Study on higher-order imaging method based on double photon coincidence counting using correlation in multidimensional space

2023 Fiscal Year Annual Research Report

• Project/Area Number: 22H04961
• Research Institution: The University of Tokyo
• Principal Investigator: 高橋 浩之 東京大学, 大学院工学系研究科(工学部), 教授 (70216753)
• Co-Investigator(Kenkyū-buntansha): 百瀬 敏光 東京大学, 大学院工学系研究科(工学部), 客員研究員 (20219992) ; 関野 正樹 東京大学, 大学院工学系研究科(工学部), 教授 (20401036) ; 羽場 宏光 国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 室長 (60360624) ; 鎌田 圭 東北大学, 未来科学技術共同研究センター, 准教授 (60639649) ; 島添 健次 東京大学, 大学院工学系研究科(工学部), 准教授 (70589340)
• Project Period (FY): 2022-04-27 – 2026-03-31
• Keywords: ガンマ線 / 同時計数 / 時間幅信号処理 / MRI / DPECT

Outline of Annual Research Achievements

本研究では、時間・空間・電磁場の多次元空間における高次相関を利用して、トレーサーとなる放射性核種の量・それらの置かれた環境についての局所情報を得ることを目指し、DPECT撮像システムを製作し、外部磁場発生・共鳴用のRF発生装置を組み込み、DPE-MRIを構築する。そこでIn-111等の放射性核種の核磁気共鳴・核スピン緩和時間を利用し、局所的な環境に関する情報、具体的には対象核種周辺の電場の強さ、化学状態、生体深部でのpH等の情報を得るものである。5つのサブテーマを設定し研究を進め、本年度は次の成果を得た。1) 磁場環境下コリメータ一体型シンチレータ開発：コリメータ一体型シンチレータとして、磁場に不感な金属としてタングステンを選択し、高さ30mmのタングステンコリメータ内にシンチレータを配置した構造のパラレルホール型のシンチレータモジュールを設計し、製作した。2) 画像再構成不要二光子イメージングとDPEシステム構築：パラレルホールコリメータとスリットコリメータの２種類のコリメータを組み合わせた測定系を組み上げて、マイクロチューブの測定を行い、空間分解能として、5.5 mmの値が得られ、パラレルホールコリメータ・パラレルホールコリメータの組み合わせで得られる空間分解能と同等の値となった。また1.5 Tまでの強磁場中での動作の実証も行った。3) DPE-MRI電磁場設計・製作と緩和時間計測：超常磁性酸化鉄ナノ粒子を用いた実験により、世界で初めてIn-111を用いたT2緩和時間の測定に取り組み、原理実証に成功した。4) DPE-MRI放射性核種の探索と合成： Yb-169の合成と精製を進めるとともに、新たに見出した陽電子放出核種の合成に成功した。5) DPE-MRIシステム評価：DPE-MRIシステムの評価を行うためのファントムの製作を行った。

Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

本研究は順調に進展しており、当初期待していた以上の成果が見込まれると考えている。原理実証の点では、２つのガンマ線光子の相関に注目し、平面コリメータと直線コリメータの２種類のコリメータを用いた計測を行い、検出器で測定された２個のガンマ線から平面と直線の交点として放出されたRIの位置を求めるという、画像再構成不要のイメージング法を開発し、実際にIn-111とLu-177を用い、画像再構成不要のイメージングに成功し、位置分解能として、5 mm強の値が得られた。また、In-111とLu-177という２種の異なる核種の同時測定を行い、エネルギー情報を用いて、これら２種の核種を分離し、独立に評価することが可能であることを示した。
MRIとRIのイメージング原理の融合においては、横緩和時間の計測を磁性ナノ粒子を用いて実験的に評価し、核種In-111を用いて、磁性ナノ粒子の量が増えると横緩和時間が短くなるという結果が得られた。これは核種In-111を用いたf-MRIの可能性を拓く結果であるが、当初は令和６年度に実施する予定であった成果を既に先行して実現した。さらに、核種の製造においては、当初想定していなかった核種としてTe-118の開発に成功した。これを用いて抗体やペプチドを標識することにより、体内動態を長期にわたって、PETの高い画質で計測することを可能とするため、セラノスティクスにおいて大変有用な核種となるものであると期待される。この核種の利用については抗体関連の研究者を必要とし、本研究の対象範囲を超えるものであるため、現在、本研究とは別に研究計画をたてることを検討中である。

Strategy for Future Research Activity

今後は次のように研究を推進していく予定である。
コリメータ一体型のシンチレータについてはYAPシンチレータを封止した構造のシンチレータを製作し、高分解能システムの実現に向けた開発を行う。検出器システムについては、コリメータ一体型シンチレータと組み合わせて、2 mm 分解能の全体システムの構築を行い、その後、0.8 mm分解能システムの基本設計とシステム構築を行い、磁場中で動作させる。緩和時間計測については、RFパルスを照射する機構を装置に導入することによって核スピンをマニピュレーションして、T1緩和時間の計測を行う予定である。本原理検証については、3 mm分解能のシステムを用いて実施する。緩和時間計測における磁場配置・RFの最適化を図り、マウスを用いた実験系の設計を行い、実験を実施する予定である。核種合成については、これまでに合成に成功したYb-169に加えて、Cu-67などの合成に取り組むとともに、新たな候補核種の探索を行いながら、新規核種の分離精製法の改良を続ける。なお、新規に見出したTe-118については、別途、研究体制を構築して実施することを検討している。ファントムについては、2 ㎜分解能システムの試験評価、0.8 mm分解能システムを用いた評価実験を実施する予定である。
最終的には以上の成果をとりまとめて、全体報告書を作成する予定である。

Research Products

• [Journal Article] pH dependence of perturbed angular correlation in DOTA chelated 111 In measured with ring-shape gamma-ray detectors (2024)
  • Author(s): Shimazoe Kenji、Donghwan Kim、Mineo Tomoko、Sato Takeshi、Ohta Seiichi、Tatsumi Toshifumi、Sugiyama Akira、Yamatsugu Kenzo、Nomura Sachiyo、Terabayashi Ryohei、Tomita Hideki、Sonoda Tetsu、Shigekawa Yudai、Yokokita Takuya、Uenomachi Mizuki
  • Journal Title: Interactions Volume: 245 Pages: -
  • DOI: 10.1007/s10751-024-01864-7
  • Peer Reviewed / Open Access
• [Journal Article] Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering (2024)
  • Author(s): Bartosiewicz Karol、Pejchal Jan、Kucerkova Romana、Beitlerova Alena、Babin Vladimir、Vanecek Vojtech、Kurosawa Shunsuke、Kamada Kei、Yoshikawa Akira
  • Journal Title: Optical Materials: X Volume: 22 Pages: 100295～100295
  • DOI: 10.1016/j.omx.2024.100295
  • Peer Reviewed / Open Access
• [Journal Article] Modality for estimating NMR relaxation time using perturbed angular correlation in double-photon emission nuclides (2024)
  • Author(s): Matsumoto Wataru、Feng Boyu、Tamai Yoshiki、Ueki Taisei、Kamada Kei、Uenomachi Mizuki、Tomita Hideki、Fushimi Motofumi、Shimazoe Kenji、Takahashi Hiroyuki、Sekino Masaki
  • Journal Title: AIP Advances Volume: 14 Pages: -
  • DOI: 10.1063/9.0000665
  • Peer Reviewed / Open Access
• [Journal Article] In-vivo correlations of fluorescent or radioisotope glucose-analogs in imaging cancer metabolism (2024)
  • Author(s): Lin Hongchang、Kobayashi Mariko、Kushiro Keiichiro、Yanagie Hironobu、Shimazoe Kenji、Takahashi Hiroyuki
  • Journal Title: Nuclear Medicine Communications Volume: 45 Pages: 287～294
  • DOI: 10.1097/MNM.0000000000001812
  • Peer Reviewed / Open Access
• [Journal Article] Recovery after Prolonged Disturbance of Consciousness and Repeated Cerebral Perfusion Changes in Neuronal Intranuclear Inclusion Disease (2024)
  • Author(s): Uchigami Hirokazu、Hamada Masashi、Maekawa Hirotaka、Ishiura Hiroyuki、Kodama Satoshi、Shirota Yuichiro、Takahashi Miwako、Momose Toshimitsu、Toda Tatsushi
  • Journal Title: Internal Medicine Volume: 63 Pages: 333～336
  • DOI: 10.2169/internalmedicine.1015-22
  • Peer Reviewed / Open Access
• [Journal Article] Production of 45Ti radioisotope by proton irradiation of natural scandium (2024)
  • Author(s): Ditroi F.、Takacs S.、Aikawa M.、Gantumur D.、Huang H.、Goto S.、Haba H.、Szucs Z.、Tarkanyi F.
  • Journal Title: Radiation Physics and Chemistry Volume: 218 Pages: 111572～111572
  • DOI: 10.1016/j.radphyschem.2024.111572
  • Peer Reviewed / Open Access
• [Journal Article] Activation cross sections of α-particle-induced reactions on scandium in the energy range of 22?51?MeV (2024)
  • Author(s): Aikawa Masayuki、Ebata Shuichiro、Haba Hiromitsu、Tak?cs S?ndor、Ditr?i Ferenc、Sz?cs Zolt?n
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Volume: 550 Pages: 165315～165315
  • DOI: 10.1016/j.nimb.2024.165315
  • Peer Reviewed / Open Access
• [Journal Article] Investigation of the phase diagram of the CsI-LiBr system and fabrication of the eutectic scintillator for thermal neutron detection (2024)
  • Author(s): Sasaki Rei、Kamada Kei、Yoshino Masao、Jin Kim Kyoung、Murakami Rikito、Horiai Takahiko、Yamaji Akihiro、Kurosawa Shunsuke、Yokota Yuui、Sato Hiroki、Ohashi Yuji、Hanada Takashi、Yoshikawa Akira
  • Journal Title: Journal of Crystal Growth Volume: 628 Pages: 127543～127543
  • DOI: 10.1016/j.jcrysgro.2023.127543
  • Peer Reviewed / Open Access
• [Journal Article] First Study of the PIKACHU Project: Development and Evaluation of High-Purity Gd3Ga3Al2O12:Ce Crystals for 160Gd Double Beta Decay Search (2024)
  • Author(s): Takumi Omori, Takashi Iida, Azusa Gando, Keishi Hosokawa, Kei Kamada, Keita Mizukoshi, Yasuhiro Shoji, Masao Yoshino, Ken-Ichi Fushimi, Hisanori Suzuki, Kotaro Takahashi
  • Journal Title: arXiv Volume: - Pages: -
  • DOI: 10.48550/arXiv.2402.06830
  • Peer Reviewed / Open Access
• [Journal Article] Feasibility study of one-dimensional imaging with an optical fiber for radiation dose-rate monitoring system in the decommissioning process (2024)
  • Author(s): Matsukura Daisuke、Kurosawa Shunsuke、Fujiwara Chihaya、Yamaji Akihiro、Ohashi Yuji、Yokota Yuui、Kamada Kei、Sato Hiroki、Masao Yoshino、Hanada Takashi、Murakami Rikito、Horiai Takahiko、Yoshikawa Akira、Takata Takushi、Tanaka Hiroki
  • Journal Title: Journal of Instrumentation Volume: 19 Pages: C02053～C02053
  • DOI: 10.1088/1748-0221/19/02/C02053
  • Peer Reviewed / Open Access
• [Journal Article] Effects of crystal growth rate and pressure on shape controllability in the dewetting micro-pulling-down method (2024)
  • Author(s): Murakami Rikito、Oikawa Katsunari、Kamada Kei、Itoi Shiika、Yoshikawa Akira
  • Journal Title: Journal of Crystal Growth Volume: 629 Pages: 127565～127565
  • DOI: 10.1016/j.jcrysgro.2023.127565
  • Peer Reviewed / Open Access
• [Journal Article] Crystal growth, luminescence, and scintillation properties of Er-doped La₂Hf₂O₇ single crystal (2024)
  • Author(s): Hayashi Naomoto、Yokota Yuui、Horiai Takahiko、Yamanoi Kohei、Yoshino Masao、Yamaji Akihiro、Murakami Rikito、Hanada Takashi、Sato Hiroki、Ohashi Yuji、Kurosawa Shunsuke、Kamada Kei、Sarukura Nobuhiko、Yoshikawa Akira
  • Journal Title: Japanese Journal of Applied Physics Volume: 63 Pages: 03SP15～03SP15
  • DOI: 10.35848/1347-4065/ad1e97
  • Peer Reviewed / Open Access
• [Journal Article] Development of calculation model for designing temperature characteristics of double-layered thickness-shear resonator (2024)
  • Author(s): Ohashi Yuji、Noguchi Taisei、Yokota Yuui、Murakami Rikito、Kurosawa Shunsuke、Kamada Kei、Horiai Takahiko、Yamaji Akihiro、Yoshino Masao、Yoshikawa Akira
  • Journal Title: Japanese Journal of Applied Physics Volume: 63 Pages: 03SP28～03SP28
  • DOI: 10.35848/1347-4065/ad1fb1
  • Peer Reviewed / Open Access
• [Journal Article] Relationship of single crystal growth and luminescence properties of Cr-doped gadolinium gallium garnet crystals for radiation dose-rate monitoring systems (2024)
  • Author(s): Matsukura Daisuke、Kurosawa Shunsuke、Yamaji Akihiro、Ohashi Yuji、Yokota Yuui、Kamada Kei、Sato Hiroki、Toyoda Satoshi、Yoshino Masao、Hanada Takashi、Murakami Rikito、Horiai Takahiko、Yoshikawa Akira
  • Journal Title: Journal of Crystal Growth Volume: 630 Pages: 127581～127581
  • DOI: 10.1016/j.jcrysgro.2024.127581
  • Peer Reviewed / Open Access
• [Journal Article] A triple-imaging-modality system for simultaneous measurements of prompt gamma photons, prompt x-rays, and induced positrons during proton beam irradiation (2024)
  • Author(s): Yamamoto Seiichi、Watabe Hiroshi、Nakanishi Kohei、Yabe Takuya、Yamaguchi Mitsutaka、Kawachi Naoki、Kamada Kei、Yoshikawa Akira、Miyake Masayasu、Tanaka Kazuo S、Kataoka Jun
  • Journal Title: Physics in Medicine & Biology Volume: 69 Pages: 055012～055012
  • DOI: 10.1088/1361-6560/ad25c6
  • Peer Reviewed / Open Access
• [Journal Article] A comparative study of EM-CCD and CMOS cameras for particle ion trajectory imaging (2024)
  • Author(s): Yamamoto Seiichi、Yoshino Masao、Nakanishi Kohei、Yogo Katsunori、Kamada Kei、Yoshikawa Akira、Kataoka Jun
  • Journal Title: Applied Radiation and Isotopes Volume: 204 Pages: 111143～111143
  • DOI: 10.1016/j.apradiso.2023.111143
  • Peer Reviewed / Open Access
• [Journal Article] Heat transfer in β-Ga2O3 crystal grown through a skull melting method (2024)
  • Author(s): Kakimoto Koichi、Takahashi Isao、Tomida Taketoshi、Kochurikhin Vladimir V.、Kamada Kei、Nakano Satoshi、Yoshikawa Akira
  • Journal Title: Journal of Crystal Growth Volume: 629 Pages: 127553～127553
  • DOI: 10.1016/j.jcrysgro.2023.127553
  • Peer Reviewed / Open Access
• [Journal Article] Growth of Mg2Si thermoelectric eutectics by unidirectional solidification (2024)
  • Author(s): Hayashi Naomoto、Yokota Yuui、Horiai Takahiko、Yoshino Masao、Yamaji Akihiro、Murakami Rikito、Hanada Takashi、Sato Hiroki、Ohashi Yuji、Kurosawa Shunsuke、Kamada Kei、Yoshikawa Akira
  • Journal Title: Journal of Crystal Growth Volume: 627 Pages: 127533～127533
  • DOI: 10.1016/j.jcrysgro.2023.127533
  • Peer Reviewed / Open Access
• [Journal Article] Development of an event-by-event based Li?ZnS(Ag) neutron imaging detector with selective neutron detection capability (2024)
  • Author(s): Yamamoto Seiichi、Yoshino Masao、Nakanishi Kohei、Kamada Kei、Yoshikawa Akira、Tanaka Hiroki、Kataoka Jun
  • Journal Title: Applied Radiation and Isotopes Volume: 204 Pages: 111084～111084
  • DOI: 10.1016/j.apradiso.2023.111084
  • Peer Reviewed / Open Access
• [Journal Article] Study of twisting of β-Ga2O3 crystals based on optical absorption and thermal conductivity anisotropy in the crystals grown by the Czochralski method (2024)
  • Author(s): Kakimoto Koichi、Takahashi Isao、Tomida Taketoshi、Kochurikhin Vladimir V.、Kamada Kei、Nakano Satoshi、Yoshikawa Akira
  • Journal Title: Journal of Crystal Growth Volume: 628 Pages: 127550～127550
  • DOI: 10.1016/j.jcrysgro.2023.127550
  • Peer Reviewed / Open Access
• [Journal Article] Fabrication and Properties for Thermal Neutron Detection of 6LiCl/Rb2CeCl5 Eutectic Scintillator (2024)
  • Author(s): Sasaki Rei、Kamada Kei、Yoshino Masao、Kim Kyoung Jin、Murakami Rikito、Horiai Takahiko、Yamaji Akihiro、Kurosawa Shunsuke、Yokota Yuui、Sato Hiroki、Ohashi Yuji、Hanada Takashi、Yoshikawa Akira
  • Journal Title: Crystals Volume: 14 Pages: 154～154
  • DOI: 10.3390/cryst14020154
  • Peer Reviewed / Open Access
• [Journal Article] Progress on double photon coincidence imaging with 67Cu and 169Yb (2023)
  • Author(s): K. Shimazoe, M. Uenomachi, H. Takahashi, Y. Shigekawa, A. Nambu, X. Yin, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 110
  • Peer Reviewed
• [Journal Article] Simultaneous multi-nuclide imaging via reconstruction-free double-photon emission coincidence imaging method with parallel hole collimator and slat collimator (2023)
  • Author(s): Yan Linlin、Uenomachi Mizuki、Ueki Taisei、Kim Donghwan、Shimazoe Kenji、Takahashi Hiroyuki、Kamada Kei、Shigekawa Yudai、Nambu Akihiro、Yin Xiaojie、Wang Yang、Haba Hiromitsu
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume: 1053 Pages: 168305～168305
  • DOI: 10.1016/j.nima.2023.168305
  • Peer Reviewed / Open Access
• [Journal Article] Precession measurement of perturbed angular correlation in double-photon emission nuclides with magnetic field for novel RI imaging method (2023)
  • Author(s): Ueki Taisei、Uenomachi Mizuki、Shimazoe Kenji、Tomita Hideki、Kamada Kei、Takahashi Hiroyuki
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume: 1050 Pages: 168122～168122
  • DOI: 10.1016/j.nima.2023.168122
  • Peer Reviewed / Open Access
• [Journal Article] Prototype fabrication of optical-guiding Tl:CsI crystal scintillators and investigation of the crystallization process (2023)
  • Author(s): Yajima Ryuga、Kamada Kei、Murakami Rikito、Kutsuzawa Naoko、Sasaki Rei、Yoshino Masao、Horiai Takahiko、Kim Kyoung Jin、Kochurikhin Vladimir. V.、Yamaji Akihiro、Kurosawa Shunsuke、Yokota Yuui、Sato Hiroki、Toyoda Satoshi、Ohashi Yuji、Hanada Takashi、Yoshikawa Akira
  • Journal Title: Japanese Journal of Applied Physics Volume: 62 Pages: SC1064～SC1064
  • DOI: 10.35848/1347-4065/acb3d1
  • Peer Reviewed / Open Access
• [Journal Article] Novel optical-guiding crystal scintillator composed of an Eu-doped SrI2 core and glass cladding (2023)
  • Author(s): Yajima Ryuga、Kamada Kei、Takizawa Yui、Kutsuzawa Naoko、Sasaki Rei、Yoshino Masao、Horiai Takahiko、Murakami Rikito、Kim Kyoung Jin、Kochurikhin Vladimir V.、Yamaji Akihiro、Kurosawa Shunsuke、Yokota Yuui、Sato Hiroki、Toyoda Satoshi、Ohashi Yuji、Takashi Hanada、Yoshikawa Akira
  • Journal Title: Ceramics International Volume: 49 Pages: 41259～41263
  • DOI: 10.1016/j.ceramint.2022.12.264
  • Peer Reviewed / Open Access
• [Journal Article] Improvement of double photon emission Compton imaging using angular and polarization correlations in cascade photons (2023)
  • Author(s): Kim Donghwan、Ueki Taisei、Rahman Agus Nur、Yan Linlin、Uenomachi Mizuki、Shimazoe Kenji、Takahashi Hiroyuki
  • Journal Title: Journal of Instrumentation Volume: 18 Pages: C05012～C05012
  • DOI: 10.1088/1748-0221/18/05/C05012
  • Peer Reviewed / Open Access
• [Journal Article] Case report: Atomoxetine improves chronic pain with comorbid post-traumatic stress disorder and attention deficit hyperactivity disorder (2023)
  • Author(s): Kasahara Satoshi、Takahashi Miwako、Morita Taito、Matsudaira Ko、Sato Naoko、Momose Toshimitsu、Niwa Shin-Ichi、Uchida Kanji
  • Journal Title: Frontiers in Psychiatry Volume: 14 Pages: -
  • DOI: 10.3389/fpsyt.2023.1221694
  • Peer Reviewed / Open Access
• [Journal Article] Case Report: Guanfacine and methylphenidate improved chronic lower back pain in autosomal dominant polycystic kidney disease with comorbid attention deficit hyperactivity disorder and autism spectrum disorder (2023)
  • Author(s): Kasahara Satoshi、Kanda Shoichiro、Takahashi Miwako、Fujioka Mao、Morita Taito、Matsudaira Ko、Sato Naoko、Hattori Motoshi、Momose Toshimitsu、Niwa Shin-Ichi、Uchida Kanji
  • Journal Title: Frontiers in Pediatrics Volume: 11 Pages: -
  • DOI: 10.3389/fped.2023.1283823
  • Peer Reviewed / Open Access
• [Journal Article] Case report: Remission of chronic low back pain and oral dysesthesia comorbid with attention deficit/hyperactivity disorder by treatment with atomoxetine and pramipexole (2023)
  • Author(s): Kasahara Satoshi、Kato Yuichi、Takahashi Miwako、Matsudaira Ko、Sato Naoko、Niwa Shin-Ichi、Momose Toshimitsu、Uchida Kanji
  • Journal Title: Frontiers in Pain Research Volume: 4 Pages: -
  • DOI: 10.3389/fpain.2023.1159134
  • Peer Reviewed / Open Access
• [Journal Article] Activation cross sections of alpha-particle-induced reactions on natural tungsten for osmium and rhenium radionuclides (2023)
  • Author(s): Ukon Naoyuki、Aikawa Masayuki、Saito Moemi、Hagiwara Masayuki、Yashima Hiroshi、Komori Yukiko、Haba Hiromitsu、Tak?cs S?ndor、Ditr?i Ferenc、Sz?cs Zolt?n
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Volume: 539 Pages: 95～101
  • DOI: 10.1016/j.nimb.2023.03.032
  • Peer Reviewed / Open Access
• [Journal Article] Incomplete fusion reaction producing Pa nuclides in the ²³²Th + ⁷Li reaction (2023)
  • Author(s): Teranishi Kakeru、Morita Ryoga、Hayakawa Yuta、Sakaguchi Aya、Nakajima Akihisa、Komori Yukiko、Yokokita Takuya、Mori Daiki、Haba Hiromitsu、Yokoyama Akihiko
  • Journal Title: Radiochimica Acta Volume: 111 Pages: 589～596
  • DOI: 10.1515/ract-2022-0093
  • Peer Reviewed
• [Journal Article] Activation cross sections of deuteron-induced reactions on natural rhenium up to 23 MeV (2023)
  • Author(s): Aikawa Masayuki、Toyoeda Yutaka、Gantumur Damdinsuren、Ukon Naoyuki、Ebata Shuichiro、Haba Hiromitsu、Tak?cs S?ndor、Ditr?i Ferenc、Sz?cs Zolt?n
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Volume: 543 Pages: 165093～165093
  • DOI: 10.1016/j.nimb.2023.165093
  • Peer Reviewed / Open Access
• [Journal Article] Activation cross section measurement of alpha-particle induced nuclear reactions on tantalum (2023)
  • Author(s): Takacs S.、Ditroi F.、Szucs Z.、Aikawa M.、Haba H.、Toyoeda Y.、Damdinsuren G.、Ebata S.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Volume: 545 Pages: 165127～165127
  • DOI: 10.1016/j.nimb.2023.165127
  • Peer Reviewed / Open Access
• [Journal Article] Solvent extraction following oxidation of astatine for the use of a 211Rn-211At generator (2023)
  • Author(s): Shin Yuki、Maruyama Shunpei、Kawasaki Kohei、Aoi Keito、Washiyama Kohshin、Nishinaka Ichiro、Yano Shinya、Haba Hiromitsu、Yokoyama Akihiko
  • Journal Title: Journal of Radioanalytical and Nuclear Chemistry Volume: 333 Pages: 403～409
  • DOI: 10.1007/s10967-023-09282-9
  • Peer Reviewed / Open Access
• [Journal Article] Design of radiation shield for RI production beam line (2023)
  • Author(s): A. Akashio, K. Tanaka, N. Shigyo, K. Sugihara, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: S27
  • Peer Reviewed
• [Journal Article] Development of 211Rn/211At generator through liquid phase recovery of radon and ionic liquid extraction of astatine (2023)
  • Author(s): Y. Nagai, Y. Ganaha, A. Yokoyama, K. Washiyama, I. Nishinaka, X. Yin, A. Nambu, Y. Shigekawa, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 149
  • Peer Reviewed
• [Journal Article] The feasibility study for the medical radioisotope: astatine-211 production by the gas cell-based laser ionization technique (2023)
  • Author(s): T. Sonoda, T. Nakashita, H. Haba, H. Tomita, and H. Ishiyama
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 150
  • Peer Reviewed
• [Journal Article] Progress of 211At production at the RIKEN AVF cyclotron (2023)
  • Author(s): X. Yin, N. Sato, A. Nambu, Y. Shigekawa, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 151-152
  • Peer Reviewed
• [Journal Article] Activation cross sections of 28Mg via α-particle-induced reaction on Al (2023)
  • Author(s): M. Aikawa, H. Huang, G. Damdinsuren, S. Ebata, H. Haba, S. Takacs, F. Ditroi, and Z. Szucs
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 165-166
  • Peer Reviewed
• [Journal Article] Production cross sections of 47Sc via α-particle induced reactions on natCa (2023)
  • Author(s): M. Aikawa, Y. Hanada, D. Ichinkhorloo, H. Haba, S. Takacs, F. Ditroi, and Z. Szucs
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 167-168
  • Peer Reviewed
• [Journal Article] Production cross sections of 52gMn in α-particle-induced reactions on natV (2023)
  • Author(s): G. Damdinsuren, M. Aikawa, Kh. Tegshjargal, N. Erdene, S. Ebata, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 169-170
  • Peer Reviewed
• [Journal Article] Activation cross sections of deuteron-induced reactions on natCr up to 24 MeV (2023)
  • Author(s): H. Huang, M. Aikawa, Y. Hanada, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 171
  • Peer Reviewed
• [Journal Article] Activation cross sections of alpha-particle-induced reactions on natural lanthanum up to 50 MeV (2023)
  • Author(s): S. Ebata, M. Aikawa, G. Damdinsuren, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 172
  • Peer Reviewed
• [Journal Article] Reexamination of production cross sections of 153Sm via α-particle induced reactions on natNd (2023)
  • Author(s): M. Aikawa, M. Sakaguchi, N. Ukon, Y. Komori, H. Haba, N. Otuka, and S. Takacs
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 173
  • Peer Reviewed
• [Journal Article] Activation cross sections of 7Li-induced reactions on natSm (2023)
  • Author(s): M. Aikawa, G. Damdinsuren, S. Ebata, N. Ukon, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 174
  • Peer Reviewed
• [Journal Article] Activation cross sections of deuteron-induced reactions on natural gadolinium up to 24 MeV (2023)
  • Author(s): D. Ichinkhorloo, M. Aikawa, Ts. Zolbadral, Y. Komori, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 175
  • Peer Reviewed
• [Journal Article] Production yields of 165Er and 169Yb via 24-MeV deuteron induced reactions (2023)
  • Author(s): Y. Shigekawa, A. Nambu, Y. Kumakura, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 176-177
  • Peer Reviewed
• [Journal Article] Activation cross sections of α-particle-induced reactions on natTa (2023)
  • Author(s): S. Takacs, F. Ditroi, Z. Szucs, M. Aikawa, G. Damdinsuren, H. Haba, and S. Ebata
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 178-179
  • Peer Reviewed
• [Journal Article] Activation cross sections of deuteron-induced reactions on natRe (2023)
  • Author(s): M. Aikawa, Y. Toyoeda, G. Damdinsuren, S. Ebata, H. Haba, S. Takacs, F. Ditroi, and Z. Szucs
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 180
  • Peer Reviewed
• [Journal Article] Production cross sections of 189gIr in α-particle-induced reactions on natRe (2023)
  • Author(s): G. Damdinsuren, M. Aikawa, S. Ebata, H. Haba, S. Takacs, F. Ditroi, and Z. Szucs
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 181-182
  • Peer Reviewed
• [Journal Article] Production cross sections of 198gAu in proton-induced reactions on natPt (2023)
  • Author(s): G. Damdinsuren, M. Aikawa, Kh. Tegshjargal, N. Erdene, N. Ukon, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 183-184
  • Peer Reviewed
• [Journal Article] Production cross sections of 211Rn via 7Li-induced reaction on 209Bi (2023)
  • Author(s): N. Ukon, K. Washiyama, M. Aikawa, G. Damdinsuren, S. Ebata, and H. Haba
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 185
  • Peer Reviewed
• [Journal Article] Fee-based activities performed by the RI application research group (2023)
  • Author(s): A. Nambu, H. Haba, A. Yoshida, K. Watanabe, and T. Kambara
  • Journal Title: RIKEN Accel. Prog. Rep. Volume: 56 Pages: 216
  • Peer Reviewed
• [Journal Article] Compton Camera Arrangement With a Monolithic LaBr₃(Ce) Scintillator and Pixelated GAGG Detector for Medical Imaging (2023)
  • Author(s): Liprandi Silvia、Takyu Sodai、Safari Mohammad、Binder Tim、Dedes George、Kamada Kei、Kawula Maria、Mohammadi Akram、Nishikido Fumihiko、Valencia-Lozano Ingrid I.、Viegas Rita、Yamaya Taiga、Parodi Katia、Thirolf Peter G.
  • Journal Title: IEEE Transactions on Radiation and Plasma Medical Sciences Volume: 7 Pages: 764～774
  • DOI: 10.1109/TRPMS.2023.3282838
  • Peer Reviewed / Open Access
• [Journal Article] Vesicular Integral-Membrane Protein 36 Is Involved in the Selective Secretion of Fucosylated Proteins into Bile Duct-like Structures in HepG2 Cells (2023)
  • Author(s): Muranaka Mizuki、Takamatsu Shinji、Ouchida Tsunenori、Kanazawa Yuri、Kondo Jumpei、Nakagawa Tsutomu、Egashira Yuriko、Fukagawa Koji、Gu Jianguo、Okamoto Toru、Kamada Yoshihiro、Miyoshi Eiji
  • Journal Title: International Journal of Molecular Sciences Volume: 24 Pages: 7037～7037
  • DOI: 10.3390/ijms24087037
  • Peer Reviewed / Open Access
• [Journal Article] High-toughness/resistivity ruthenium-based refractory alloy wires (2023)
  • Author(s): Murakami Rikito、Kamada Kei、Umetsu Kenichi、Yoshioka Takashi、Oikawa Katsunari、Kido Junji、Yoshikawa Akira
  • Journal Title: International Journal of Refractory Metals and Hard Materials Volume: 114 Pages: 106235～106235
  • DOI: 10.1016/j.ijrmhm.2023.106235
  • Peer Reviewed / Open Access
• [Journal Article] Development and fabrication of a thick Ti- H target for the experiment at intermediate energies (2023)
  • Author(s): Miki K.、Utsuki Y.、Hara M.、Hatano Y.、Imai N.、Inoue M.、Itoh M.、Kameya K.、Kitayama S.、Maruta Y.、Matsuda Y.、Saito Y.、Sakai D.、Uesaka T.、Umetsu H.、Urayama R.、Wang J.、Kamada K.、Shoji Y.、Yoshikawa A.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume: 1056 Pages: 168583～168583
  • DOI: 10.1016/j.nima.2023.168583
  • Peer Reviewed / Open Access
• [Journal Article] The Correlation Between Scatter Detector Performance and Spatial Resolution in a Ring-Shaped Compton Imaging System (2023)
  • Author(s): Takyu Sodai、Tashima Hideaki、Nishikido Fumihiko、Kamada Kei、Yoshikawa Akira、Yamaya Taiga
  • Journal Title: IEEE Transactions on Radiation and Plasma Medical Sciences Volume: 7 Pages: 570～579
  • DOI: 10.1109/TRPMS.2023.3262814
  • Peer Reviewed / Open Access
• [Journal Article] 3D calculation studies of dislocation density in a β-Ga2O3 crystal grown by vertical Bridgman method (2023)
  • Author(s): Kakimoto Koichi、Takahashi Isao、Tomida Taketoshi、Kamada Kei、Yao Yongzhao、Nakano Satoshi、Yoshikawa Akira
  • Journal Title: Journal of Crystal Growth Volume: 609 Pages: 127126～127126
  • DOI: 10.1016/j.jcrysgro.2023.127126
  • Peer Reviewed / Open Access
• [Journal Article] Sub-micrometer real-time imaging of trajectory of alpha particles using GAGG plate and CMOS camera (2023)
  • Author(s): Yamamoto Seiichi、Yoshino Masao、Nakanishi Kohei、Yogo Katsunori、Kamada Kei、Yoshikawa Akira、Koshikawa Nanase、Kataoka Jun
  • Journal Title: Journal of Instrumentation Volume: 18 Pages: T10003～T10003
  • DOI: 10.1088/1748-0221/18/10/T10003
  • Peer Reviewed / Open Access
• [Journal Article] Ultrahigh resolution real-time trajectory imaging of neutron induced particles in a scintillator from lithium-6 plate (2023)
  • Author(s): Yamamoto Seiichi、Yoshino Masao、Nakanishi Kohei、Kamada Kei、Yoshikawa Akira、Kataoka Jun
  • Journal Title: Journal of Instrumentation Volume: 18 Pages: T10002～T10002
  • DOI: 10.1088/1748-0221/18/10/T10002
  • Peer Reviewed / Open Access
• [Journal Article] Growth and Scintillation Properties of ⁶Li Containing Ce:LaCl₃-Based Eutectic Scintillator for Neutron Detection (2023)
  • Author(s): Sasaki Rei、Kim Kyoung Jin、Kamada Kei、Yajima Ryuga、Kutsuzawa Naoko、Yoshino Masao、Murakami Rikito、Horiai Takahiko、Yamaji Akihiro、Kurosawa Shunsuke、Yokota Yuui、Sato Hiroki、Toyoda Satoshi、Ohashi Yuji、Hanada Takashi、Takahashi Isao、Tomida Taketoshi、Kochurikhin Vladimir V.、Yoshikawa Akira
  • Journal Title: IEEE Transactions on Nuclear Science Volume: 70 Pages: 1337～1341
  • DOI: 10.1109/TNS.2023.3271639
  • Peer Reviewed / Open Access
• [Journal Article] Tl-Doped CsI/?LiBr Scintillator for Thermal Neutron Detection With Ultrahigh Light Yield (2023)
  • Author(s): Yajima Ryuga、Kamada Kei、Yoshino Masao、Sasaki Rei、Horiai Takahiko、Murakami Rikito、Kim Kyoung Jin、Kochurikhin Vladimir V.、Ohashi Yuji、Yamaji Akihiro、Kurosawa Shunsuke、Yokota Yuui、Sato Hiroki、Toyoda Satoshi、Hanada Takashi、Yoshikawa Akira
  • Journal Title: IEEE Transactions on Nuclear Science Volume: 70 Pages: 1331～1336
  • DOI: 10.1109/TNS.2023.3278465
  • Peer Reviewed / Open Access
• [Journal Article] Simultaneous imaging of luminescence and prompt x-rays during irradiation with spot-scanning proton beams at clinical dose level (2023)
  • Author(s): Yamamoto Seiichi、Yamashita Tomohiro、Kobashi Yusuke、Yabe Takuya、Akagi Takashi、Yamaguchi Mitsutaka、Kawachi Naoki、Kamada Kei、Yoshikawa Akira、Kataoka Jun
  • Journal Title: Biomedical Physics & Engineering Express Volume: 9 Pages: 045031～045031
  • DOI: 10.1088/2057-1976/acdf61
  • Peer Reviewed / Open Access
• [Journal Article] Crucible-Free Growth of Bulk b-Ga2O3 Single-Crystal Scintillator under Oxidizing Atmosphere (2023)
  • Author(s): Kamada Kei、Sasaki Rei、Tomida Taketoshi、Takahashi Isao、Yoshino Masao、Horiai Takahiko、Murakami Rikito、Kochurikhin Vladimir、Shoji Yasuhiro、Kakimoto Koichi、Yoshikawa Akira
  • Journal Title: Crystals Volume: 13 Pages: 921～921
  • DOI: 10.3390/cryst13060921
  • Peer Reviewed / Open Access
• [Journal Article] A high-resolution real-time imaging system for observing the trajectories of neutron induced particles in a scintillator (2023)
  • Author(s): Yamamoto Seiichi、Yoshino Masao、Nakanishi Kohei、Kamada Kei、Yoshikawa Akira、Kataoka Jun
  • Journal Title: Journal of Instrumentation Volume: 18 Pages: T06009～T06009
  • DOI: 10.1088/1748-0221/18/06/T06009
  • Peer Reviewed / Open Access
• [Journal Article] Hybrid imaging of prompt x-rays and induced positrons using a pinhole gamma camera during and after irradiation of protons (2023)
  • Author(s): Yamamoto Seiichi、Watabe Hiroshi、Nakanishi Kohei、Yabe Takuya、Yamaguchi Mitsutaka、Kawachi Naoki、Kamada Kei、Yoshikawa Akira、Islam Md Rafiqul、Miyake Masayasu、Tanaka Kazuo S、Kataoka Jun
  • Journal Title: Physics in Medicine & Biology Volume: 68 Pages: 115015～115015
  • DOI: 10.1088/1361-6560/acd2a2
  • Peer Reviewed / Open Access
• [Journal Article] Development of an ultrahigh resolution real time alpha particle imaging system for observing the trajectories of alpha particles in a scintillator (2023)
  • Author(s): Yamamoto Seiichi、Yoshino Masao、Kamada Kei、Yajima Ryuga、Yoshikawa Akira、Nakanishi Kohei、Kataoka Jun
  • Journal Title: Scientific Reports Volume: 13 Pages: -
  • DOI: 10.1038/s41598-023-31748-9
  • Peer Reviewed / Open Access
• [Journal Article] Prompt X-ray imaging during irradiation with spread-out Bragg peak (SOBP) beams of carbon ions (2023)
  • Author(s): Yamamoto Seiichi、Yabe Takuya、Akagi Takashi、Yamaguchi Mitsutaka、Kawachi Naoki、Kamada Kei、Yoshikawa Akira、Kataoka Jun
  • Journal Title: Physica Medica Volume: 109 Pages: 102592～102592
  • DOI: 10.1016/j.ejmp.2023.102592
  • Peer Reviewed / Open Access
• [Journal Article] Bulk Single-Crystal Growth of Ce/Gd₃(Al,Ga)₅O₁₂ from Melt without a Precious Metal Crucible by Pulling from a Cold Container (2023)
  • Author(s): Akira Yoshikawa、Vladimir Kochurikhin、Masao Yoshino、Rikito Murakami、Taketoshi Tomida、Isao Takahashi、Takahiko Horiai、Kei Kamada、Yasuhiro Shoji、Hiroki Sato、Romana Kucerkova、Alena Beitlerova、Martin Nikl
  • Journal Title: Crystal Growth & Design Volume: 23 Pages: 2048～2054
  • DOI: 10.1021/acs.cgd.2c00951
  • Peer Reviewed / Open Access
• [Presentation] ２光子ガンマ線の多次元空間の相関を用いた高次イメージング (2024)
  • Author(s): 高橋浩之, 島添健次, 関野正樹, 百瀬敏光, 鎌田圭，羽場宏光
  • Organizer: 第71回応用物理学会春季学術講演会
• [Presentation] ２光子ガンマ線の角度相関によるNMR化学シフトを用いたpH計測手法の検討 (2024)
  • Author(s): 松本渉,玉井良樹,封博宇, 上木太晟,伏見幹史,島添健次,高橋浩之,関野正樹
  • Organizer: 令和6年電気学会全国大会
• [Presentation] Production and applications of radioisotopes at RIKEN RI Beam Factory -Search for new elements through therapy of cancer- (2024)
  • Author(s): H. Haba
  • Organizer: The 1st Conference of Accelerator-Based Science and Technology
  • Int'l Joint Research / Invited
• [Presentation] Angular Correlation Measurement with Compton-PET for Information on Local Environment (2023)
  • Author(s): D. Kim, M. Uenomachi, K. Shimazoe, H. Takahashi, K. Kamada, H. Tomita
  • Organizer: IEEE NSS MIC RTSD 2023
  • Int'l Joint Research
• [Presentation] A modality for estimating the NMR relaxation time using angular correlation between successive gamma rays (2023)
  • Author(s): W. Matsumoto, F. Boyu, Y. Tamai, T. Ueki, M. Fushimi, K. Shimazoe, H.Takahashi and M. Sekino
  • Organizer: 68th Annual Conference on Magnetism and Magnetic Materials
  • Int'l Joint Research
• [Presentation] Study on magnetic field and pH response with angular correlation measurement of Yb-169 for double photon coincidence imaging (2023)
  • Author(s): B. Feng, K. Shimazoe, D. Kim, Y. Shigekawa, A. Nambu, H. Haba, H. Mohammad, Q. Zhu, M. Uenomachi, H. Tomita, H. Takahashi
  • Organizer: 13th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD13)
  • Int'l Joint Research
• [Presentation] A novel CeCl3/NaCl/SrCl2 ternary eutectic scintillator for fast and high resolution radiation imaging applications (2023)
  • Author(s): Kei KAMADA
  • Organizer: 9th International Symposium on Optical Materials (IS-OM'9)
  • Int'l Joint Research / Invited
• [Presentation] Production and applications of radioisotopes at RIKEN RI Beam Factory 'Search for new elements through therapy of cancer' (2023)
  • Author(s): H. Haba
  • Organizer: 5th International Conference on "Physics for Sustainable Development & Technology” (ICPSDT-2023)
  • Int'l Joint Research / Invited
• [Presentation] ２光子ガンマ線の多次元空間の相関を用いた高次イメージング法の研究 (2023)
  • Author(s): 高橋 浩之、島添 健次、関野 正樹、 鎌田 圭、羽場 宏光、百瀬 敏光
  • Organizer: 第83回応用物理学会秋季学術講演会
• [Presentation] 169Tm(d,2n)169Yb反応による169Ybの製造 (2023)
  • Author(s): 南部明弘, 重河優大, 殷小杰, 臼田祥子, 羽場宏光
  • Organizer: 第60回アイソトープ・放射線研究発表会
• [Presentation] 光導波型シンチレータの組織制御および大口径化の検討 (2023)
  • Author(s): 鎌田 圭、沓澤 直子、薄 善行、佐々木 玲、吉野 将 生、白紙 悠之、堀合 毅彦、村上 力輝斗、吉川 彰
  • Organizer: 第84回 応用物理学会 秋季学術講演会
• [Presentation] Pr3+添加 (La, Y) 2Si2O7バルク単結晶の光学およびシンチレーション特性 (2023)
  • Author(s): 阿部 柚佳、堀合 毅彦、横田 有 為、吉野 将生、村上 力輝斗、花田 貴、山路 晃広、佐藤 浩樹、大橋 雄二、黒澤 俊介、鎌田 圭、吉川 彰
  • Organizer: 第84回 応用物理学会 秋季学術講演会
• [Presentation] A novel method for estimating relaxation time using angular correlation between two gamma ray photons (2023)
  • Author(s): 松本渉, 上木太晟, 伏⾒幹史, 島添健次, 高橋浩之, 関野正樹
  • Organizer: 第51回日本磁気共鳴医学会大会
• [Presentation] RI製造の現状と施設への期待 (2023)
  • Author(s): 羽場宏光
  • Organizer: J-PARC陽子照射施設検討に関する研究会
  • Invited
• [Presentation] ラジオアイソトープの製造と応用～新元素の探索からがん治療まで～ (2023)
  • Author(s): 羽場宏光
  • Organizer: 短寿命RI 利用研究シンポジウム
  • Invited
• [Presentation] アルファ線核医学治療用アスタチン-211の大規模製造装置の開発 (2023)
  • Author(s): 安良田寛，栗原嵩司，中村伸悟，佐藤望，殷小杰，南部明弘，重河優大，荒井秀幸，長澤豊，羽場宏光
  • Organizer: 第20回日本加速器学会年会
• [Presentation] サイクロトロンを用いた医療用ラジオアイソトープの製造 (2023)
  • Author(s): 羽場宏光
  • Organizer: 日本物理学会第78回年次大会
  • Invited
• [Presentation] Production of astatine-211 for targeted α-particle therapy at RIBF (2023)
  • Author(s): H. Haba
  • Organizer: 8th High Power Targetry Workshop
  • Invited
• [Presentation] 理研におけるラジオアイソトープの製造と応用～新元素の探索からがん治療まで～ (2023)
  • Author(s): 羽場宏光
  • Organizer: 日本量子医科学会第3回学術大会
  • Invited
• [Presentation] Progress of 211At production at the RIKEN AVF cyclotron (2023)
  • Author(s): 殷小杰，佐藤望，重河優大，南部明弘，羽場宏光
  • Organizer: 第60回アイソトープ・放射線研究発表会
• [Presentation] アルファ線核医学治療用アスタチン-211の大規模製造装置の開発 (2023)
  • Author(s): 安良田寛, 栗原嵩司, 中村伸悟, 佐藤望, 殷小杰, 南部明弘, 重河優大, 金山洋介, 荒井秀幸, 長澤 豊, 羽場宏光
  • Organizer: 日本放射化学討論会第67回討論会
• [Presentation] Molecular sensing and imaging through perturbed angular correlation in nuclear medicine. (2023)
  • Author(s): Kenji Shimazoe
  • Organizer: International Conference on Hyperfine Interactions and their Applications(HYPERFINE2023)
  • Invited
• [Presentation] Nuclear medical imaging based on entangled photon pair (2023)
  • Author(s): Kenji Shimazoe
  • Organizer: International workshop "Positronium - from Quantum Physics to Medical Applications"
  • Int'l Joint Research / Invited
• [Presentation] Study on magnetic field and pH response with angular correlation measurement of Yb-169 for double photon coincidence imaging (2023)
  • Author(s): Boyu Feng, Kenji Shimazoe, Donghwan Kim, Yudai Shigekawa, Akihiro Nambu, Hiromitsu Haba, Hamdan Mohammad, Qinghong Zhu, Mizuki Uenomachi, Hideki Tomita, Hiroyuki Takahashi
  • Organizer: 13th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD13)
  • Int'l Joint Research
• [Presentation] Angular Correlation Measurement with Compton-PET for Information on Local Environment (2023)
  • Author(s): D. Kim, M. Uenomachi, K. Shimazoe, H. Takahashi, K. Kamada, H. Tomita
  • Organizer: IEEE NSS MIC RTSD 2023
  • Int'l Joint Research
• [Presentation] 放射線を視る。放射線で診る。 (2023)
  • Author(s): 島添 健次
  • Organizer: 第3回SITワークショップ
  • Invited
• [Presentation] 169Yb の角度相関の測定と磁場応答の研究 (2023)
  • Author(s): 封 博宇、島添 健次、上ノ町 水紀、高橋 浩之、重河 優大、鎌田 圭、南部 明弘、羽場 宏光、富田 英生、朱 慶紅、金 東煥
  • Organizer: 第84回応用物理学会秋季学術講演
• [Presentation] Relationship of Single Crystal Growth and Luminescence Properties of Cr-dopedGadolinium Gallium Garnet Crystals for Radiation Dose-Rate Monitoring Systems (2023)
  • Author(s): Daisuke. Matsukura, Shunsuke. Kurosawa, Akihiro. Yamaji, Yuji. Ohashi,Yuui. Yokota, Kei. Kamada, Hiroki. Sato, Satoshi. Toyoda, Masao. Yoshino, Takashi. Hanada, Rikito. Murakami, Takahiko. Horiai, Akira. Yoshikawa
  • Organizer: The International Conference on Crystal Growth and Epitaxy-ICCGE-20
  • Int'l Joint Research
• [Presentation] Investigation of shape control criteria for wire fabrication of alloys by the dewetting micro-pulling-down method (poster) (2023)
  • Author(s): Rikito Murakami , Katsunari Oikawa , Kei Kamada , Akira Yoshikawa
  • Organizer: The International Conference on Crystal Growth and Epitaxy-ICCGE-20
• [Presentation] Effect of oxygen concentration during growth on crystalline quality of b-Ga 2 O 3 crystals grown by crucible free growth techniques(Oral) (2023)
  • Author(s): Isao Takahashi, Vladimir Kochurikhin , Takahiko Horiai, Taketoshi Tomida , Takamasa Sugawara , Kei Kamada, Koichi Kakimoto and Akira Yoshikawa
  • Organizer: The International Conference on Crystal Growth and Epitaxy-ICCGE-20
  • Int'l Joint Research
• [Presentation] Numerical analysis of heat and mass transfer of Ga2O3 grown by skull melting method(Oral) (2023)
  • Author(s): Koichi Kakimoto, Isao Takahashi, Taketoshi Tomida, Yusuke Kida, Kei Kamada, Satoshi Nakano, Akira Yoshikawa
  • Organizer: The International Conference on Crystal Growth and Epitaxy-ICCGE-20
  • Int'l Joint Research
• [Presentation] Growth of Mg 2 Si thermoelectric crystals with eutectic morphology by unidirectional solidification(Oral) (2023)
  • Author(s): Naomoto Hayashi, Yuui Yokota, Takahiko Horiai, Masao Yoshino, Akihiro Yamaji, Rikito Murakami, Takashi Hanada, Hiroki Sato, Yuji Ohashi, Shunsuke Kurosawa, Kei Kamada, Akira Yoshikawa
  • Organizer: The International Conference on Crystal Growth and Epitaxy-ICCGE-20
  • Int'l Joint Research
• [Presentation] Oxide Crystal growth from Cold Crucible;Ce doped Gd 3 (Al,Ga) 5 O 12 and β-Ga 2 O 3 as examples. (Oral) (2023)
  • Author(s): Akira Yoshikawa, Isao Takahash, Vladimir Kochurikhin, Taketoshi Tomida, Takahiko Horiai, Masao Yoshino, Rikito Murakami, Yasuhiro Shoji, Kei Kamada, Koichi Kakimoto
  • Organizer: The International Conference on Crystal Growth and Epitaxy-ICCGE-20
  • Int'l Joint Research
• [Presentation] Investigation of the phase diagram of the CsI-LiBr system and fabrication of the eutectic scintillator for thermal neutron detection(Oral) (2023)
  • Author(s): Rei Sasaki, Kei Kamada, Masao Yoshino, Kyoung Jin Kim, Rikito Murakami, Takahiko Horiai, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Yuji Ohashi, Takashi Hanada, Akira Yoshikawa
  • Organizer: The International Conference on Crystal Growth and Epitaxy-ICCGE-20
  • Int'l Joint Research
• [Presentation] Development and material design of structured scintillators for high resolution radiation imaging and thermal neutron detection (Oral) (2023)
  • Author(s): Kei Kamada, Rei Sasaki, Naoko Kutsuzawa, Masao Yoshino, Yuji Shirakami, Yoshiyuki Usuki, Takahiko Horiai, and Akira Yoshikawa
  • Organizer: Development of Materials Science in Research and Education
  • Int'l Joint Research
• [Presentation] Single crystal gowth of Ru-Mo-W-Re alloy wire by the dewetting micro-pulling-down method (Oral) (2023)
  • Author(s): Rikito Murakami, Shiika Itoi, Kotaro Yonemura, Kei Kamada, and Akira Yoshikawa
  • Organizer: Development of Materials Science in Research and Education
  • Int'l Joint Research
• [Presentation] Composition Dependence of Resistivity of Ru-Mo-W ternary system and single crystal wire growth by the dewetting micro-pulling-down method(Oral) (2023)
  • Author(s): Kotaro Yonemura, Rikito Murakami, Shiika Itoi, Kei Kamada, Takahiko Horiai, Takashi Hanada, Akihiro Yamaji, Masao Yoshino, Hiroki Sato, Yuji Ohashi, Shunsuke Kurosawa, Yuui Yokota, and Akira Yoshikawa
  • Organizer: Development of Materials Science in Research and Education
  • Int'l Joint Research
• [Presentation] Crystal Growth and Optical Properties of Ce-doped (Y, Tb)3Al2Ga3O12 and (Gd, Tb)3Al2Ga3O12 Scintillators(Oral) (2023)
  • Author(s): Kazuya Omuro, Masao Yoshino, Kei Kamada, Kyoung Jin Kim, Takahiko Horiai, Rikito Murakami, Akihiro Yamaji, Takashi Hanada, Yuui Yokota, Shunsuke Kurosawa, Yuji Ohashi, Hiroki Sato, and Akira Yoshikawa
  • Organizer: Development of Materials Science in Research and Education
  • Int'l Joint Research
• [Presentation] Crystal growth of Eu-doped (Y, Lu)ScO3 by micro-pulling-down method using W crucible(Oral) (2023)
  • Author(s): Yuka Abe, Takahiko Horiai, Yuui Yokota, Masao Yoshino, Rikito Murakami, Takashi Hanada, Akihiro Yamaji, Hiroki Sato, Yuji Ohashi, Shunsuke Kurosawa, Kei Kamada, and Akira Yoshikawa
  • Organizer: Development of Materials Science in Research and Education
  • Int'l Joint Research
• [Presentation] Development of a novel crucible free crystal growth technology andgrowth of 2 inch size b-Ga2O3 single crystal scintillator (Oral) (2023)
  • Author(s): K. Kamada R. Sasaki, T. Tomida, I. Takahashi, M. Yoshino, R. Murakami, T. Horiai, V. Kochurikhin, Y. Shoji, K. Kakimoto, A. Yoshikawa
  • Organizer: 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] Development of an ultrahigh resolution real time alpha particle imaging system for observing the trajectories in a scintillator and its applications(Oral) (2023)
  • Author(s): S. Yamamoto, M. Yoshino, K. Kamada, R. Yajima, A. Yoshikawa, K. Nakanishi, J. Kataoka
  • Organizer: 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] Development of Red-Light Oxide-Scintillators and Evaluation of the Dose Rate Monitoring System for the Decommissioning(Oral) (2023)
  • Author(s): D. Matsukura, S. Kurosawa, A. Yamaji, Y. Ohashi, Y. Yokota, K. Kamada, H. Sato, M. Yoshino, T. Hanada, R. Murakami, T. Horiai, A. Yoshikawa, H. Tanaka, T. Takata
  • Organizer: 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] Development of the 4th Whole Gamma Imaging Prototype for 89Zr Mouse Imaging Demonstration (Poster) (2023)
  • Author(s): G. Akamatsu, E. Yoshida, S. Ito, H. Tashima, H. G. Kang, S. Takyu, F. Nishikido, F. Obata, M. Kiyokawa, H. Wakizaka, K.J. Kim, K. Kamada, A. Yoshikawa, M. Takahashi, T. Yamaya
  • Organizer: 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] In vivo simultaneous imaging of 18F-FDG and Na131I with Compton PET system(Poster) (2023)
  • Author(s): D. Kim, L. Yan, K. Shimazoe, H. Takahashi, K. Ogane, M. Yoshino, K. Kamada, M. Uenomachi
  • Organizer: 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] Angular Correlation Measurement with Compton-PET for Information on Local Environment (2023)
  • Author(s): D. Kim, M. Uenomachi, K. Shimazoe, H. Takahashi, K. Kamada, H. Tomita(Poster)
  • Organizer: 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] Development of a GAGG prompt gamma camera and simultaneous imaging with prompt X-rays during irradiation by proton beams at clinical dose level(Poster) (2023)
  • Author(s): S. Yamamoto, T. Yamashita, Y. Kobashi, T. Yabe, K. Nakanishi, T. Akagi, M. Yamaguchi, N. Kawachi, K. Kamada, A. Yoshikawa, J. Kataoka
  • Organizer: 2023 IEEE Nuclear Science Symposium and Medical Imaging Conference
  • Int'l Joint Research
• [Presentation] Development of novel eutectic scintillators for thermal neutron detection(Oral) (2023)
  • Author(s): Kei Kamada, Ryuga Yajima, Rei Sasaki, Masao Yoshino, Kyoung Jin Kim, Vladimir. V. Kochurikhin, Akira Yoshikawa
  • Organizer: Directionally Solidified Eutectics Conference
  • Int'l Joint Research
• [Presentation] Fabrication and evaluation of LiCl/Rb2CeCl5 scintillator for thermal neutron detection(Oral) (2023)
  • Author(s): Rei Sasaki, Kei Kamada, Ryuga Yajima, Kyoung Jin Kim, Naoko Kutsuzawa, Masao Yoshino Rikito Murakami, Takahiko Horiai, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Satoshi Toyoda, Yuji Ohashi, Takashi Hanada, Vladimir. V. Kochurikhin and Akira Yoshikawa
  • Organizer: Directionally Solidified Eutectics Conference
  • Int'l Joint Research
• [Presentation] Growth and scintillation properties of LaCl3/6LiCl /SrCl2 ternary eutectic for thermal neutron detection(Oral) (2023)
  • Author(s): Rei Sasaki, Kei Kamada, Ryuga Yajima, Kyoung Jin Kim, Naoko Kutsuzawa, Masao Yoshino Rikito Murakami, Takahiko Horiai, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Satoshi Toyoda, Yuji Ohashi, Takashi Hanada, Vladimir. V. Kochurikhin and Akira Yoshikawa
  • Organizer: 9th International Symposium on Optical Materials (IS-OM'9)
  • Int'l Joint Research
• [Presentation] Daisuke Matsukura, Masao Yoshino Rikito Murakami, Takahiko Horiai, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Satoshi Toyoda, Yuji Ohashi, Takashi Hanada, Kei Kamada and Akira Yoshikawa (2023)
  • Author(s): Demonstration of Dose Rate Monitoring System with Garnet-Type Scintillators(Oral)
  • Organizer: 9th International Symposium on Optical Materials (IS-OM'9)
  • Int'l Joint Research
• [Presentation] Crystal Growth and Optical Properties of Ce-doped (Gd, Y, Tb)3Ga3Al2O12 Scintillators for X-ray Imaging, (Poster) (2023)
  • Author(s): Kazuya Omuro, Kyoung Jin Kim, Masao Yoshino Rikito Murakami, Takahiko Horiai, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Satoshi Toyoda, Yuji Ohashi, Takashi Hanada, Kei Kamada and Akira Yoshikawa
  • Organizer: 9th International Symposium on Optical Materials (IS-OM'9)
  • Int'l Joint Research
• [Presentation] Luminescence and scintillation properties of Tb,Ce co-doped (Gd,La)2Si2O7 for radiation imaging(Poster) (2023)
  • Author(s): Rikito Murakami, Masao Yoshino, Takahiko Horiai, Kei Kamada and Akira Yoshikawa
  • Organizer: 9th International Symposium on Optical Materials (IS-OM'9)
  • Int'l Joint Research
• [Presentation] Optical and Scintillation Properties of Pr3+ -Doped (La, Y)2Si2O7 Single Crystals(Poster) (2023)
  • Author(s): Yuka Abe, Masao Yoshino Rikito Murakami, Takahiko Horiai, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Satoshi Toyoda, Yuji Ohashi, Takashi Hanada, Kei Kamada and Akira Yoshikawa
  • Organizer: 9th International Symposium on Optical Materials (IS-OM'9)
  • Int'l Joint Research
• [Presentation] 水晶二層構造厚みすべり振動子の高次モードの温度特性評価 (2023)
  • Author(s): 大橋 雄二、野口 太生、横田 有為、村上 力輝斗、黒澤 俊介、鎌田 圭、堀合 毅彦、山路 晃広、吉野 将生、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] 169Yb の角度相関の測定と磁場応答の研究 (2023)
  • Author(s): 封 博宇、島添 健次、上ノ町 水紀、高橋 浩之、重河 優大、鎌田 圭、南部 明弘、羽場 宏光、富田 英生、朱 慶紅、金 東煥
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] 高感度・高分解能X線イメージング応用に向けたCeCl3/NaCl/SrCl2共晶体シンチレータの開発 (2023)
  • Author(s): 鎌田 圭、沓澤 直子、佐々木 玲、吉野 将生、堀合 毅彦、村上 力輝斗、山路 晃広、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] スカルメルテイング法による CZ-Ga2O3単結晶成長時の流動解析 (2023)
  • Author(s): 柿本 浩一、高橋 勲、富田 健稔、Vladimir Kochurikhin、鎌田 圭、中野 智、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] ルツボレスで作製したβ-Ga2O3結晶の成長方位依存性 (2023)
  • Author(s): 高橋 勲、Vladimir Kochurikhin、富田 健稔、菅原 孝昌、庄子 育宏、鎌田 圭、柿本 浩一、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] Ru-Mo-W-Re合金結晶線材のDewetting マイクロ引き下げ法による育成および評価 (2023)
  • Author(s): 村上 力輝斗、糸井 椎香、米村 虎太朗、鎌田 圭、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] 垂直ブリッジマン成長時における高指数面成長 Ga2O3の転位密度解析 (2023)
  • Author(s): 柿本 浩一、高橋 勲、富田 健稔、鎌田 圭、Vladimir Kochurikhin、中野 智、姚 永昭、石川 由加里、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] 共晶体構造を有するMg2Si/Si熱電結晶の局所構造制御と熱電特性 (2023)
  • Author(s): 林 直志、横田 有為、堀合 毅彦、吉野 将生、山路 晃広、村上 力輝斗、花田 貴、佐藤 浩樹、大橋 雄二、黒澤 俊介、鎌田 圭、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] Ru-Mo-W単結晶線材のDewetting マイクロ引き下げ法による作製および電気抵抗率の組成依存性 (2023)
  • Author(s): 米村 虎太朗、村上 力輝斗、糸井 椎香、鎌田 圭、堀合 毅彦、花田 貴、山路 晃広、吉野 将生、佐藤 浩樹、大橋 雄二、黒澤 俊介、横田 有為、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] 超音波照射によるカスケード核種の角度相関変化を利用した位置分解 (2023)
  • Author(s): 玉井 良樹、上ノ町 水紀、島添 健次、鎌田 圭、富田 英生、石島 歩
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] 近赤外発光シンチレータの廃炉用放射線量率モニタリングシステムへの適用の検討 (2023)
  • Author(s): 松倉 大佑、黒澤 俊介、山路 晃広、大橋 雄二、横田 有為、鎌田 圭、佐藤 浩樹、吉野 将生、花田 貴、村上 力輝斗、堀合 毅彦、吉川 彰、田中 浩基、高田 卓志
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] X線イメージング用Ce添加(Gd, Y, Tb)3Ga3Al2O12シンチレータの結晶成長および光学特性(Oral) (2023)
  • Author(s): 大室 和也、吉野 将生、鎌田 圭、金 敬鎭、堀合 毅彦、村上 力輝斗、山路 晃広、花田 貴、横田 有為、黒澤 俊介、大橋 雄二、佐藤 浩樹、吉川 彰
  • Organizer: 2023年 第84回 応用物理学会 秋季学術講演会
• [Presentation] 2元系および3元系共晶体構造を利用した機能性シンチレータ材料の開発(Oral) (2023)
  • Author(s): 鎌田圭，佐々木玲，沓澤直子，吉野将生，堀合毅彦， 村上力輝斗，薄善行， Kyoung Jin Kim，Vladimir. V. Kochurikhin，吉川彰
  • Organizer: 第52回結晶成長国内会議（JCCG-52）
• [Presentation] スカルメルテイング法によるCZ-Ga2O3単結晶成長時の流動解析(Oral) (2023)
  • Author(s): 柿本浩一，高橋 勲，富田 健稔，鎌田圭，中野智，吉川彰，Vladimir V. Kochurikhin
  • Organizer: 第52回結晶成長国内会議（JCCG-52）
• [Presentation] スカルメルト法を応用したOCCC法によるタンタル酸リチウム単結晶の大気雰囲気下での結晶育成と特性評価(Oral) (2023)
  • Author(s): 富田健稔，高橋勲， Vladimir Kochurikhin，庄子育宏，佐藤浩樹，大橋雄 二，鎌田圭，柿本浩一，吉川彰
  • Organizer: 第52回結晶成長国内会議（JCCG-52）
• [Presentation] 熱中性子検出用LiCl/Rb2CeCl5共晶シンチレータの育成と中性子応答評価（Poster） (2023)
  • Author(s): 佐々木玲，鎌田圭，吉野将生，堀合毅彦，村上力輝斗，Kyoung Jin Kim，山路晃広，黒澤俊介，横田有為，佐藤浩樹，大橋雄二，花田貴， 吉川彰
  • Organizer: 第52回結晶成長国内会議（JCCG-52）
• [Presentation] Wるつぼを使用したマイクロ引き下げ法によるEu3+添加(Y, Lu)ScO3;の結晶育成（Poster） (2023)
  • Author(s): 阿部柚佳，堀合毅彦，横田有為，吉野将生，村上力輝斗，花田貴，山路晃広，佐藤浩樹，大橋雄二，黒澤俊介，鎌田圭，吉川彰
  • Organizer: 第52回結晶成長国内会議（JCCG-52）
• [Presentation] 共晶体構造を有するMg2Si/Si熱電結晶の冷却速度による局所構造制御（Poster） (2023)
  • Author(s): 林直志，横田有為，堀合毅彦，吉野将生，山路晃広， 村上力輝斗，花田貴，佐藤浩樹，大橋雄二，黒澤俊介，鎌田圭，吉川彰
  • Organizer: 第52回結晶成長国内会議（JCCG-52）
• [Patent(Industrial Property Rights)] 結晶成長方法および装置 (2022)
  • Inventor(s): 吉川彰,鎌田圭,庄子育宏,ウラジミール K,高橋勲,富田健稔他
  • Industrial Property Rights Holder: 吉川彰,鎌田圭,庄子育宏,ウラジミール K,高橋勲,富田健稔他
  • Industrial Property Rights Type: 特許
  • Patent Publication Number: 特開2023-122837(P2023-122837A)
• [Patent(Industrial Property Rights)] 放射線測定装置 (2022)
  • Inventor(s): 吉野将生、鎌田圭、吉川彰、横田有為、小瀧淳、島添健次、庄子育宏
  • Industrial Property Rights Holder: 吉野将生、鎌田圭、吉川彰、横田有為、小瀧淳、島添健次、庄子育宏
  • Industrial Property Rights Type: 特許
  • Patent Publication Number: 特開2023-112435(P2023-112435A)