeters in Japan(conference：22nd Asia-Oceania Congress on Medical Physics, AOCMP 2022)(2022/12)
  • Variable flip angle T1 mapping without acquiring data for B1 correction(2022/04)
  • Improvement of micro-densitometry method using a sheet which has X-ray shielding ability(2022/04)
  • Bone and soft-tissue image generation method based on one shot X-ray exposure using a photon-counting detector(2022/04)
  • Investigating the appropriate T2* cut-off value for Myelin Water Fraction (MWF)(conference：49th Annual Meeting of JSMRM)(2021/09)
  • Determination of Alzheimer's disease based on morphology and atrophy using machine learning combined with automated segmentation(conference：2022 Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting)(2022/05)
  • Evaluation of Blood Flow and Plaque Vulnerability in Carotid Artery Stenosis Focusing on Morphological and Component Characteristics(conference：2022 Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting)(2022/05)
  • Conversion map from quantitative parameter mapping to myelin water fraction(conference：2022 Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting)(2022/05)
  • Development of self-calibrating B1 correction for three-dimensional variable flip angle T1 mapping(conference：2022 Joint Annual Meeting ISMRM-ESMRMB & ISMRT 31st Annual Meeting)(2022/05)
  • Determination of white matter structure index for voxel based morphometry and connectivity analysis(conference：ECR2022)(2022/03)
  • Development of a B1 correction method without additional scanning VFA T1 map(conference：ECR2022)(2022/03)
  • What Information Can We Derive From In-vivo Rectum Dose Measurement During RALS Irradiation?(conference：RSNA2021)(2021/11)
  • Is it possible to evaluate morphological carotid artery stenosis information using NASCET criteria?(conference：RSNA2021)(2021/11)
  • An idea for preparing the stabilized optically stimulated luminescence (OSL) dosimeters having smaller signal depletion(conference：IEEE(NSS))(2021/10)
  • Bone and soft-tissue images extraction through derivation of effective atomic number image using photon-counting detector(conference：IEEE(MIC))(2021/10)
  • Trial to Fabricate a Radiation Dosimeter Having Functions to Determine Both Incident Angle and Exposure Dose of Scattered X-rays(conference：3rd Technological Competency As Caring In The Health Sciences)(2021/08)
  • Improved Resolution with Reconstructed Pixel Size(2021/04)
  • Precise Energy Calibration Procedure for X-ray Imaging Detector Using Polychromatic X-ray Spectrum(2021/04)
  • Simulation Study to Calculate Shielding Rate for the Development of Three-Dimensional Non-Uniform Shielding Material(2021/04)
  • Beam quality conversion factor and dose linearity of Optically Stimulated Luminescence Dosimeter (OSLD) for high-energy photon beam(2021/04)
  • How can we perform actual dose measurement? Clinically applicable procedures and its impact(conference：RSNA)(2020)

Others

  • 　Novel material identification method using three energy bins of a photon counting detector taking into consideration Z-dependent beam hardening effect correction with the aim of producing an X-ray image with information of effective atomic number　1.Kimoto Natsumi, Hiroaki Hayashi, Asahara Takashi, Tomita Emi, Goto Sota, Mihara Yoshiki, Yuki Kanazawa, Yamakawa Tsutomu, Yamamoto Shuichiro, Yamasaki Masashi, Okada Masahiro and Hashimoto Daisuke　2017 IEEE Nuclear Science Symposium; Medical Imaging Conference, Conference Record 　2017
  • 　Baseline of Chemical Exchange Saturation Transfer Imaging for Brain　Yuki Kanazawa, Masafumi Harada, Mitsuharu Miyoshi, Yuki Matsumoto, Hiroaki Hayashi, Toshiaki Sasaki and Natsuki Ikemitsu　Proceedings of the 25th Annual Meeting of ISMRM　2017
  • 　Dura Mater imaging with UTE T2* Mapping　Yuki Kanazawa, Masafumi Harada, Mitsuharu Miyoshi, Yuki Matsumoto, Hiroaki Hayashi, Toshiaki Sasaki, Natsuki Ikemitsu and Michael Carl 　Proceedings of the 25th Annual Meeting of ISMRM　2017
  • 　Preliminary study for exposure dose measurement of people assisting during a pediatric X-ray procedure by means of a small-type OSL dosimeter　Hiroaki Hayashi, Yoshiki Mihara, Natsumi Kimoto, Takashi Asahara, Kenji Yamada, Yuki Kanazawa, Masafumi Harada, Tohru Okazaki and Takuya Hashizume 　European Congress of Radiology　2017
  • 　Basic study for internal dose evaluation during CT examination by means of small-type OSL dosimeter　Yoshiki Mihara, Hiroaki Hayashi, Kenji Yamada, Yuki Kanazawa, Kousaku Higashino, Kazuta Yamashita, Ryosuke Kasai, Tohru Okazaki and Takuya Hashizume　European Congress of Radiology　2017

show all

  • 　An improvement of signal-to-noise ratio for phase image　Natsuki Ikemitsu, Yuki Kanazawa, Yuki Matsumoto, Hiroaki Hayashi, Takatoshi Usuda, Toshiaki Sasaki, Mitsuharu Miyoshi and Masafumi Harada　European Congress of Radiology 　2017
  • 　 T1 dependence of magnetization transfer effect for macromolecules　Toshiaki Sasaki, Yuki Kanazawa, Yuki Matsumoto, Hiroaki Hayashi, Natsuki Ikemitsu, Takatoshi Usuda, Mitsuharu Miyoshi and Masafumi Harada 　European Congress of Radiology 　2017
  • 　Development of a novel method based on a photon counting technique with the aim of precise material identification in clinical X-ray diagnosis　Natsumi Kimoto, Hiroaki Hayashi, Asahara Takashi, Yuki Kanazawa, Yamakawa Tsutomu, Yamamoto Shuichiro, Yamasaki Masashi and Okada Masahiro　Proceedings of SPIE　2017
  • 　Response functions of multi-pixel-type CdTe detector, --- Toward development of precise material identification on diagnostic X-ray images by means of photon counting ---　9.Hiroaki Hayashi, Asahara Takashi, Kimoto Natsumi, Yuki Kanazawa, Yamakawa Tsutomu, Yamamoto Shuichiro, Yamasaki Masashi and Okada Masahiro 　Proceedings of SPIE　2017
  • 　Simple improvement method of uniformity of MR elastography on liver　10.Yuki Kanazawa, Yuki Matsumoto, Hiroaki Hayashi, Tsuyoshi Matsuda, Munguu Ganbold and Masafumi Harada　Proceedings of the 24th Annual Meeting of ISMRM　2016
  • 　Evaluation of energy dependence of nanoDot optically stimulated luminescence (OSL) dosimeter using characteristic X-ray induced by medical X-ray equipment　Tohru Okazaki, Takuya Hashizume, Hiroaki Hayashi, Kazuki Takegami, Hiroki Okino, Natsumi Kimoto, Itsumi Maehata, Yuki Kanazawa and Kobayashi Ikuo 　European Congress of Radiology 　2016
  • 　Development of leaf electroscope to understand ionization for novice practical training　Hiroaki Hayashi, Natsumi Kimoto, Hiroki Okino, Kazuki Takegami, Itsumi Maehata and Yuki Kanazawa　European Congress of Radiology　2016
  • 　Compact irradiation system for evaluation of basic characteristics of the nanoDot OSL dosimeter toward direct measurement of exposure dose of patients　Hiroki Okino, Hiroaki Hayashi, Kazuki Takegami, Natsumi Kimoto, Itsumi Maehata, Yuki Kanazawa, Tohru Okazaki, Takuya Hashizume and Ikuo Kobayashi 　European Congress of Radiology　2016
  • 　Fabrication and analysis of phantoms providing the equal-image-density for basic experiment of next-generation-type X-ray diagnosis　Natsumi Kimoto, Hiroaki Hayashi, Hiroki Okino, Kazuki Takegami, Itsumi Maehata, Yuki Kanazawa, Tsutomu Yamakawa and Shuichiro Yamamoto　European Congress of Radiology 　2016
  • 　 Proposal of quantitative identification method of a small-type OSL dosimeter: Verification that the dosimeter is not detected in the medical image　Kazuki Takegami, Hiroaki Hayashi, Hiroki Okino, Natsumi Kimoto, Itsumi Maehata, Yuki Kanazawa, Tohru Okazaki, Takuya Hashizume and Ikuo Kobayashi　European Congress of Radiology 　2016
  • 　Precise determination of the scattered X-ray contamination rate using diagnostic X-ray equipment for the construction of the secondary X-ray field　Itsumi Maehata, Hiroaki Hayashi, Natsumi Kimoto, Hiroki Okino, Kazuki Takegami and Yuki Kanazawa 　European Congress of Radiology 　2016
  • 　Comparison with statistical analysis of signal correction in diffusion weighted MR image　Yuto Konishi, Yuki Kanazawa, Takatoshi Usuda, Yuki Matsumoto, Hiroaki Hayashi, Tsuyoshi Matsuda and Masafumi Harada　European Congress of Radiology 　2016
  • 　 Noise estimation for diffusion weighted MR image　Yuto Konishi, Yuki Kanazawa, Takatoshi Usuda, Yuki Matsumoto, Hiroaki Hayashi, Tsuyoshi Matsuda and Masafumi Harada　European Congress of Radiology 　2016
  • 　Experimental evaluation of response functions of a CdTe detector in the diagnostic region with the aim of carrying out a basic experiment concerning a next generation photon counting system　Hiroaki Hayashi, Hiroki Okino, Kazuki Takegami, Natsumi Kimoto, Itsumi Maehata, Yuki Kanazawa, Tsutomu Yamakawa and Shuichiro Yamamoto 　European Congress of Radiology 　2016
  • 　 A Fundamental Experiment for Novel Material Identification Method Based on a Photon Counting Technique: Using Conventional X-Ray Equipment　Hiroaki Hayashi, N. Kimoto, I. Maehata, K. Takegami, H. Okino, Yuki Kanazawa, M. Okada, T. Yamakawa, S. Yamamoto and M. Yamasaki　 IEEE Nuclear Science Symposium; Medical Imaging Conference, Conference Record　2015
  • 　Measurement method of an exposed dose using the nanoDot dosimeter　Kazuki Takegami, Hiroaki Hayashi, Kohei Nakagawa, Hiroki Okino, Tohru Okazaki and Ikuo Kobayashi 　European Congress of Radiology 　2015
  • 　Evaluation of the angular dependence of the nanoDot OSL dosimeter toward direct measurement of the entrance skin dose　Tohru Okazaki, Hiroaki Hayashi, Takegami Kazuki, Hiroki Okino and Kohei Nakagawa　European Congress of Radiology 　2015
  • 　Development of new educational apparatus to visualize scattered X-rays　Hiroaki Hayashi, K Takegami, H Okino, K Nakagawa and Yuki Kanazawa 　European Congress of Radiology 　2015
  • 　Optimization of imaging parameter in contrast-enhanced three-dimensional T1 weighted MRI with fat saturation for head disease　Yuki Kanazawa, T Miyati, Hiroaki Hayashi, A Yagi and O Sato 　European Congress of Radiology　2015
  • 　Proposal of efficient irradiation system of small type OSL dosimeter for photon beams between 100-2000 keV　H. Okino, Hiroaki Hayashi, K. Takegami, N. Kimoto, I. Maehata, Yuki Kanazawa, T. Okazaki, T. Hasizume and I. Kobayashi　KEK proceedings　2015
  • 　Beta- decay of 150Ce to 150Pr　Y. Kojima, K. Kosuga, Y. Shima, A. Taniguchi, Hiroaki Hayashi and M. Shibata　KURRI progress report 2015　2015
  • 　 Identification of the excited levels of 156Pm through the decay of 156Nd　M. Shibata, R. Jyoushou, Y. Shima, K. Kasuga, Y. kojima, Hiroaki Hayashi and A. Taniguchi 　KURRI progress report 2013　2014
  • 　 Decay scheme of 150Ce　Y. Kojima, K. Kosuga, Y. Shima, A. Taniguchi, Hiroaki Hayashi and M. Shibata 　 KURRI progress report 2013　2014
  • 　Prompt g-ray Measurement of 35Cl(n,g) Using Total Absorption Type Ge Detector　Hiroaki Hayashi, Y. Kojima, M. Shibata and A. Taniguchi 　KURRI Proceedings 2012　2013
  • 　Half-Life Measurements of Excited Levels in 149Pr　Yasuaki Kojima, Yousuke Shima, Hiroaki Hayashi, Akihiro Taniguchi and Michihiro Shibata 　KURRI progress report 2012　2013
  • 　Determination of Gamma-Ray Intensities and Evaluation of Beta-Branching Ratios for the Decay of 147La to 147Ce　Yousuke Shima, Hiroaki Hayashi, Yasuaki Kojima, Akihiro Taniguchi and Michihiro Shibata 　KURRI progress report 2012　2013
  • 　Half-Life Measurements of Excited Levels in 149Nd　Y. Kojima, Y. Shima, Hiroaki Hayashi, A. Taniguchi and M. Shibata 　 KURRI Progress Report 2011　2012
  • 　Coincidence Summing Correction of Total Absorption Clover Detector for Determination of g-ray Intensities of Fission Products　Y. Shima, Y. Kojima, Hiroaki Hayashi, A. Taniguchi and M. Shibata　KURRI Progress Report 2011　2012
  • 　Newly Available Fission Products at KUR-ISOL (II)　A. Taniguchi, Y. Okubo, M. Tanigaki, Hiroaki Hayashi, M. Shibata and Y. Kojima 　KURRI Progress Report 2011　2012
  • 　 Identification of High-Energy Levels in 147Ce with a Total Absorption Clover Detector　Yosuke Shima, Yasuaki Kojima, Michihiro Shibata, Hiroaki Hayashi and Akihiro Taniguchi　JAEA-Conf-2012-001　2012
  • 　 Level Lifetime Measurements of Mass-Separated 148Pr　Y. Kojima, Hiroaki Hayashi, M. Shibata, S. Higuma, T. Fukushige, K. Shizuma and A. Taniguchi 　KURRI Progress Report 2010　2011
  • 　Decay Spectroscopy of 147La with a Total Absorption Clover Detector　Y. Shima, Hiroaki Hayashi, M. Shibata, Y. Kojima and A. Taniguchi　 KURRI Progress Report 2010　2011
  • 　Newly Available Fission Products at KUR-ISOL　A. Taniguchi, Y. Ohkubo, M. Tanigaki, Hiroaki Hayashi, M. Shibata and Y. Kojima 　KURRI Progress Report 2010　2011
  • 　Neutron Flux Measurements of Newly Developed Neutron Collimator　Hiroaki Hayashi, M. Shibata, Y. Shima and A. Taniguchi 　KURRI Progress Report 2010　2011
  • 　A new technique to measure half-lives of long-lived isomers using a total absorption detector　M Asai, Hiroaki Hayashi, A Osa, T K Sato, Y Otokawa, D Nagae, K Tsukada, Y Miyashita, H Ouchi, S Izumi, T Shinozuka and M Shibata　JAEA-Review 2009-036　2009
  • 　 Alpha-gamma coincidence spectroscopy of 259No　M Asai, K Tsukada, M Sakama, Y Ishii, A Toyoshima, T Ishii, I Nishinaka, Y Nagame, Y Kasamatsu, M Shibata, Hiroaki Hayashi, H Haba and Y Kojima 　JAEA-Review 2008-054　2008
  • 　β DECAY HALF-LIFE OF 166Eu AND LEVELS IN 166Gd　T K Sato, A Osa, M Asai, K Tsukada, Hiroaki Hayashi, M Shibata, Y Kojima and S Ichikawa 　JAEA-Review 2007-046　2008
  • 　Qβ measurements of neutron-rich isotopes with a total-absorption-type Ge detector using the KUR-ISOL　Hiroaki Hayashi, Itaru Miyazaki, Michihiro Shibata, Yasuaki Kojima and Akihiro Taniguchi　International Conference on Nuclear Date for Science and Technology　2007
  • 　Development of a determination method of the prompt gamma-ray emission probability for the measurement of neutron capture cross sections　I. Miyazaki, Hiroaki Hayashi, A. Tojo, A. Taniguchi and M. Shibata　International Conference on Nuclear Data for Science and Technology 　2007
  • 　 An Application of a Total-Absorption-Type HPGe Detector to QEC Measurements　Hiroaki Hayashi, Y Akita, M Furuta, I Miyazaki, M Shibata, Y Kojima and A Taniguchi　KURRI Progress Report 2008　2007
  • 　 Qβ DETERMINATIONS OF 160-165Eu, 163Gd, 158,159Pm, 159,161Sm AND 166Tb USING A TOTAL ABSORPTION BGO DETECTOR　Hiroaki Hayashi, Y Akita, M Shibata, T K Sato, A Osa, M Asai, K Tsukada, T Ishii, S Ichikawa, Y Kojima and A Taniguchi　JAEA-Review 2006-029　2006
  • 　DECAY STUDIES OF NEW NEUTRON-RICH ISOTOPES 163,164,165EU　T K Sato, A Osa, K Tsukada, M Asai, Hiroaki Hayashi, Y Kojima, M Shibata and S Ichikawa 　JAEA-Review 2006-029　2006
  • 　MEASUREMENT OF β-DECAY ENERGIES USING TOTAL ABSORPTION BGO DETECTOR　Hiroaki Hayashi, M Shibata, K Kawade, M Asai, T K Sato, S Ichikawa, A Osa, K Tsukada, I Nishinaka, Y Nagane, Y Kojima and A Taniguchi 　JAEA-Review 2005　2005
  • 　Qβ Measurement of 147-149La and 151Ce with a Total-Absorption-Type HPGe Detector Using the KUR-ISOL　Hiroaki Hayashi, Y Akita, I Miyazaki, M Shibata, Y Kojima, A Taniguchi and Y Ohkubo 　KURRI Progress Report 2006　2006
  • 　Qβ Measurements of Neutron-Rich Isotopes With a Total-Absorption-Type HPGe Detector Using an On-Line Mass Separator　Hiroaki Hayashi, I Miyazaki, M Shibata, K Kawade, Y Kojima, A Taniguchi and Y Kawase 　KURRI Progress Report 2005　2006
  • 　PERFORMANCES OF AN HPGe TOTAL ABSORPTION DETECTOR FOR Qβ MEASUREMENTS　Hiroaki Hayashi, I Miyazaki, M Shibata, K Kawade, M Asai, S Ichikawa, I Nishinaka, Y Nagame, A Osa, K Tsukada, Y Kojima and A Taniguchi 　JAEA-Review 2004　2004
  • 　Qβ measurement using a total absorption detector　Hiroaki Hayashi, I Miyazaki, M Shibata, K Kawade, Y Kojima, A Taniguchi and Y Kawase 　 KURRI Progress Report 2004　2004
  • 　 Qb measurement using a well-type HPGe detector　Hiroaki Hayashi, O. Suematsu, M. Shibata, Y. Kojima, A. Taniguchi and K. Kawade 　JAERI-Conf 2004-005　2003
  • 　Applicability of high tube voltage imaging to achieve accurate quantitative images when applying photon counting detectors to general radiography　Rina Nishigami, Hiroaki Hayashi, Daiki Kobayashi, Tatsuya Maeda, Takashi Asahara, Yuki Kanazawa, Natsumi Kimoto, Shuichiro Yamamoto　Proceedings of SPIE　2024
  • 　Direct dose measurement method during chest CT examination by taking into consideration the X-ray incident direction　Hiroaki HAYASHI, Tatsuya MAEDA, Sota GOTO, Kazuki TAKEGAMI, Takashi ASAHARA, Rina NISHIGAMI, Daiki KOBAYASHI, Yuki KANAZAWA, Kazuta YAMASHITA　European Congress of Radiology, EPOS　2024
  • 　Blurring correction for calculating functional images using an energy resolving photon counting detector　Daiki Kobayashi, Hiroaki Hayashi, Rina Nishigami, Cheonghae Lee, Tatsuya Maeda, Yuki Kanazawa, Akitoshi Katsumata, Natsumi Kimoto, Shuichiro Yamamoto　Proceedings of IEEE　2023
  • 　Simulation study on functional images to optimize radiographic condition using energy resolving photon counting detector　Rina Nishigami, Hiroaki Hayashi, Daiki Kobayashi, Cheonghae Lee, Tatsuya Maeda, Takashi Asahara, Yuki Kanazawa, Natsumi Kimoto, Shuichiro Yamamoto　Proceedings of IEEE　2023
  • 　Automatic determination algorithm of intrinsic parameters on response function of energy-resolving photon counting imaging detector　Cheonghae Lee, Hiroaki Hayashi, Daiki Kobayashi, Rina Nishigami, Tatsuya Maeda, Takashi Asahara, Yuki Kanazawa, Akitoshi Katsumata, Natsumi Kimoto, Shuichiro Yamamoto　Proceedings of IEEE　2023
  • 　Absolute measurement of bone mineral density in general radiography using energy-resolving photon-counting detector　Natsumi Kimoto, Hiroaki Hayashi, Cheonghae Lee, Rina Nishigami, Daiki Kobayashi, Akitoshi Katsumata, Shuichiro Yamamoto　Proceedings of IEEE　2023
  • 　Myelin Water Atlas Template Derived from Quantitative Parameter Mapping　Yuki Kanazawa, KITANO Shun, Masafumi Harada, Yo Taniguchi, Yuki Matsumoto, Hiroaki Hayashi, Kosuke Ito, Yoshitaka Bito and Akihiro Haga　Proceedings of ISMRM　2023
  • 　Diffusion weighted-viscosity imaging for atherosclerotic plaques　Mayuka Seguchi, Yuki Kanazawa, Tosiaki Miyati, Masafumi Harada, Mitsuharu Miyoshi, Yuki Matsumoto, Hiroaki Hayashi, Yasuhisa Kanematsu and Yasushi Takagi　Proceedings of ISMRM　2023
  • 　A wearable active-type dosimeter having novel functions to derive both incident direction and absolute dose of scattered X-rays during IVR procedures　Takashi Asahara, Hiroaki Hayashi, Tatsuya Maeda, Sota Goto, Daiki Kobayashi, Cheonghae Lee, Yuki Kanazawa, Naoki Maeda, Mitsugi Honda　ECR2023　2023
  • 　Practical procedure to reduce thyroid dose related to the overranging effect during fast chest CT examination using a novel sponge shield with embedded fine bismuth particles　Kazuki Takegami, Hiroaki Hayashi, Tatsuya Maeda, Cheonghae Lee, Rina Nishigami, Takashi Asahara, Shuichi Murakami, Takeshi Konishi, Motochika Maki　ECR2023　2023
  • 　Experimental study to develop elastic radiation shields embedded with metal particles　Tatsuya MAEDA, Hiroaki HAYASHI, Miku ANDO, Cheonghae LEE, Takeshi KONISHI, Shuichi MURAKAMI, Motochika MAKI, Kazuta YAMASHITA, Kosaku HIGASHINO　ECR2023　2023
  • 　Determination of white matter structure index for voxel basedmorphometry and connectivity analysis　N.Ikemitsu, Y.Kanazawa, M.Harada, Y.Matsumoto, H.Hayashi, K.Ito, Y.Taniguchi, Y.Bito, A.Haga　EPOS, ECR 2022　2022
  • 　Development of a B1 correction method without additionalscanning for VFA T1 mapping　N.Fukuda, Y.Kanazawa, H.Hayashi, Y.Matsumoto, M.Harada, M.Sasaki, A.Haga　EPOS, ECR 2022　2022
  • 　Determination of white matter structure index for voxel basedmorphometry and connectivity analysis　N.Ikemitsu, Y.Kanazawa, M.Harada, Y.Matsumoto, H.Hayashi, K.Ito, Y.Taniguchi, Y.Bito, A.Haga　2021
  • 　Development of a B1 correction method without additionalscanning for VFA T1 mapping　N.Fukuda, Y.Kanazawa, H.Hayashi, Y.Matsumoto, M.Harada, M.Sasaki, A.Haga　2021
  • 　An idea for preparing the stabilized optically stimulated luminescence (OSL) dosimeters having smaller signal depletion　Sota GOTO, Hidetoshi YAMAGUCHI, Morihito SHIMIZU, Hiroaki HAYASHI, Hiroshi SEKIGUCHI, Ryuji AKINO　Proceedings of IEEE(NSS)　4 pages　2021
  • 　Bone and soft-tissue images extraction through derivation of effective atomic number image using photon-counting detector　Cheonghae Lee, Hiroaki Hayashi, Natsumi Kimoto, Tatsuya Maeda, Miku Ando, Yuki Kanazawa, Akitoshi Katsumata, Shuichiro Yamamoto, Masahiro Okada　5 pages　2021
  • 　RSNA Award report　Radfan　18　2　2020
  • 　Determining the difference of calibration factors in diagnostic X-rays and mono-energetic X-rays of the small type OSL dosimeter for a more precise dose evaluation in diagnostic X-ray examinations　T. Okazaki, H. Hayashi, S. Goto, T. Asahara, E. Tomita, Y. Kanazawa, T. Hashizume, V. Cruz, W. H. Cheng　2019
  • 　Where do the scattering X-rays to eye lens exposure come from during neonatal cardiac CT examination?　Yoshiki Mihara, Hiroaki Hayashi, Takumi Uehara, Emi Tomita, Sota Goto, Keiji Tada, Yuki Kanazawa, Tohru Okazaki, Takuya Hashizume　2019
  • 　A novel mammographic substance discrimination technique with fusion imaging: Initial results of detection of breast cancer from resected breast tissues by energy-resolved photon counting detector　M. Sasaki, S. Koyama, Y. Kodera, H. Nishide, M. Mizutani, M. Watanabe, N. Yoshida, H. Hayashi, S. Yamamoto　2019
  • 　Dose calibration factor of an OSL dosimeter during CT examination to measure exposure dose of patients taking into consideration proper X-ray quality　Kazuki Takegami, Hiroaki Hayashi, Takashi Asahara, Sota Goto, Emi Tomita, Natsumi Kimoto, Yuki Kanazawa, Shohei Kudomi　2020
  • 　Multi-components analysis of brain using ultrashort echo time magnetic resonance imaging　Yugo Wada, Yuki Kanazawa, Masafumi Harada, Naoki Maeda, Yuki Matsumoto, Takashi Abe, Hiroaki Hayashi, and Mitsuharu Miyoshi　2020
  • 　Multicomponent T1 Relaxometry Analysis using Quantitative Parameter Mapping Magnetic Resonance Imaging　Naoki Maeda, Yuki Kanazawa, Masafumi Harada, Yo Taniguchi, Yuki Matsumoto, Takashi Abe, Hiroaki Hayashi, Masaharu Ono, and Yoshitaka Bito　2020
  • 　Optimizing the imaging conditions of energy resolved photoncounting mammography by simulating the characteristics of an actual detector　H. Kimura, S. Koyama, Y. Kodera, H. Hayashi, N. Kimoto, H. Nishide, S., Yamamoto, M. Okada , D. Hashimoto　2020
  • 　Importance of considering the response function of photon counting detectors with the goal of precise material identification　Takumi Asakawa, Hiroaki Hayashi, Natsumi Kimoto, Takashi Asahara, Tatsuya Maeda, Shuji Koyama, Shuichiro Yamamoto, Masahiro Okada　2020

Arts and Fieldwork

Patent

Theme to the desired joint research

Grant-in-Aid for Scientific Research

○「診断領域のX線被ばくの実測に向けたウエアラブル線量計の開発」(2015-2018)　
○「組織を透過したX線のエネルギー解析による定量的画像診断法の確立」(2018-2021)　
○「放射線治療時のリスク臓器線量のインビボ測定に向けたディスポーザブル線量計の開発」(2019-2022)　
○「光子計数型X線撮影による被写体の定量分析技術の開発と骨強度の定量指標の導出」(2024-2026)　
○「光子減弱スペクトラム分析を応用した乳房X線撮影装置開発のための基礎的研究」(2022-2025)　

Competitive research funding,Contribution

Collaborative research,Consignment study

○酸化ベリリウムOSL線量計に関する研究(2022-2024)

Classes (Bachelors)

○Radiation Measurement Experiment 2(2023)
○Radiochemistry Experiment(2023)
○Radiation Measurement Experiment 2(2023)
○Radiochemistry Experiment(2023)
○Radiological Physics B(2023)
○Radiochemistry B(2023)
○Radiochemistry A(2023)
○Radiological Physics A(2023)
○Introduction to Data Science(2023)
○Radiation Physics(2022)
○Introduction to Data Science(2022)
○Radiochemistry Experiment(2022)
○Radiation Measurement Experiment 2(2022)
○Radiation Measurement Experiment 2(2022)
○Radiochemistry Experiment(2022)
○Radiochemistry(2022)
○Radiation Physics(2022)
○Radiochemistry(2022)

Classes (Graduate Schools)

○Analytics for Functional Imaging: Seminar(2023)
○Analytics for Functional Imaging: Seminar(2023)
○Analytics for Functional Imaging: Seminar(2023)
○Analytics for Functional Imaging: Seminar(2023)
○Analytics for Functional Imaging: Lecture(2023)
○Analytics for Functional Imaging: Lecture(2023)
○Analytics for Functional Imaging: Lecture(2023)
○Analytics for Functional Imaging: Lecture(2023)
○Laboratory Rotation I(2023)
○Radiological Imaging Technology: Seminar(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Medical Physics:Lecture(2023)
○Medical Physics:Lecture(2023)
○Radiological Imaging Technology: Seminar(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Medical Physics:Lecture(2023)
○Radiological Imaging Technology: Seminar(2023)
○Radiological Imaging Technology: Seminar(2023)
○Medical Physics:Lecture(2023)
○Laboratory Rotation Ⅱ(2023)
○Laboratory Rotation Ｉ(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
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○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Processing & Anal. for Biofunctional Imaging: Res.(2023)
○Research Design in Medical Radiation Science: Lec.(2023)
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○Laboratory RotationⅠ(2023)
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○Medical Physics:Lecture(2022)
○Radiological Imaging Technology: Seminar(2022)
○Processing & Anal. for Biofunctional Imaging: Res.(2022)
○Medical Physics:Lecture(2022)
○Radiological Imaging Technology: Seminar(2022)
○Processing & Anal. for Biofunctional Imaging: Res.(2022)
○Radiological Imaging Technology: Lecture(2022)
○Processing & Anal. for Biofunctional Imaging: Res.(2022)
○Processing & Anal. for Biofunctional Imaging: Res.(2022)
○Radiological Imaging Technology: Lecture(2022)

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