Researcher Database

Nakao Masao
Heavy Ion Medical Center(Research Institute)
Assistant Professor
Last Updated :2025/03/26

Researcher Profile and Settings

Researcher

  • Name

    Nakao Masao

Affiliation

  • Heavy Ion Medical Center(Research Institute), Assistant Professor

Profile and Settings

  • Name

    Nakao, Masao

Affiliation

  • Gunma University, Organization for Heavy Ion Medical Promotion

Degree

  • 博士 (理学), Kyoto University, Mar. 2013

Research Activities

Published Papers

  • Developments of real-time emittance monitors, Yasuyuki Morita; Mitsuhiro Fukuda; Tetsuhiko Yorita; Hiroki Kanda; Kichiji Hatanaka; Yuusuke Yasuda; Masao Nakao; Keita Kamakura; Shuhei Hara; Hui Wen Koay; Keijiro Takeda; Takafumi Hara; Kyohei Omoto, Apr. 2020, Review of Scientific Instruments, 91, 4, Scientific journal
  • Extraction System of Upgraded AVF Cyclotron of RCNP, M. Nakao; M. Fukuda; S. Hara; T. Hara; K. Hatanaka; K. Kamakura; H. Kanda; H. W. Koay; S. Morinobu; Y. Morita; K. Nagayama; T. Saito; K. Takeda; H. Tamura; Y. Yasuda; T. Yorita, 02 Dec. 2019, Journal of Physics: Conference Series, 1350, 1, International conference proceedings
  • Approach to increase beam intensity extracted from a cyclotron, M. Nakao; S. Hojo; K. Katagiri; N. Miyahara; A. Noda; K. Noda; A. Sugiura; T. Wakui; V. Smirnov; S. Vorozhtsov; A. Goto, 01 Sep. 2017, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 406, 214, 217, Scientific journal
  • A singly charged ion source for radioactive 11C ion acceleration, K. Katagiri; A. Noda; K. Nagatsu; M. Nakao; S. Hojo; M. Muramatsu; K. Suzuki; T. Wakui; K. Noda, Feb. 2016, Review of Scientific Instruments, 87, 2, Scientific journal
  • Cryogenic molecular separation system for radioactive 11C ion acceleration, K. Katagiri; A. Noda; K. Suzuki; K. Nagatsu; A. Yu Boytsov; D. E. Donets; E. D. Donets; E. E. Donets; A. Yu Ramzdorf; M. Nakao; S. Hojo; T. Wakui; K. Noda, 01 Dec. 2015, Review of Scientific Instruments, 86, 12, Scientific journal
  • Status of a compact electron cyclotron resonance ion source for National Institute of Radiological Sciences-930 cyclotron, S. Hojo; K. Katagiri; M. Nakao; A. Sugiura; M. Muramatsu; A. Noda; T. Okada; Y. Takahashi; A. Komiyama; T. Honma; K. Noda, Feb. 2014, Review of Scientific Instruments, 85, 2, Scientific journal
  • Efficiency enhancement of indirect transverse laser cooling with synchro-betatron resonant coupling by suppression of beam intensity, Hikaru Souda; Masao Nakao; Hiromu Tongu; Kouichi Jimbo; Kazuya Osaki; Hiromi Okamoto; Yosuke Yuri; He Zhengqi; Manfred Grieser; Akira Noda, Mar. 2013, Japanese Journal of Applied Physics, 52, 3 PART 1, Scientific journal
  • Resonance coupling induced enhancement of indirect transverse cooling in a laser-cooled ion beam, M. Nakao; T. Hiromasa; H. Souda; M. Tanabe; T. Ishikawa; H. Tongu; A. Noda; K. Jimbo; T. Shirai; M. Grieser; H. Okamoto; A. V. Smirnov, 30 Nov. 2012, Physical Review Special Topics - Accelerators and Beams, 15, 11, Scientific journal
  • COD correction for laser cooling at S-LSR, Hikaru Souda; Shinji Fujimoto; Hiromu Tongu; Toshiyuki Shirai; Mikio Tanabe; Takehiro Ishikawa; Masao Nakao; Masahiro Ikegami; Akihisa Wakita; Soma Iwata; Tetsuya Fujimoto; Takeshi Takeuchi; Koji Noda; Akira Noda, 01 Dec. 2008, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 597, 2-3, 160, 165, Scientific journal
  • Longitudinal and transverse coupling of the beam temperature caused by the laser cooling of 24mg+, Mikio Tanabe; Takehiro Ishikawa; Masao Nakao; Hikaru Souda; Masahiro Ikegami; Toshiyuki Shirai; Hiromu Tongu; Akira Noda, Feb. 2008, Applied Physics Express, 1, 2, Scientific journal
  • First Human Cell Experiments With FLASH Carbon Ions, MUTSUMI TASHIRO; YUKARI YOSHIDA; TAKAHIRO OIKE; MASAO NAKAO; KEN YUSA; YUKA HIROTA; TATSUYA OHNO, May 2022, Anticancer Research, 42, 5, 2469, 2477, Scientific journal
  • FLASH炭素イオン照射による細胞実験(第一報)(First trial of cell experiments with FLASH carbon-ion irradiation), ;;;;;;;, Sep. 2022, 65回, 102
  • Development of hollow beam forming method using octupole electromagnet for muon beam generation, Yasuyuki Morita; Mitsuhiro Fukuda; Yosuke Yuri; Dai Tomono; Tetsuhiko Yorita; Hiroki Kanda; Kichiji Hatanaka; Yusuke Yasuda; Masao Nakao; Shuhei Hara; Wen Koay Hui; Keijiro Takeda; Takahumi Hara; Kyohei Omoto; Nakashima Yuta, 2020, Meeting Abstracts of the Physical Society of Japan, 75.1, 577, 577
  • Electromagnetic field design for proton accelerator with cyclotron auto-resonance, Hara T.; Fukada M.; Yorita T.; Kanda H.; Nakao M.; Yasuda Y.; Shinozuka T.; Ito M.; Matsuda Y.; Kurashima S.; Miyawaki N.; Wakaui T., 2020, Meeting Abstracts of the Physical Society of Japan, 75.1, 549, 549
  • Development of 11C+ ion source for reacceleration with HIMAC for real-time observation of dose distribution, A. Noda; K. Katagiri; S. Hojo; A. Sugiura; K. Suzuki; T. Wakui; T. Shirai; K. Noda; M. Grieser; M. Nakao, 01 Jul. 2017, IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference, 4686, 4688, International conference proceedings
  • HTS magnets for accelerator applications, Kichiji Hatanaka; Mitsuhiro Fukuda; Shuhei Hara; Keita Kamakura; Masao Nakao; Yuusuke Yasuda; Tetsuhiko Yorita, 01 Jul. 2017, IPAC 2017 - Proceedings of the 8th International Particle Accelerator Conference, 2543, 2545, International conference proceedings

MISC

  • Status of the cyclotron facility at research center for nuclear physics, H. Kanda; M. Fukuda; S. Hara; T. Hara; K. Hatanaka; K. Kamakura; H. W. Koay; S. Morinobu; Y. Morita; M. Nakao; K. Omoto; T. Saito; K. Takeda; H. Tamura; Y. Yasuda; T. Yorita, 2020, CYC 2019 - Proceedings of the 22nd International Conference on Cyclotrons and their Applications, 260, 262
  • Conceptual design of central region for high-temperature superconducting skeleton cyclotron (HTS-SC), H. W. Koay; M. Fukuda; H. Kanda; M. Nakao; T. Yorita, 2020, CYC 2019 - Proceedings of the 22nd International Conference on Cyclotrons and their Applications, 280, 284
  • IPAC2019 Meeting Report, 外山 毅; 中尾 政夫; 田中 織雅, 2019, 16, 3, 192, 197
  • Development of Real-time Emitter Monitor for Ion Beam by Pepper Pot Method, Morita Yasuyuki; Yamanoshita Rina; Wen Koay Hui; Fukuda Mitsuhiro; Yorita Tetsuhiko; Kanda Hiroki; Hatanaka Kichiji; Nakao Masao; Yasuda Yuusuke; Kamakura Keita; Hara Shuhei, 2018, Meeting Abstracts of the Physical Society of Japan, 73, 0, 537, 537
  • Development of a real-time two-dimensional dose-distribution fluorescence monitor for beam scanning, Yamanoshita Rina, 2018, Meeting Abstracts of the Physical Society of Japan, 73, 0, 509, 509
  • Development of Beam Intensity Modulation System for Spiral Beam Scanning in Particle Therapy, Hara Shuhei; Sagawa Tomohiro; Huiwen Koay; Kamakura Keita; Morita Yasuyuki; Fukuda Mitsuhiro; Koizumi Masahiko; Takashina Masaaki; Sumida Iori; Kanda Hiroki; Yorita Tetsuhiko; Nakao Masao; Yamanoshita Rina, 2018, Meeting Abstracts of the Physical Society of Japan, 73, 0, 510, 510
  • Improvement of the NirS-930 cyclotron for targeted radionuclide therapy, Satoru Hojo; Takashi Wakui; Ken Katagiri; Masao Nakao; Akinori Sugiura; Akira Noda; Koji Noda, 2016, CYC 2016 - Proceedings of the 21st International Conference on Cyclotrons and their Applications, 328, 331
  • 21pDB-3 Resonance coupling induced enhancement of indirect transverse laser-cooling applied for a fast ion beam, Nakao M., 2015, Meeting Abstracts of the Physical Society of Japan, 70, 0, 68, 69
  • 22aDE-4 Simulation for Cyclotron NIRS - 930, Nakao M.; Hojo S.; Katagiri K.; Sugiura A.; Noda A.; Goto A.; Victor Smirnov; Sergey Vorozhtsov, 2015, Meeting Abstracts of the Physical Society of Japan, 70, 0, 522, 522
  • Recent progress and future plan of heavy-ion radiotherapy facility, HIMAC, K. Noda; T. Furukawa; Y. Hara; T. Inaniwa; Y. Iwata; K. Katagiri; N. Kanematsu; A. Kitagawa; K. Mizushima; S. Mori; T. Murakami; M. Muramatsu; M. Nakao; A. Noda; S. Sato; T. Shirai; E. Takada; Y. Takei, 01 Jul. 2014, IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference, 2812, 2814
  • Beam simulation for improved operation of cyclotron NIRS-930, M. Nakao; S. Hojo; K. Katagiri; A. Noda; K. Noda; A. Sugiura; T. Honma; A. Komiyama; T. Okada; Y. Takahashi; V. Smirnov; S. Vorozhtsov; Akira Goto, 01 Jul. 2014, IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference, 797, 799
  • Measurement of beam phase using phase probe at the NIRS-930 cyclotron, S. Hojo; K. Katagiri; A. Sugiura; M. Nakao; A. Noda; K. Noda; T. Honma; A. Komiyama; T. Okada; Y. Takahashi, 01 Jul. 2014, IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference, 794, 796
  • Design of beam transport lines for radioisotope production systems in NIRS cyclotron facility, Ken Katagiri; Satoru Hojo; Masao Nakao; Akinori Sugiura; Kazutoshi Suzuki; Akira Noda; Koji Noda, 01 Jul. 2014, IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference, 2162, 2164
  • Ultralow emittance beam production based on doppler laser cooling and coupling resonance, A. Noda; M. Nakao; H. Okamoto; K. Osaki; Y. Yuri; H. Souda; H. Tongu; K. Jimbo; M. Grieser; Z. He; A. Smirnov, 01 Jul. 2014, IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference, 28, 33
  • Present status of cyclotrons (NiRS-930, HM-18) at NIRS, Satoru Hojo; Akinori Sugiura; Ken Katagiri; Masao Nakao; Akira Noda; Koji Noda; Yuichi Takahashi; Takanori Okada; Akihito Komiyama; Toshihiro Honma, Mar. 2014, CYCLOTRONS 2013 - Proceedings of the 20th International Conference on Cyclotrons and their Applications, 46, 48
  • Recent progress of heavy-ion cancer radiotherapy with NIRS-HIMAC, K. Noda; T. Furukawa; Y. Hara; T. Inaniwa; Y. Iwata; K. Katagiri; N. Kanematsu; A. Kitagawa; K. Mizushima; S. Mori; T. Murakami; M. Muramatsu; M. Nakao; S. Sato; T. Shirai; E. Takada; Y. Takei, 2013, 11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013, 22, 26
  • 27aBA-3 Efficiency Enhancement of Indirect Transverse Laser Cooling by Suppression of Beam Intensity with Scrapers, Souda H.; Grieser M.; Nakao M.; Tongu H.; Noda A.; Jimbo K.; Osaki K.; Okamoto H.; Yuri Y.; He Z. Q., 2013, Meeting Abstracts of the Physical Society of Japan, 68, 0, 153, 153
  • 27aBA-4 Sideband oscillations in synchro-betatron resonance coupling at S-LSR, Jimbo Kouichi; Souda Hikaru; Nakao Masao; Tongu Hiromu; Noda Akira, 2013, Meeting Abstracts of the Physical Society of Japan, 68, 0, 154, 154
  • Approach to the low temperature state oriented for crystalline beam, Akira Noda; Masao Nakao; Hikaru Souda; Hiromu Tongu; Kouichi Jimbo; Hiromi Okamoto; Kazuya Osaki; Yosuke Yuri; Igor Nikolai Meshkov; Alexander V. Smirnov; Manfred Grieser; Koji Noda; Toshiyuki Shirai; Zhengqi He, 2012, RuPAC 2012 Contributions to the Proceedings - 23rd Russian Particle Accelerator Conference, 48, 52
  • Challenge for more efficient transverse laser cooling for beam crystallization, A. Noda; M. Nakao; H. Souda; H. Tongu; K. Ito; H. Okamoto; K. Osaki; Y. Yuri; K. Jimbo; M. Grieser; Z. He, 2012, IPAC 2012 - International Particle Accelerator Conference 2012, 394, 396
  • Observation of 2-component bunched beam signal with laser cooling, H. Souda; M. Nakao; A. Noda; H. Tongu; K. Ito; H. Okamoto; Y. Yuri; K. Jimbo; M. Grieser; Z. He, 2012, IPAC 2012 - International Particle Accelerator Conference 2012, 397, 399
  • Analysis of frequency spectrum of bunched beam related to transverse laser cooling, K. Jimbo; H. Souda; M. Nakao; H. Tongu; A. Noda; He Zhengqi, 2012, IPAC 2012 - International Particle Accelerator Conference 2012, 391, 393
  • 24aGB-3 Selective Scraping for Highly Efficient Multi-dimensional Laser Cooling, Noda Akira; Nakao Masao; Souda Hikaru; Tongu Hiromu; Zhengqi He; Okamoto Hiromi; Ito Kiyokazu; Grieser Manfred; Jimbo Koichi, 2012, Meeting Abstracts of the Physical Society of Japan, 67, 0, 145, 145
  • 27aYE-3 Betatron oscillation near the resonant point fan ion beam with two temperature components at S-LSR, Jimbo Kouichi; Souda Hikaru; Nakao Masao; Tongu Hiromu; Noda Akira; Zhengqi He, 2012, Meeting Abstracts of the Physical Society of Japan, 67, 0, 158, 158
  • Present status of beam cooling and related research at s-LSR, A. Noda; M. Nakao; H. Souda; H. Tongu; T. Fujimoto; S. Iwata; S. Shibuya; K. Ito; H. Okamoto; K. Jimbo; M. Grieser; K. Noda; T. Shirai, 2011, IPAC 2011 - 2nd International Particle Accelerator Conference, 3436, 3438
  • 26aGAB-5 Injection Matching at Ion Storage/Cooler Ring, S-LSR, Souda Hikaru; Grieser Manfred; Nakao Masao; Hiromasa Tatsuya; Tongu Hiromu; Noda Akira; Jimbo Kouichi; Okamoto Hiromi; Yu Peicheng; He Zhengqi, 2011, Meeting Abstracts of the Physical Society of Japan, 66, 0, 139, 139
  • 28pGAB-8 Beam Line at S-LSR, ICR, Kyoto University, for Biological Irradiation, Noda Akira; Nishiuchi Mamiko; Yogo Akifumi; Souda Hikaru; Tonguu Hiromu; Nakao Masao; Hiromasa Tatsuya; Furusawa Yoshiya; Iwata Yoshiyuki; Noda Koji; Shirai Toshiyuki, 2011, Meeting Abstracts of the Physical Society of Japan, 66, 0, 153, 153
  • Optical measurement of transverse laser cooling with synchro-betatron coupling, M. Nakao; T. Hiromasa; H. Souda; H. Tongu; A. Noda; K. Jimbo; T. Shirai; M. Grieser; H. Okamoto; A. V. Smirnov, 2010, IPAC 2010 - 1st International Particle Accelerator Conference, 858, 860
  • Transverse laser cooling by synchro-betatron coupling, H. Souda; M. Nakao; T. Hiromasa; H. Tongu; A. Noda; H. Okamoto; A. V. Smirnov; K. Jimbo; M. Grieser; T. Shirai, 2010, IPAC 2010 - 1st International Particle Accelerator Conference, 861, 863
  • Horizontal-vertical coupling for three dimensional laser cooling, T. Hiromasa; M. Nakao; A. Noda; H. Souda; H. Tongu; K. Jimbo; T. Shirai, 2010, IPAC 2010 - 1st International Particle Accelerator Conference, 855, 857
  • Beam lifetime with the vacuum system in S-LSR, H. Tongu; T. Hiromasa; M. Nakao; A. Noda; H. Souda; T. Shirai, 2010, IPAC 2010 - 1st International Particle Accelerator Conference, 864, 866
  • 20pBF-1 Transverse laser cooling of ^<24>Mg^+ beams by resonant coupling, Souda Hikaru; Smirnov Alexander; Nakao Masao; Hiromasa Tatsuya; Tongu Hiromu; Noda Akira; Jimbo Kouichi; Shirai Toshiyuki; Okamoto Hiromi; Grieser Manfred, 2010, Meeting Abstracts of the Physical Society of Japan, 65, 0, 133, 133
  • 28aZB-7 Experimental approach for 2-dimensional laser cooling by resonant coupling at S-LSR, Souda Hikaru; Nakao Masao; Tongu Hiromu; Noda Akira; Jimbo Kouichi; Okamoto Hiromi; Grieser Manfred; Smirnov Alexander; Shibuya Shinji, 2009, Meeting Abstracts of the Physical Society of Japan, 64, 0, 108, 108
  • Recent status of laser cooling for MG realized at S-LSR, Akira Noda; Masahiro Ikegami; Takehiro Ishikawa; Masao Nakao; Hikaru Souda; Mikio Tanabe; Hiromu Tongu; Akihisa Wakita; Manfred Grieser; Igor Meshkov; Alexander V. Smirnov; Koji Noda; Toshiyuki Shirai, 2008, EPAC 2008 - Contributions to the Proceedings, 3476, 3478
  • Crystalline beam simullations, D. Krestnikov; A. Smirnov; A. Sidorin; I. Meshkov; G. Trubnikov; A. Noda; H. Souda; M. Nakao; H. Tongu; N. Koji; T. Shirai; M. Ikegami; M. Grieser, 2008, EPAC 2008 - Contributions to the Proceedings, 1747, 1749
  • LASER cooling of bunched ion beam at S-LSR, H. Souda; M. Ikegami; T. Ishikawa; M. Nakao; A. Noda; M. Tanabe; H. Tongu; M. Yamada; A. Wakita; T. Shirai, 2008, EPAC 2008 - Contributions to the Proceedings, 3488, 3490
  • 23aZL-4 Beam Optics of Magnesium Beam at S-LSR, Souda Hikaru; Tanabe Mikio; Ishikawa Takehiro; Nakao Masao; Ikegami Masahiro; Tongu Hiromu; Shirai Toshiyuki; Noda Akira, 2008, Meeting Abstracts of the Physical Society of Japan, 63, 0, 117, 117
  • Experimental approach to ultra-cold ion beam at S-LSR, A. Noda; T. Shirai; H. Souda; M. Tanabe; H. Tongu; M. Ikegami; T. Ishikawa; M. Nakao; H. Fadil; M. Grieser; I. Meshkov; A. Smirnov; K. Noda, 2007, Proceedings of the IEEE Particle Accelerator Conference, 2035, 2037
  • 24aZG-8 Experiment of Laser Cooling of Mg^+ beam at S-LSR, Tanabe Mikio; Souda Hikaru; Ishikawa Takehiro; Nakao Masao; Ikegami Masahiro; Tongu Hiromu; Shirai Toshiyuki; Noda Akira, 2007, Meeting Abstracts of the Physical Society of Japan, 62, 0, 134, 134
  • 24aZG-7 Beam Optimization for Laser Cooling at S-LSR, Souda Hikaru; Tanabe Mikio; Ishikawa Takehiro; Nakao Masao; Ikegami Masahiro; Tongu Hiromu; Shirai Toshiyuki; Noda Akira, 2007, Meeting Abstracts of the Physical Society of Japan, 62, 0, 134, 134
  • 27aYE-3 Betatron oscillation near the resonant point of an ion heam with two temperature components at S-LSR, Jimbo Kouichi; Souda Hikaru; Nakao Masao; Tongu Hiromu; Noda Akira; He Zhengqi, 05 Mar. 2012, Meeting abstracts of the Physical Society of Japan, 67, 1, 283, 283
  • PRESENT STATUS OF GUNMA UNIVERSITY HEAVY ION MEDICAL CENTER, Masao Nakao; Motohiro Kawashima; Akihiko Matsumura; Makoto Sakai; Hirofumi Shimada; Mutsumi Tashiro; Maria Varnava; Ken Yusa; Hikaru Souda, Aug. 2021, 日本加速器学会年会(Web), 18th, 401, 403, Summary national conference
  • UPDATE OF INJECTION SYSTEM OF THE AVF CYCLOTRON AT RCNP, Masao Nakao; Mitsuhiro Fukuda; Tetsuhiko Yorita; Hiroki Kanda; Yusuke Yasuda; Dai Tomono; Keita Kamakura; Shunpei Morinobu; Takane Saito; Kichiji Hatanaka; Hitoshi Tamura; Keiichi Nagayama; Hui Wen Koay; Yasuyuki Morita; Keijiro Takeda; Kyohei Omoto, Sep. 2020, Proceedings of the 17th Annual Meeting of Particle Accelerator Society of Japan, 17, 214, 217, Summary national conference
  • INVESTIGATION OF NEUTRON SOURCE FOR LLFP TRANSMUTATION BASED CYCLOTRONS, 武田佳次朗; 福田光宏; 依田哲彦; 神田浩樹; 関亮一; 中尾政夫; KOAY Hui Wen; 森田泰之; 原隆文; 大本恭平; 荘浚謙; 久松万里子, 2020, 日本加速器学会年会(Web), 17th
  • サイクロトロンを用いたLLFP核変換用中性子源の概念設計, 武田佳次朗; 福田光宏; 土岐博; 関亮一; 篠塚勉; 依田哲彦; 神田浩樹; 中尾政夫; 原周平; KOAY Hui Wen; 森田泰之; 原隆文; 大本恭平, 2019, 16th
  • RCNPにおける高輝度陽子源の開発, 大本恭平; 福田光宏; 依田哲彦; 神田浩樹; 畑中吉治; 森信俊平; 齋藤高嶺; 中尾政夫; 安田裕介; 鎌倉恵太; 原周平; KOAY Hui Wen; 森田泰之; 武田佳次郎; 原隆文, 2019, 16th

Research Projects

  • Development of the underlying technology for realization of energy saving, high intensity compact accelerator with 30 % energy efficiency for RI production, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Osaka University, 01 Apr. 2020, 31 Mar. 2023, 20H04454


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