名古屋大学 大学院医学系研究科 医療技術学専攻 医用量子科学講座 山本研究室

研究業績

2021年

  • S. Yamamoto, T. Yabe, T. Akagi, Feasibility study of an efficient method to measure depth profile of particle ions using a wedge-shaped acrylic block, Journal of Instrumentation, in-press
  • C. Toyonaga, S. Yamamoto, Y. Hirano, K. Okudaira, T. Kato, K. Sugita, A method to reduce the error due to the angular dependencies of Cerenkov-light in water for optical imaging of X-rays from high-energy medical linear accelerators (LINAC), Journal of Instrumentation, 16 T03001, 2021
  • T. Fukuchi, M. Shigeta, H. Haba, D. Mori, T. Yokokita, Y. Komori, S. Yamamoto and Y. Watanabe, Image reconstruction method for dual-isotope positron emission tomography, Journal of Instrumentation, 16, P01035, 2021
  • K. Yogo, Y. Noguchi, K. Okudaira, M. Nozawa, H. Ishiyama, H. Okamoto, H. Yasuda, H. Oguchi, S. Yamamoto, Source position measurement by Cherenkov emission imaging from applicators for high‐dose‐rate brachytherapy, Medical Physics, 48 (1), 488-499, 2021
  • S. Yamamoto, T. Yabe, T. Akagi, Y. Hirano, Imaging of polarized components of Cerenkov‐light and luminescence of water during carbon ion irradiation, Medical Physics, 48 (1), 427-433, 2021
  • Y. Hirano, S. Yamamoto, N. Kawamura, K. Ninomiya, Position distribution calculation of annihilation radiations and bremsstrahlung X rays in water during irradiation of positive muons: a Monte Carlo simulation study, Physica Scripta, 96 025302, 2021
  • S. Yamamoto, I. Aoki, T. Higashi, Optical fiber-based ZnS (Ag) detector for selectively detecting alpha particles, Applied Radiation and Isotopes, 109495, 169, 2021
  • S. Yamamoto, Y. Nagao, K. Kurita, M. Yamaguchi and N. Kawachi, Measurements of intensity of produced light in water during irradiations of electron beams with energies above and below the Cerenkov-light threshold, Journal of Instrumentation, 16, P01007, 2021
  • S. Yamamoto, T. Akagi, M. Yamaguchi and N. Kawachi, Estimation of the origins and fractions of emitted light from acrylic block during irradiation of carbon-ions, Journal of Instrumentation, 16, P01004, 2021

2020年

  • J. Nagata, S. Yamamoto, Y. Noguchi, T. Nakaya, K. Okudaira, K. Kamada𝑐 and A. Yoshikawa, Development of a low-sensitivity high resolution YAP(Ce) scintillation camera system toward the real-time imaging of an 192Ir source during high-dose-rate brachytherapy, Journal of Instrumentation, 15 P12018, 2020
  • S. Yamamoto, K. Ninomiya, N. Kawamura, Y Hirano, Optical imaging of muons, Scientific Reports 10 (1), 1-11, 2020
  • S. Yamamoto, H. Tomita, Comparison of light outputs, decay times, and imaging performance of a ZnS (Ag) scintillator for alpha particles, beta particles, and gamma photons, Applied Radiation and Isotopes, 109527, 2020
  • K. Nakanishi, S Yamamoto, T Watabe, K Kaneda‐Nakashima, Y Shirakami, et al., Development of high‐resolution YAP (Ce) X‐ray camera for the imaging of astatin-211 (At-211) in small animals, Medical Physics 47 (11), 5739-5748, 2020
  • K. Nakanishi, S Yamamoto, K Kamada, A Yoshikawa, Performance evaluation of YAlO3 scintillator plates with different Ce concentrations, Applied Radiation and Isotopes, 168, 109483, 2021
  • M. Yamaguchi, C-C Liu, H-M Huang, T. Yabe, T. Akagi, N. Kawachi, S. Yamamoto, Dose image prediction for range and width verifications from carbon‐ion induced secondary electron bremsstrahlung X-rays using deep learning workflow, Medical Physics , 47 (8),3520-3532,2020
  • H.-G. Kang, S. Yamamoto, S. Takyu, F. Nishikido, A. Mohammadi, G. Akamatsu,et al., Energy spread estimation of radioactive oxygen ion beams using optical imaging, Physics in Medicine & Biology, 65, 235002(13pp), 2020
  • S. Yamamoto, Discovery of the luminescence of water during irradiation of radiation at a lower energy than the Cherenkov light threshold, Radiological Physics and Technology, 1-9, 2020
  • S. Yamamoto, Detection of luminescence of radicals from TiO2 plate during alpha particle irradiation, Journal of Biomedical Optics 25 (9), 096008(9pp), 2020
  • S. Yamamoto, Y. Hirano, K. Kamada, A. Yoshikawa, Development of an ultrahigh- resolution radiation real-time imaging system to observe trajectory of alpha particles in a scintillator, Radiation Measurements, 134, 106368(6pp), 2020
  • T. Yabe, T. Akagi, and S. Yamamoto, Estimation and correction of Cerenkov-light on luminescence image of water for carbon-ion therapy dosimetry, Physica Medica 74 118–124, 2020
  • T. Yabe, S. Yamamoto, M. Oda, K. Mori, T. Toshito, T. Akagi, “Prediction of dose distribution from luminescence image of water using a deep convolutional neural network for particle therapy”, Medical Physics, Vol.47, No.9, pp.3882-3891, 2020
  • S. Yamamoto, M. Yamaguchi, T. Akagi, M. Kitano and N. Kawachi, Sensitivity improvement of YAP(Ce) cameras for imaging of secondary electron bremsstrahlung x-rays emitted during carbon-ion irradiation: problem and solution, Phys. Med. Biol. 65 105008, 2020
  • Y. Morishita, K. Izaki, J. H. Kaneko, S. Yamamoto, M. Higuchi, T. Torii, Development of a Gd₂Si₂O₇ (GPS) Scintillator-Based Alpha Imaging Detector for Rapid Plutonium Detection in High-Radon Environments, IEEE Transactions on Nuclear Science 67 (10), 2203-2208, 2020
  • M. Yamaguchi, S. Yamamoto, M. Kitano, Y. Kubota, M. Sakai, T. Akagi, Estimation of shifts of therapeutic carbon-ion beams owing to cavities in a polyethylene target by measuring prompt X-ray images, Japanese Journal of Applied Physics 59 (8), 087001, 2020
  • Y. Hirano, M. Komori, D. Onoda, T. Nagae, S. Yamamoto, Radioluminescence by synchrotron radiation with lower energy than the Cherenkov light threshold in water, Journal of Physics Communications 4 (7), 075002(10pp), 2020
  • S. Yamamoto, T. Akagi, Y. Hirano, M. Komori, Measurements of temporal response of luminescence of water at lower energy than Cerenkov-light threshold during carbon-ion irradiation, Biomed. Phys. Eng. Express 6, 04500(7pp), 2020
  • S. Yamamoto, K. Nakanishi, T. Furukawa, H. Tomita, K. Kamada and A. Yoshikawa, Imaging of bremsstrahlung X-rays from tritium water in a plastic bag using a LaGPS radiation imaging system, Journal of Instrumentation, 15 P04006, 2020
  • K. Nakanishi, S. Yamamoto, Monte Carlo simulation of the bremsstrahlung X-rays emitted from H-3 and C-14 for the in-vivo imaging of small animals, Applied Radiation and Isotopes,160, 109136 (6pp), 2020
  • S. Yamamoto, K. Kato, S. Abe, Optical imaging of produced light in water during irradiation of gamma photons lower energy than the Cerenkov-light threshold, Applied Radiation and Isotopes, 157, 109037(7pp), 2020
  • C. Toyonaga, S. Yamamoto, K. Yogo, K. Okudaira, F. Kawabata, T. Nakaya, H. Oguchi, A method of absorbed dose determination using vitamin B2 water for optical imaging of X-rays from high energy medical linear accelerators, Radiation Measurements 131, 106227(9pp), 2020

2019年

  • S. Yamamoto, K. Nakanishi and S. Terazawa, Feasibility evaluation of a direct detection method of alpha particles in water using YGAG plate with pulse shape analysis, Journal of Instrumentation, 14, P10013(11pp), 2019
  • S. Yamamoto, T. Ito, S. Takekawa, Y. Suzuki, K. Nagao, Y. Anzai and H. Ishibashi, Performance evaluation for a radiation imaging detector using single-crystal GPS (Ce) plate, Journal of Instrumentation, 14, P10025(11pp), 2019
  • Tomonori Fukuchi, Seiichi Yamamoto, Jun Kataoka, Kei Kamada, Akira Yoshikawa, Yasuyoshi Watanabe, Shuichi Enomoto, Beta‐ray imaging system with γ‐ray coincidence for multiple‐tracer imaging, Med. Phys. 2019, in-press
  • Seiichi Yamamoto, Kei Kamada, and Akira Yoshikawa, Investigation of the relation of decay time differences and α–β ratios for newly developed scintillators, IEEE Trans. Nucl. Sci., 66(11), 2324-2328, 2019
  • Yoshiyuki Hirano, Kazuhiko Ninomiya and Seiichi Yamamoto, Estimation of dose and light distributions in water during irradiation of muon beams, Physica Scripta, 94, 125804(9pp), 2019
  • Takuya Yabe, Masataka Komori, Takashi Akagi, Tomohiro Yamashita and Seiichi Yamamoto, Imaging of fragment particles in water by nuclear spallation during carbon-ion irradiation, Phys. Med. Biol. 64, 13NT01 (6pp), 2019
  • Seiichi Yamamoto, Mitsutaka Yamaguchi, Takashi Akagi, Makoto Sasano, Naoki Kawachi, Development of a YAP (Ce) camera for the imaging of secondary electron bremsstrahlung X-ray emitted during carbon-ion irradiation toward the use of clinical conditions, Phys. Med. Biol. 64, 135019 (15pp), 2019
  • Yano F, Itoh M, Hirakawa H, Yamamoto S, Yoshikawa A, Hatazawa J., Diagnostic accuracy of positron emission mammography with 18F-fluorodeoxyglucose in breast cancer tumor of less than 20 mm in size. Asia Ocean J Nucl Med Biol.;7(1):13-21, 2019
  • Seiichi Yamamoto, Katsunori Yogo, Yumiko Noguchi, Takayoshi Nakaya, Kuniyasu Okudaira, Imaging of Ir-192 source using a high energy gamma camera for high-dose-rate brachytherapy, Radiation Measurements, Volume 126, 106128(5pp), 2019
  • Yoshiyuki Hirano, Seiichi Yamamoto, Estimation of the fractions of luminescence of water at higher energy than Cerenkov-light threshold for various types of radiation, Journal of Biomedical Optics, 24(6), 066005(9pp), 2019
  • Han Gyu Kang, Seiichi Yamamoto, Sodai Takyu, Fumihiko Nishikido, Akram Mohammadi, Ryo Horita, Shinji Sato, Taiga Yamaya, Optical imaging for the characterization of radioactive carbon and oxygen ion beams, Phys. Med. Biol. 64 115009 (10pp), 2019
  • Ryo Horita, Seiichi Yamamoto, Katsunori Yogo, Yoshiyuki Hirano, Kuniyasu Okudaira, Fumitaka Kawabata, Takayoshi Nakaya, Masataka Komori, Hiroshi Oguchi, Estimation of the three-dimensional (3D) dose distribution of electron beams from medical linear accelerator (LINAC) using plastic scintillator plate, Radiation Measurements, 124, 103-108, 2019
  • Ryo Horita, Seiichi Yamamoto, Katsunori Yogo, Masataka Komori, Toshiyuki Toshito, Three-dimensional (3D) dose distribution measurements of proton beam using a glass plate, Biomedical Physics & Engineering Express, 5, 045033(10pp), 2019
  • S. Yamamoto and S. Terazawa, A high resolution radiation imaging detector using a ceramic YGAG scintillator plate, JINST 14 P03014(19pp), 2019
  • Yoshiyuki Hirano and Seiichi Yamamoto, Angular dependencies of Cerenkov-light in water for carbon-ion, high energy x-ray and electron, Biomed Phys Eng Express 5, 027003(7pp), 2019
  • Seiichi Yamamoto, Jun Kataoka, Kei Kamada, Akira Yoshikawa, An ultrahigh spatial resolution radiation-imaging detector using 0.1 mm × 0.1 mm pixelated GAGG plate combined with 1 mm channel size Si-PM array, Nuclear Instruments and Methods in Physics Research Section A: 919, 1, 125-133, 2019
  • Seiichi Yamamoto, Kei Kamada, Shunsuke Kurosawa, Akira Yoshikawa, Development of a high resolution LaGPS imaging detector with pulse shape discrimination capability of different types of radiations, Nuclear Inst. and Methods in Physics Research-A, 922, 8–18, 2019

2018年

  • Seiichi Yamamoto, Kei Kamada, Akira Yoshikawa, Use of YAP (Ce) in the development of high spatial resolution radiation imaging detectors, Radiation Measurements, 119, 184–191, 2018
  • Kouhei Nakanishi, Yoshiyuki Hirano, Seiichi Yamamoto, Comparison of noise equivalent count rates (NECRs) for the PET systems with different ring diameter and electronics, IEEE Transactions on Radiation and Plasma Medical Sciences, 3(3),371-376, 2019
  • Muhammad Nasir Ullah, Eva Pratiwi, Jin Ho Park, Seiichi Yamamoto, Kei Kamada, Akira Yoshikawa, Jung-Yeol Yeom, Studies on sub-millimeter LYSO: Ce, Ce: GAGG, and a new Ce: GFAG block detector for PET using digital silicon photomultiplier, Nuclear Inst. and Methods in Physics Research-A, 911, 115-122, 2018
  • Seiichi Yamamoto, Katsuhiko Kato, Naotoshi Fujita, Masato Yamashita, Takuya Nishimoto, Hiroshi Kameyama, Shinji Abe, Detection of alpha radionuclides in air from patients during Ra-223 alpha radionuclide therapy, Scientific Reports, 8, 10976, 2018
  • Masao Yoshino, Kei Kamada, Vladimir V Kochurikhin, Mikhail Ivanov, Martin Nikl, Satoshi Okumura, Seiichi Yamamoto, Jung Yeol Yeom, Yasuhiro Shoji, Shunsuke Kurosawa, Yuui Yokota, Yuji Ohashi, Akira Yoshikawa, Li+, Na+ and K+ co-doping effects on scintillation properties of Ce: Gd3Ga3Al2O12 single crystals, Journal of Crystal Growth, 491, 1-5, 2018
  • S. Yamamoto, R. Horita, T. Toshito and M. Komori, Imaging of the scintillation light of float and silica glasses during irradiation of radiations, Journal of Instrumentation, 13, P10021, 2018
  • S. Yamamoto, H. Nitta, Development of a Si-PM-based GGAG radiation-imaging detector with pulse shape discrimination capability to separate different types of radiation, Radiation Measurements, 119, 85–92, 2018
  • S. Yamamoto, H. Nitta, Pulse shape discriminations of different types of radiation on GGAG imaging detector, Nuclear Inst. and Methods in Physics Research-A, 910, 174–183, 2018
  • Seiichi Yamamoto, Kuniyasu Okudaira, Fumitaka Kawabata, Takayoshi Nakaya, Hiroshi Oguchi, Imaging of produced light in water during high energy electron beam irradiations from a medical linear accelerator, Radiation Measurements, 116 , 1–9, 2018 
  • Seiichi Yamamoto, Takashi Akagi, Tomohiro Yamashita, Juha Toivonen, Mitsutaka Yamaguchi, Masataka Komori, Naoki Kawachi, Source of luminescence of water lower energy than the Cerenkov-light threshold during irradiation of carbon-ion, Journal of Physics Communications, 2, 065010, 2018
  • T. Yabe, M. Sasano, Y. Hirano, T. Toshito, T. Akagi, T. Yamashita, M. Hayashi, T. Azuma, Y. Sakamoto, M. Komori and S. Yamamoto, Addition of luminescence process in Monte Carlo simulation to precisely estimate the emitted light from water during proton and carbon-ion irradiations, Phys. Med. Biol., 63, 125019 (12pp), 2018
  • Masataka Komori, Eri Sekihara, Takuya Yabe, Ryo Horita, Toshiyuki Toshito and Seiichi Yamamoto, Luminescence imaging of water during uniform field irradiation by spot scanning proton beams, Phys. Med. Biol. 63 11NT01, 1-8, 2018
  • Seiichi Yamamoto, Hideo Nitta, Development of an event-by-event based radiation imaging detector using GGAG: A ceramic scintillator for X-ray CT, Nuclear Inst. and Methods in Physics Research, A 900, 25–31, 2018
  • S. Yamamoto, J. Kataoka, T. Fukuchi, K. Kamadad and A. Yoshikawa, Development of ultrahigh resolution radiation imaging detector using 1mm channel size Si-PM array combined with 0.2mm x 0.2mm pixelated GAGG plate, JINST 13 P05028, 2018
  • Seiichi Yamamoto, Hideki Tomita, Development of a high-resolution alpha-particle imaging system for detection of plutonium particles from the Fukushima Daiichi nuclear power plant, Radiation Measurements 115, 13–19, 2018
  • Seiichi Yamamoto and Wataru Kawaguchi, Development of ultrahigh resolution alpha particle imaging detector using 1 mm channel size Si-PM array, Nuclear Inst. and Methods in Physics Research, A , 894, 33-38, 2018
  • Seiichi Yamamoto, Kei Kamada, Akira Yoshikawa, Ultrahigh resolution radiation imaging system using an optical fiber structure scintillator plate, Scientific Reports, 2018;8(1):3194
  • Yabe T, Komori M, Toshito T, Yamaguchi M, Kawachi N, Yamamoto S, Estimation and correction of produced light from prompt gamma photons on luminescence imaging of water for proton therapy dosimetry, Phys. Med. Biol. 63, 04NT02, 2018
  • Takuya Yabe, Masataka Komori, Ryo Horita, Toshiyuki Toshito, Seiichi Yamamoto, Estimation of the optical errors on the luminescence imaging of water for proton beam, Nuclear Inst. and Methods in Physics Research, A , 888, 163-168, 2018
  • Masuda T, Kataoka J, Arimoto M, Takabe M, Nishio T, Matsushita K, Miyake T, Yamamoto S, Inaniwa T, Toshito T, Measurement of nuclear reaction cross sections by using Cherenkov radiation toward high-precision proton therapy, Scientific Reports, 2018;8(1):2570
  • Yamaguchi M, Nagao Y, Ando K, Yamamoto S, Sakai M, Parajuli RK, Arakawa K, Kawachi N, Imaging of monochromatic beams by measuring secondary electron bremsstrahlung for carbon-ion therapy using a pinhole x-ray camera, Phys Med Biol. 2018;63(4):045016
  • Seiichi Yamamoto, Katsuhiko Kato, Hiroshi Kameyama, Shinji Abe, Imaging of Ra-223 solution using an optical method, Radiation Measurements, 108, 52–58, 2018
  • Seiichi Yamamoto, Shuji Koyama, Takuya Yabe, Masataka Komori, Junki Tada, Shiori Ito, Toshiyuki Toshito , Yuho Hirata , Kenichi Watanabe , Stability and linearity of luminescence imaging of water during irradiation of proton-beams and X-ray photons lower energy than the Cerenkov light threshold, Nuclear Inst. and Methods in Physics Research, A , 883(1),48-56, 2018
  • Kouhei Nakanishi, Seiichi Yamamoto, Hiroshi Watabe, Shinji Abe, Naotoshi Fujita,
    Katsuhiko Kato、Development of a circular shape Si-PM-based detector ring for breast-dedicated PET system, Nuclear Inst. and Methods in Physics Research, A 880(1), 118-124, 2018
  • Morishita Y, Yamamoto S, Momose T, Kaneko JH, Nemoto N, Development of a new detector system to evaluate position and activity of plutonium particles in nasal cavities, Radiat Prot Dosimetry, 178(4):414-421, 2018

2017年

  • Seiichi Yamamoto, Kuniyasu Okudaira, Fumitaka Kawabata, Takayoshi Nakaya, Hiroshi Oguchi, Optical imaging of water during X-ray beam irradiations from linear accelerator, Nuclear Inst. and Methods in Physics Research, A 872 , 174–180, 2017
  • Seiichi Yamamoto, Effective radiofrequency attenuation methods to reduce the interference between PET and MRI systems, IEEE Transactions on Radiation and Plasma Medical Sciences, 1(5) 400 – 404, 2017
  • Kouhei Nakanishi, Seiichi Yamamoto, Jun Kataoka, Performance comparison of finely pixelated LYSO- and GAGG-based Si-PM gamma cameras for high resolution SPECT, Nuclear Inst. and Methods in Physics Research, A 872, 107–111, 2017
  • Seiichi Yamamoto, Luminescence imaging of water during irradiation of beta particles with energy lower than Cerenkov-light threshold, IEEE Transactions on Radiation and Plasma Medical Sciences, 1(4) 329 – 333, 2017
  • Koki Ando, Mitsutaka Yamaguchi, Seiichi Yamamoto, Toshiyuki Toshito and Naoki Kawachi, Development of a low-energy x-ray camera for the imaging of secondary electron bremsstrahlung x-ray emitted during proton irradiation for range estimation, Phys. Med. Biol. 62, 5006–5020, 2017
  • Seiichi Yamamoto, Shuji Koyama, Chiyo Yamauchi-Kawaura, Masataka Komori, Luminescence imaging of biological subjects during X-ray irradiations lower energy than Cerenkov-light threshold, Optical Review, 24, 428-435,2017
  • Masao Yoshino, Kei Kamada, Yasuhiro Shoji, Shunsuke Kurosawa, Yuui Yokota, Yuji Ohashi, Akira Yoshikawa and Seiichi Yamamoto, Development of Eu:SrI2 scintillator array for gamma-ray imaging applications, IEEE Transaction on Nuclear science, 64(7), 1647-1651, 2017
  • Fukuchi T, Okauchi T, Shigeta M, Yamamoto S, Watanabe Y, Enomoto S. Positron emission tomography with additional γ-Ray detectors for multiple-tracer imaging, Med Phys. 44(6):2257-2266, 2017
  • Eva Pratiwi, Hyun Tae Leem, Jin Ho Park, Yong Choi, Seiichi Yamamoto, Kei Kamada, Akira Yoshikawa, and Jung Yeol Yeom, Performance of a 0.4 mm Pixelated Ce:GAGG Block Detector With Digital Silicon Photomultiplier, IEEE Transactions on Radiation and Plasma Medical Sciences, 1(1), 30-35, 2017
  • Koki Ando, Miki Oka, Seiichi Yamamoto, Development of an optical lens based alpha-particle imaging system using position sensitive photomultiplier tube, Nuclear Inst. and Methods in Physics Research-A, 844, 72–76, 2017
  • Hyun Tae Leem, Yong Choi, Kyu Bom Kim, Sangwon Lee, Seiichi Yamamoto, Jung-Yeol Yeom, Performance evaluation of a sub-millimeter spatial resolution PET detector module using a digital silicon photomultiplier coupled LGSO array, Nuclear Inst. and Methods in Physics Research-A, 846 , 18–22, 2017
  • Takahiro Kobayashi, Seiichi Yamamoto, Satoshi Okumura, Jung Yeol Yeom, Kei Kamada, Akira Yoshikawa, Basic performance of Mg co-doped new scintillator used for TOF-DOI-PET systems, Nuclear Inst. and Methods in Physics Research-A, 842, 14–19, 2017

2016年

  • Kei Kamada, Yasuhiro Shoji, Vladimir V. Kochurikhin, Aya Nagura, Satoshi Okumura, Seiichi Yamamoto, Jung Yeol Yeom, Shunsuke Kurosawa, Jan Pejchal, Yuui Yokota, Yuji Ohashi, Martin Nikl, Masao Yoshino, and Akira Yoshikawa, Large Size Czochralski Growth and Scintillation Properties of Mg2+ Co-doped Ce :Gd3Ga3Al2O12, IEEE Transactions on Nuclear Science, 63(2), 443-447, 2016
  • Seiichi Yamamoto, Tadashi Watabe, Hayato Ikeda, Yasukazu Kanai, Kazuhiro Ichikawa, Motonao Nakao, Katsuhiko Kato, Jun Hatazawa, Development of a PET/OMRI combined system for simultaneous imaging of positron and free radical probes for small animals, Medical Physics, 43 (10), 5676-5684, 2016
  • Kouhei Nakanishi and Seiichi Yamamoto, Development of an angled Si-PM-based detector unit for positron emission mammography (PEM) system, Nuclear Inst. and Methods in Physics Research-A. 837, 171–177, 2016
  • Seiichi Yamamoto, Hiroshi Watabe, Tadashi Watabe, Hayato Ikeda, Yasukazu Kanai, Yoshimune Ogata, Katsuhiko Kato, Jun Hatazawa, Development of ultrahigh resolution Si-PM-based PET system using 0.32 mm pixel scintillators, Nuclear Inst. and Methods in Physics Research-A. 836, 7–12, 2016
  • Mitsutaka Yamaguchi, Yuto Nagao, Koki Ando, Seiichi Yamamoto, Toshiyuki Toshito, Jun Kataoka, Naoki Kawachi, Secondary-electron-bremsstrahlung imaging for proton therapy, Nuclear Inst. and Methods in Physics Research-A. 833), 199–207, 2016
  • Seiichi Yamamoto, Toshiyuki Toshito, Takashi Akagi, Tomohiro Yamashita, Masataka Komori, Scintillation imaging of air during proton and carbon-ion beam irradiations, Nuclear Inst. and Methods in Physics Research-A, 833(11), 149-15, 2016
  • Seiichi Yamamoto, Shuji Koyama, Masataka Komori, Toshiyuki Toshito, Luminescence imaging of water during irradiation of X-ray photons lower energy than Cerenkov light threshold, Nuclear Inst. and Methods in Physics Research-A. 832(1), 264–270, 2016
  • Yong-Seok Lee, Hyun-Tae Leem, Seiichi Yamamoto, Yong Choi , Kei Kamada, Akira Yoshikawa, Sang-Geon Park, Jung-Yeol Yeom, Digital silicon photomultiplier readout of a new fast and bright scintillation crystal (Ce:GFAG), Nuclear Inst. and Methods in Physics Research,-A 832(1), 63–67, 2016
  • Shimizu K, Yamamoto S, Matsumoto K, Hino M, Senda M, Image quality and variability for routine diagnostic FDG-PET scans in a Japanese community hospital: current status and possibility of improvement. Jpn J Radiol.; 34(7): 529-35, 2016
  • Seiichi Yamamoto, Masataka Komori, Takashi Akagi, Tomohiro Yamashita, Shuji Koyama, Yuki Morishita, Eri Sekihara and Toshiyuki Toshito, Luminescence imaging of water during carbon-ion irradiation for range estimation, Med. Phys. 43, 2455-2463, 2016
  • Seiichi Yamamoto, Mayumi Suzuki, Katsuhiko Kato, Tadashi Watabe, Hayato Ikeda, Yasukazu Kanai, Yoshimune Ogata, Jun Hatazawa, Development of gamma-photon/Cerenkov-light hybrid system for simultaneous imaging of I-131 radionuclide, Nuclear Instruments and Methods in Physics Research Section A830, 444–448, 2016
  • S. Yamamoto, M. Komori, S. Koyama, T. Toshito, Luminescence imaging of water during alpha particle irradiation, Nuclear Instruments and Methods in Physics Research Section A 819(21), 6–13, 2016
  • S. Yamamoto, T. Kobayashi, S. Okumura, J.Y. Yeom, Timing performance measurements of Si-PM-based LGSO phoswich detectors, Nuclear Instruments and Methods in Physics Research Section A 821, 101–108, 2016
  • S. Yamamoto, J. Kataoka, T. Oshima, Y. Ogata, T. Watabe, H. Ikeda, Y. Kanai, J. Hatazawa, Development of a high resolution gamma camera system using finely grooved GAGG scintillator, Nuclear Instruments and Methods in Physics Research Section A 821(11), 28–33, 2016

2015年

  • Seiichi Yamamoto, Toshiyuki Toshito, Satoshi Okumura, and Masataka Komori, Luminescence imaging of water during proton-beam irradiation for range estimation, Medical Physics, 42 (11), 6498-6506, 2015
  • S. Yamamoto , S. Okumura , N. Kato, J.Y. Yeom, Timing measurements of lutetium based scintillators combined with silicon photomultipliers for TOF-PET system, Journal of Instrumentation, 10(09):T09002-T09002, 2015
  • Yamamoto S, Okumura S, Watabe T, Ikeda H, Kanai Y, Toshito T, Komori M, Ogata Y, Kato K, Hatazawa J. Development of a prototype Open-close positron emission tomography system. Rev. Sci. Instrum.;86(8):084301, 2015
  • S. Okumura, S. Yamamoto, J. Y. Yeom, N. Shimura, H. Ishibashi, Precise timing resolution measurements of GSO scintillators with different Ce concentrations combined with silicon photomultipliers, Nuclear Instruments and Methods in Physics Research Section A, 797(11), pp.153–157, 2015
  • S. Yamamoto , T. Toshito, M. Komori, Y. Morishita, S. Okumura, M. Yamaguchi, Y. Saito, N. Kawachi, S. Fujimaki. Monitoring of positron using high-energy gamma camera for proton therapy. Ann Nucl Med. Apr;29(3):268-75, 2015
  • Kawachi N, Yin YG, Suzui N, Ishii S, Yoshihara T, Watabe H, Yamamoto S, Fujimaki S. Imaging of radiocesium uptake dynamics in a plant body by using a newly developed high-resolution gamma camera. J Environ Radioact. pii: S0265-931X(15)00127-7, 2015
  • S. Yamamoto, H. Ishibashi, Development of a three-layer phoswich alpha-beta- gamma imaging detector, Nuclear Instruments and Methods in Physics Research Section A, 785, pp.129–134, 2015
  • S. Yamamoto, T. Watabe, Y. Kanai, H. Watabe, and J. Hatazawa, Development of an Optical Fiber-Based MR Compatible Gamma Camera for SPECT/MRI Systems, IEEE Transactions on Nuclear Science, vol. 62(1), pp. 76-81, 2015
  • Y. Wada, S. Yamamoto, and Y. Watanabe, Development of a Body Shield for Small Animal PET System to Reduce Random and Scatter Coincidences, IEEE Transactions on Nuclear Science, vol. 62(1), pp. 95-100, 2015
  • S. Yamamoto, Y. Ogata, N. Kawachi, N. Suzui, Y.-G. Yin, S. Fujimaki, Ultra-high resolution of radiocesium distribution detection based on Cherenkov light imaging, Nuclear Instruments and Methods in Physics Research Section A, vol. 777, pp. 102-109, 2015
  • S. Okumura, S. Yamamoto, H. Watabe, N. Kato, H. Hamamura, Development of dual-layer GSO depth-of-interaction block detector using angled optical fiber, Nuclear Instruments and Methods in Physics Research Section A, Vol. 781, pp. 65–70, 2015
  • Y. Ogata, H. Miyahara, N. Ishigure, M. Ishihara, M. Nishio, S. Yamamoto, Development of a modified sum-peak method for activity determination of some gamma emitters, Nuclear Instruments and Methods in Physics Research Section A, vol. 775, pp. 34-40, 2015
  • Yamamoto S, Watabe T, Ikeda H, Kanai Y, Watabe H, Ogata Y, Kato K, Hatazawa J.
    Ultrahigh-resolution Cerenkov-light imaging system for positron radionuclides: potential applications and limitations. Ann Nucl Med. 28(10):961-9, 2014

2014年

  • Sassa N, Kato K, Abe S, Iwano S, Ito S, Ikeda M, Shimamoto K, Yamamoto S, Yamamoto T, Gotoh M, Naganawa S. Evaluation of 11C-choline PET/CT for primary diagnosis and staging of urothelial carcinoma of the upper urinary tract: a pilot study. Eur J Nucl Med Mol Imaging. 2014 Dec;41(12):2232-41
  • S. Yamamoto, T. Toshito, K. Fujii, Y. Morishita, S. Okumura, M. Komori, High resolution Cerenkov light imaging of induced positron distribution in proton therapy. Med. Phys. 41, 111913, 2014
  • Yamamoto S, Hamamura F, Watabe T, Ikeda H, Kanai Y, Watabe H, Kato K, Ogata Y, Hatazawa J. Development of a PET/Cerenkov-light hybrid imaging system. Med Phys. 2014 Sep;41(9):092504.
  • S. Yamamoto, T. Kobayashi, J.Y. Yeom, Y. Morishita, H. Sato, T. Endo, Y. Usuki, K. Kamada, A. Yoshikawa, Development of GAGG depth-of-interaction(DOI) block detectors based on pulse shape analysis, Nuclear Instruments and Methods in Physics Research A 767 (2014) 289–295
  • Y. Morishita, S. Yamamoto, K. Izaki, J. H. Kaneko, K. Toui, Y. Tsubota, M. Higuchi, Performance comparison of scintillators for alpha particle detectors, Nuclear Instruments and Methods in Physics Research Volume 764, 11 November 2014, Pages 383–386
  • S. Yamamoto and Y. Ogata, A compact and high efficiency GAGG well counter for radiocesium concentration measurements. Nuclear Instruments and Methods in Physics Research Section-A, Vol. 753, 19–23, 2014
  • S. Yamamoto, H. Watabe, N. Kawachi, S. Fujimaki, K. Kato, J. Hatazawa. Three-layer GSO depth-of-interaction detector for high-energy gamma camera. Nuclear Instruments and Methods in Physics Research Section A , 743, 124–129, 2014
  • Y. Morishita, S. Yamamoto, K. Izaki, J. H. Kaneko, K. Toui, and Y. Tsubota. Development of a Si-PM based alpha camera for plutonium detection in nuclear fuel facilities. Nuclear Instruments and Methods in Physics Research Section A , 747, 81–86, 2014
  • Yamamoto S, Watabe H, Kanai Y, Kato K, Hatazawa J. Development of a high-resolution YSO gamma camera system that employs 0.8-mm pixels. Ann Nucl Med. Apr;28(3):232-40, 2014
  • Ota N, Kato K, Iwano S, Ito S, Abe S, Fujita N, Yamashiro K, Yamamoto S, Naganawa S. Comparison of 18F-fluoride PET/CT, 18F-FDG PET/CT, and bone scintigraphy (planar and SPECT) in detection of bone metastases of differentiated thyroid cancer: a pilot study. Br J Radiol. 87(1034):20130444, 2014

2013年

  • Yamamoto S, Watabe H, Kanai Y, Watabe T, Kato K, Hatazawa J. Development of an ultrahigh resolution Si-PM based PET system for small animals.
    Phys Med Biol. 2013 Nov 7;58(21):7875-88
  • Yamamoto S, Ogata Y. Low background high efficiency radiocesium detection system based on positron emission tomography technology. Rev Sci Instrum. 2013 Sep;84(9):093507
  • Toita R, Kanai Y, Watabe H, Nakao K, Yamamoto S, Hatazawa J, Akashi M. Biodistribution of (125)I-labeled polymeric vaccine carriers after subcutaneous injection. Bioorg Med Chem. 2013 Sep 1;21(17):5310-5
  • Yamamoto S, Higashi T, Senda M. A GSO tweezers-type coincidence detector for tumor detection. Radiol Phys Technol. 2013 Jul;6(2):293-8
  • Yamamoto S. Basic performance evaluation of a Si-PM array-based LGSO phoswich DOI block detector for a high-resolution small animal PET system. Radiol Phys Technol. 2013 Jul;6(2):281-6.
  • J. Y. Yeom, S. Yamamoto, S.E. Derenzo, V.Ch. Spanoudaki, K. Kamada, T. Endo, and C. S. Levin, First Performance Results of Ce:GAGG Scintillation , IEEE Trans. Nucl. Sci. 60(2), pp. 988-992, 2013
  • A. Kishimoto, J. Kataoka, T. Kato, T. Miura, T. Nakamori, K. Kamada, S.Nakamura, K. Sato, Y. Ishikawa, K. Yamamura, N. Kawabata, and S. Yamamoto ,Development of a Dual-Sided Readout DOI-PET Module Using Large-Area Monolithic MPPC-Arrays, IEEE Trans. Nucl. Sci., 60(1) pp. 38-43, 2013
  • S. Yamamoto, H. Watabe, Y. Kanai, K. Kato, J. Hatazawa, Development of an ultrahigh-resolution Si-PM-based dual-head GAGG coincidence imaging system , Nuclear Instruments and Methods in Physics Research Section A , 703(1), 183–189, 2013

2012年

  • S. Yamamoto, H. Watabe, Y. Kanai, T. Watabe, M. Aoki, E. Sugiyama, K. Kato, J. Hatazawa. Development of a flexible optical fiber based high resolution integrated PET/MRI system, Med. Phys., 39(11), pp. 6660-6671, 2012
  • S. Yamamoto, H. Watabe, K. Kato, J. Hatazawa. Performance comparison of high quantum efficiency and normal quantum efficiency photomultiplier tubes and position sensitive photomultiplier tubes for high resolution PET and SPECT detectors, Med. Phys., Vol. 39, No. 11, pp.6960-6667, 2012
  • Tatsumi M, Yamamoto S, Imaizumi M, Watabe T, Kanai Y, Aoki M, Kato H, Shimosegawa E, Hatazawa J. Simultaneous PET/MR body imaging in rats: initial experiences with an integrated PET/MRI scanner. Ann Nucl Med.:26(5):444-449, 2012
  • S. Yamamoto, Watabe H, Kanai Y, Shimosegawa E, J. Hatazawa. Development of a pixelated GSO gamma camera system with tungsten parallel hole collimator for single photon imaging. Med. Phys., 39, 2, pp.581-588, 2012
  • S. Yamamoto. Investigation of depth-of-interaction (DOI) effects in single- and dual-layer block detectors by use of light sharing in scintillators. Radiological Physics and Technology 5, pp.40-45, 2012
  • S. Yamamoto, H. Watabe, Y. Kanai, T. Watabe, M. Imaizumi, E. Shimosegawa, J. Hatazawa. Development of a high sensitivity BGO well counter for small animal PET studies, Radiological Physics and Technology 5, pp.40-45, 2012
  • S. Yamamoto and J. Hatazawa. Development of an alpha/beta/gamma detector for radiation monitoring. Review of Scientific Instruments,82, pp.113503-1-113503-6, 2012
  • S. Yamamoto, H. Watabe, Y. Kanai, T. Watabe, M. Imaizumi, E. S. and J. Hatazawa. Simultaneous imaging using Si-PM-based PET and MRI for development of an integrated PET/MRI system. Phys Med Biol, 57, 2, N1-N13 2012

2011年

  • S. Yamamoto, H. Watabe, J. Hatazawa. Performance comparison of Si-PM-based block detectors with different pixel sizes for an ultrahigh-resolution small-animal PET system. Phys Med Biol. Sep 21;56(20) 227-236, 2011
  • S. Yamamoto, H. Watabe, Y. Kanai, M. Aoki, E. Sugiyama, T. Watabe, M. Imaizumi, E. S. and J. Hatazawa. Interference between PET and MRI sub-systems in a silicon-photomultiplier-based PET/MRI system. Phys Med Biol 56(13):4147-59, 2011
  • S. Yamamoto, M. Honda, T. Oohashi, K. Shimizu, M. Senda, Development of a Brain PET System, PET-Hat: A Wearable PET System for Brain Research, IEEE Trans. Nucl. Sci., vol. 58, no. 3, pp. 668-673, 2011
  • Yamamoto S, Watabe H, Kanai Y, Imaizumi M, Watabe T, Shimosegawa E, Hatazawa J.  Development of a high-resolution Si-PM-based gamma camera system. Phys Med Biol. 2011 Dec 7;56(23):7555-67.
  • S. Yamamoto, J. Satomi, T. Watabe, H. Watabe, Y. Kanai, M. Imaizumi, E. Shimosegawa, J. Hatazawa. A temperature-dependent gain control system for improving the stability of Si-PM based PET system. Phys. Med. Biol. 56, pp. 2873-2882, 2011

2010年

  • S. Yamamoto, M. Imaizumi, T. Watabe, H. Watabe, Y. Kanai, E. Shimosegawa, J. Hatazawa. Development of a Si-PM-based high-resolution PET system for small animals. Phys. Med. Biol. 55(19):5817-31, 2010
  • Y. Yanagida, A. Yoshikawa, Y. Yokota, K. Kamada, Y. Usuki, S. Yamamoto, et al. Development of Pr:LuAG Scintillator Array and Assembly for Positron Emission Mammography. IEEE Trans. Nucl. Sci., vol. 57, no. 3, pp. 1492-1495, 2010
  • S. Yamamoto, M. Imaizumi, Y. Kanai, M. Tatsumi, M. Aoki, E. Sugiyama, M. Kawakami, E. Shimosegawa, J. Hatazawa. Design and performance from an integrated PET/MRI system for small animals. Annals of Nuclear Medicine, Vol. 24, No 2, pp. 89-98, 2010
  • S. Yamamoto, M. Imaizumi, E. Shimosegawa and J. Hatazawa. Development of a compact and high spatial resolution gamma camera system using LaBr3(Ce). Nucl. Instr. Meth.-A, Vol. 622(1), pp.261-269, 2010
  • S. Yamamoto, M. Imaizumi, E. Shimosegawa, Y. Kanai, Y. Sakamoto, K. Minato, K. Shimizu, M. Senda, J. Hatazawa. A compact and high sensitivity positron detector using dual-layer thin GSO scintillators for a small animal PET blood sampling system. Phys. Med. Biol. vol. 55(13), pp. 3813-3826, 2010

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