Hayashi Hiroaki

ハヤシヒロアキ | Hayashi Hiroaki

Affiliation and department：
Job title： Professor
Homepage URL (1)： http://hayashi.w3.kanazawa-u.ac.jp/

Research field (5)： Medical systems , Radiology , Quantum beam science , Semiconductors, optical and atomic physics , Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Research keywords (6)： Dosimeter , Photon counting , Plain X-ray examination , Medical physics , 崩壊核分光即発ガンマ線分析 , 放射線計測

Research theme for competitive and other funds (14)：

2024 - 2027 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
2022 - 2025 Basic research to develop the next-generation mammography using photon-counting technology.
2022 - 2024 被写体の定量情報を引き出せる新しいレントゲン撮影検出器の開発
2023 - 2024 発がんリスクの低減を目指すためのX線CT検査の被曝線量実測に関する研究
2022 - 2024 酸化ベリリウムOSL線量計に関する研究

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Papers (187)：

Takashi Asahara, Shunsuke Okada, Hiroaki Hayashi, Tatsuya Maeda, Rina Nishigami, Daiki Kobayashi, Chihiro Kurose, Natsumi Kimoto, Sota Goto, Miki Hisatomi, et al. Helpfulness of effective atomic number image in forensic dental identification: Photon-counting computed tomography is suitable. Computers in Biology and Medicine. 2025. 184. 109333-109333
Hiroaki Hayashi, Tatsuya Maeda, Kazuki Takegami, Rina Nishigami, Daiki Kobayashi, Takashi Asahara, Sota Goto, Natsumi Kimoto, Yuki Kanazawa, Kazuta Yamashita, et al. A suitable procedure of dose reduction factor measurements of X-ray shields during computed tomography examination - The importance of considering positional changes of an X-ray tube. Radiation Physics and Chemistry. 2024. 222. 111880-111880
Miku Ando, Hiroaki Hayashi, Sota Goto, Hidetoshi Yamaguchi, Morihito Shimizu. Beam quality conversion factor of BeO-OSLD for high-energy photon beams. Radiation Measurements. 2024. 175. 107164-107164
Asahara, T., Hayashi, H., Maeda, T., Kobayashi, D., Nishigami, R., Goto, S., Ando, M., Kimoto, N., Kanazawa, Y., Yamashita, K. Evaluation of lower detection limit and performance analyses related to the incident angle of X-rays and absolute dose using a triple-type dosimeter. Radiation Measurements. 2024. 175
Tatsuya Maeda, Hiroaki Hayashi, Miku Ando, Rina Nishigami, Daiki Kobayashi, Takashi Asahara, Sota Goto, Natsumi Kimoto, Kazuki Takegami, Kazuta Yamashita, et al. Effectiveness of an X-ray shielding sheet with lower shielding ability to enable both bone mineral density determination and morphological diagnosis. Radiation Measurements. 2024. 107219-107219

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MISC (27)：

後藤聡汰, 後藤聡汰, 山口英俊, 清水森人, 林裕晃. 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. 日本放射線技術学会雑誌. 2019. 75. 9
橋詰拓弥, 橋詰拓弥, 岡崎徹, 佐波俊哉, 佐波俊哉, 萩原雅之, 萩原雅之, 文珠四郎秀昭, 文珠四郎秀昭, 林裕晃, et al. モンテカルロシミュレーションによる蛍光飛跡検出器の飛跡検出能の評価. 日本原子力学会春の年会予稿集(CD-ROM). 2018. 2018. ROMBUNNO.1E02
橋詰拓弥, 橋詰拓弥, 岡崎徹, 佐波俊哉, 佐波俊哉, 萩原雅之, 萩原雅之, 文珠四郎秀昭, 文珠四郎秀昭, 林裕晃, et al. 蛍光飛跡検出器に斜め入射した荷電粒子の飛跡読取りにおけるγ線の影響評価. 日本原子力学会秋の大会予稿集(CD-ROM). 2017. 2017. ROMBUNNO.2Q04
橋詰拓弥, 橋詰拓弥, 岡崎徹, 佐波俊哉, 佐波俊哉, 萩原雅之, 萩原雅之, 文珠四郎秀昭, 文珠四郎秀昭, 林裕晃, et al. 蛍光飛跡検出器(FNTD)の粒子飛跡読取りにおけるX/γ線照射の影響. 日本原子力学会春の年会予稿集(CD-ROM). 2017. 2017. ROMBUNNO.2B11
橋詰拓弥, 橋詰拓弥, 岡崎徹, 佐波俊哉, 佐波俊哉, 萩原雅之, 萩原雅之, 文珠四郎秀昭, 文珠四郎秀昭, 林裕晃, et al. γ線照射によるFNTDの粒子飛跡画像への影響. 日本保健物理学会研究発表会講演要旨集. 2017. 50th. 112

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Patents (16)：

放射線検出器
CT撮影に用いる放射線遮蔽体の性能評価方法
X線遮蔽シート
IMAGE PROCESSING METHOD AND IMAGE PROCESSING DEVICE
画像処理方法および画像処理装置

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Books (7)：

Impact of Blurring Correction Method in Quantitative Image Analysis Using Energy-Resolving Photon Counting Detector (ERPCD)
2024 ISBN:9783031645211
A Novel Algorithm to Create Quantitative X-Ray Images Based on Precise Analysis of Polychromatic X-Ray Attenuation
Springer 2024 ISBN:9783031638961
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 ISBN:9783031260612
Algorithm for Generating Effective Atomic Number, Soft-Tissue, and Bone Images Based on Analysis Using an Energy-Resolving Photon-Counting Detector
2022
Photon Counting Detectors for X-ray Imaging
2021

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Lectures and oral presentations (225)：

フォトンカウンティング技術におけるキャリブレーションファントムを用いた実効原子番号の推定
(第80回日本放射線技術学会総会学術大会 2024)
Discrimination of non-metal dental material using photon counting CT toward identifying human remains
(The 3rd International Conference on Radiological Physics and Technology (ICRPT) 2024)
Convenient procedure to determine a dose reduction factor of the collar-type thyroid shield used for the chest CT examination
(The 3rd International Conference on Radiological Physics and Technology (ICRPT) 2024)
Suitability of High Tube Voltage Imaging for General Radiography When Using Energy Resolving Photon Counting Detectors
(The 3rd International Conference on Radiological Physics and Technology (ICRPT) 2024)
A correction method for image blurring to derive accurate quantitative material information using an energy resolving photon counting detector
(The 3rd International Conference on Radiological Physics and Technology (ICRPT) 2024)

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Education (3)：

2005 - 2009 名古屋大学大学院工学研究科マテリアル理工学専攻博士後期課程
2003 - 2005 名古屋大学大学院工学研究科原子核工学専攻博士前期課程
2000 - 2003 Nagoya University School of Engineering Physical Science and Engineering

Professional career (1)：

博士(工学) (名古屋大学)

Work history (4)：

2024/07 - 現在 Kanazawa University College of Transdisciplinary Sciences for Innovation Professor
2017/12 - 2024/06 Kanazawa University Institute of Medical, Pharmaceutical and Health Sciences, Faculty of Health Sciences
2011/04 - 2017/11 The University of Tokushima
2009/04 - 2011/03 Nagoya University Radioisotope Research Center

Awards (26)：

2024/03 - ECR2024, European Congress of Radiology Scientific Exhibition Jury Certificate of Merit Award Direct dose measurement method during chest CT examination by taking into consideration the X-ray incident direction
2023/09 - SSD20, 20th international conference on solid state dosimetry Best Poster Presentation Award Exposure Dose Reduction in Medical X-ray Diagnostics for BMD Measurement
2023/04 - 2nd International Conference on Radiological Physics and Technology (ICRPT) Outstanding Presentation Award A novel function for wearable dosimeters: to determine both incident direction and absolute dose of X-rays during IVR procedure
2022/12 - 22nd Asia-Oceania Congress on Medical Physics Best poster award A Novel Method to Reduce Exposure Dose When Performing BMD Measurement Using Diagnostic X-ray Examinations
2022/04 - Outstanding Presentation Award (JRC2022) Bone and soft-tissue image generation method based on one shot X-ray exposure using a photon-counting detector

2021/04 - 第77回日本放射線技術学会総会学術大会, JSRT Silver Award Simulation Study to Calculate Shielding Rate for the Development of Three-Dimensional Non-Uniform Shielding Material

2021/04 - 金沢大学医薬保健研究域保健学系令和2年度優秀教員表彰(優秀教育教員)

2020/06 - JRC2020web, web座長賞

2020/06 - JSRT Bronze Award Sensitivity Analysis of Parameters When Calculating the Shielding Rate Using Monte-Carlo Simulation and Experimentation

2020/06 - 第76回日本放射線技術学会総会学術大会, JSRT Bronze Award 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-

2019/12 - RSNA2019 Education Exhibit Presentation Certificate of Merit Award Photon counting technique: How to analyze a novel quantitative image?

2019/03 - ECR 2019 Scientific Exhibition Certificate of Merit Award Where do the scattering X-rays to eye lens exposure come from during neonatal cardiac CT examination?

2018/04 - 社団法人日本放射線技術学会 RPT most citation award Practical calibration curve of small-type optically stimulated luminescence (OSL) dosimeter for evaluation of entrance-skin dose in the diagnostic X-ray region

2017/04 - 社団法人日本放射線技術学会 RPT journal Doi paper award Energy dependence measurement of small-type optically stimulated luminescence (OSL) dosimeter by means of characteristic X-rays induced with general diagnostic X-ray equipment

2017/03 - 徳島大学医学部研究奨励賞 OSL線量計を用いた診断領域の被曝線量測定に向けた基礎研究

2017/03 - 徳島大学医学部保健学科保健学科教育賞

2016/11 - Council on ionizing radiation measurements and standards CIRMS Ribbon Award 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

2016/11 - Radiological Society of North America (RSNA) Certificate of merit 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

2015/12 - 日本放射線安全管理学会日本放射線安全管理学会第14回学術大会優秀プレゼンテーション賞蛍光飛跡検出器(FNTD)を用いた中性子線量測定における基礎特性

2015/03 - 徳島大学医学部岡奨学賞医療被ばく実測に向けた新しいウエアラブル線量計の開発

2014/05 - 医用画像情報学会金森奨励賞動的マルチスリットを用いたコンピューティッドラジオグラフィシステムの特性曲線の取得

2014/04 - 社団法人日本放射線技術学会研究奨励賞・技術新人賞 Dgital Radiographyシステムで発生した黒点の放射能の推定,診断用X線装置を用いた霧箱実験の提案とシミュレーションコードを援用した解析

2014/03 - 徳島大学大学院徳島大学大学院ヘルスバイオサイエンス研究部長賞

2013/11 - 日本放射線安全管理学会学術業績賞 X線漏洩源の特定のための円環状コリメータカメラの開発

2013/06 - 医用画像情報学会内田論文賞輝尽性蛍光体プレートを用いて取得したX線画像上の黒点発生の解明に向けたモンテカルロシミュレーションー原子力発電所事故で飛散した核分裂収率の大きい放射性同位元素の影響-

2009/12 - 日本放射線安全管理学会第8回日本放射線安全管理学会学術大会ポスター賞化学雑巾を用いた表面汚染検査の現状と他製品の利用可能性の検討

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Association Membership(s) (6)：

MEDICAL IMAGING AND INFORMATION SCIENCES , JAPAN SOCIETY OF MEDICAL PHYSICS , 放射線安全管理学会 , 日本物理学会 , 日本原子力学会 , Japanese Society of Radiation Safety Management

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