Development of high performance solid state track detector for the precise measurement of charge changing cross section of ultra heavy nuclei

2008 Fiscal Year Final Research Report

• Project/Area Number: 19840046
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: National Institute of Radiological Sciences (2008); Waseda University (2007)
• Principal Investigator: KODAIRA Satoshi National Institute of Radiological Sciences, 基盤技術センター, 博士研究員 (00434324)
• Project Period (FY): 2007 – 2008
• Keywords: 超重核 / 核反応断面積 / CR-39 / 固体飛跡検出器 / 宇宙線

Research Abstract

重イオンの標的物質との核電荷変換断面積を測定するためには、優れた電荷分解能が要求される。
現状では、入射粒子が超重核あるいは低エネルギー領域の場合CR-39固体飛跡検出器の信号は飽和してしまい、十分な電荷分解能が得られていない。
本研究では、CR-39にDAP樹脂を共重合させた新素材の開発やアルコールを添加した新しいエッチング手法の開発等の検出器の改良と、重イオン飛跡を3次元的に測定できる深さ顕微鏡系の検討による測定系の改良を行い、超重核あるいは低エネルギー重イオンを高精度に検出できるようになった。

Research Products

• [Journal Article] Temperature and pressure conditions for the appropriate performance of charge and mass resolutions in balloon-borne CR-39 track detector for the heavy cosmic rays (2009)
  • Author(s): S. Kodaira, N. Yasuda, H. Tawara, K. Ogura, T. Doke, N. Hasebe, and T. Yamauchi
  • Journal Title: Nucl. Instrum. & Meth B267 Pages: 1817-1822
  • Peer Reviewed
• [Journal Article] A Program for the Precise Observations of Ultra Heavy Nuclei in Galactic Cosmic Rays (2009)
  • Author(s): S. Kodaira, T. Doke, N. Hasebe, M. Hareyama, T. Miyachi, M. Miyajima, K. Sakurai, S. Ota, M. Sato, Y. Shimizu, M. Takano, S. Torii, N. Yasuda, S. Nakamura, H. Tawara, K. Ogura, S. Mikado, H. Shibuya, and K. Nakazawa
  • Journal Title: J. Phys. Soc. Jpn 78 (Suppl. A) Pages: 138-141
  • Peer Reviewed
• [Journal Article] CR-39固体飛跡検出器による重粒子の同位体弁別 (2008)
  • Author(s): 小平聡
  • Journal Title: 応用物理 77 Pages: 36-40
  • Peer Reviewed
• [Journal Article] Track detector of CR-39-DAP-copolymer with variable threshold to detect trans-iron nuclei in galactic cosmic rays (2008)
  • Author(s): S. Kodaira, M. Asaeda, T. Doke, M. Hareyama, N. Hasebe, K. Ogura, N. Yasuda, T. Tsuruta and Y. Kori
  • Journal Title: Radiat. Meas 43 Pages: 52-55
  • Peer Reviewed
• [Journal Article] Tracking method for the measurement of projectile charge changing cross section using CR-39 detector with a high speed imaging microscope (2008)
  • Author(s): S. Ota, S. Kodaira, N. Yasuda, E.R. Benton, M. Hareyama, M. Kurano, M. Sato, D. Shu and N. Hasebe
  • Journal Title: Radiat. Meas 43 Pages: 195-198
  • Peer Reviewed
• [Journal Article] Large Scale Observation Program of Ultra Heavy Nuclei in Galactic Cosmic Rays (2008)
  • Author(s): N. Hasebe, T. Doke, M. Hareyama, S. Kodaira, T. Miyachi, M. Miyajima, O. Okudaira, K. Sakurai, S. Ota, M. Sato, Y. Shimizu, M. Takano, S. Torii, N. Yamashita, N. Yasuda, S. Nakamura, T. Kamei, H. Tawara, K. Ogura, S. Mikado, H. Shibuya, K. Nakazawa and A.J. Westphal
  • Journal Title: Proc. Of the 30th Int. Cosmic Ray Conf 2 Pages: 51-54
  • Peer Reviewed
• [Journal Article] High Performance Measurement System of Large Area Solid-State Track Detector Array for Ultra Heavy Cosmic Rays (2008)
  • Author(s): S. Kodaira, T. Doke, M. Hareyama, N. Hasebe, S. Ota, K. Sakurai, M. Sato, N. Yasuda, S. Nakamura, T. Kamei, H. Tawara and K. Ogura
  • Journal Title: Proc. Of the 30th Int. Cosmic Ray Conf 2 Pages: 429-432
  • Peer Reviewed
• [Journal Article] Development of High Resolution Solid-State Track Detector for Ultra Heavy Cosmic Ray Observation (2008)
  • Author(s): S. Kodaira, T. Doke, M. Hareyama, N. Hasebe, S. Ota, K. Sakurai, M. Sato, N. Yasuda, S. Nakamura, T. Kamei, H. Tawara and K. Ogura
  • Journal Title: Proc. Of the 30th Int. Cosmic Ray Conf 2 Pages: 425-428
  • Peer Reviewed
• [Presentation] 超重イオン精密測定のための新しいCR-39の検出閾値の制御手法 (2009)
  • Author(s): 小平聡,安田仲宏,仲秀一郎,太田周也,長谷部信行,道家忠義,小倉紘一
  • Organizer: 春季第56回応用物理学関係連合講演
  • Place of Presentation: 筑波大
  • Year and Date: 20090400
• [Presentation] 超重核探索実験(1) 固体飛跡検出器の超重核観測に関する性能評価 (2009)
  • Author(s): 小平聡,安田仲宏,長谷部信行,晴山慎,太田周也,他超重核探索実験グループ
  • Organizer: 日本物理学会 第64回年次大会
  • Place of Presentation: 立教大
  • Year and Date: 20090300
• [Presentation] エッチピット深さ測定用顕微鏡系の検討 (2009)
  • Author(s): 小平聡, 安田仲宏, 本間義浩, 梅島洋介, 阿須賀拓, 太田周也, 佐藤匡
  • Organizer: 第24回固体飛跡検出器研究会
  • Place of Presentation: 早稲田大学
  • Year and Date: 20090300
• [Presentation] 新しい固体飛跡検出器による超重核観測計画 (2009)
  • Author(s): 小平聡
  • Organizer: STE研究集会太陽権シンポジウム
  • Place of Presentation: 名古屋大学
  • Year and Date: 20090100
• [Presentation] Control of the detection threshold of CR-39 track detector for the measurement of ultra heavy nuclei in galactic cosmic rays (2008)
  • Author(s): S. Kodaira, N. Yasuda, N. Hasebe, T. Doke, S. Ota, T. Tsuruta, H. Hasegawa, S. Sakai, T. Nishi and K. Ogura
  • Organizer: The 24^<th> International Conference on Nuclear Tracks in Solids
  • Place of Presentation: Bologna, Italy
  • Year and Date: 20080900
• [Presentation] Characteristics of the copolymerized CR-39-DAP track detector for the observation of ultra heavy nuclei in galactic cosmic rays (2008)
  • Author(s): S. Kodaira, N. Yasuda, N. Hasebe, T. Doke, S. Ota, T. Tsuruta, H. Hasegawa, S. Sakai, T. Nishi and K. Ogura
  • Organizer: The 24^<th> International Conference on Nuclear Tracks in Solids
  • Place of Presentation: Bologna, Italy)
  • Year and Date: 20080900
• [Presentation] Improvement of mass resolution for iron isotopes in CR-39 track detector (2008)
  • Author(s): 小平聡
  • Organizer: 秋季第69回応用物理学関係連合講演会
  • Place of Presentation: 中部大学
  • Year and Date: 20080900
• [Presentation] Observation program of ultra heavy nuclei in galactic cosmic rays (2008)
  • Author(s): S. Kodaira, T. Doke, N. Hasebe, M. Hareyama, T. Miyachi, M. Miyajima, K. Sakurai, S. Ota, M. Sato, Y. Shimizu, M. Takano, S. Torii, N. Yasuda, S. Nakamura, H. Tawara, K. Ogura, S. Mikado, H. Shibuya, and K. Nakazawa
  • Organizer: The 26^<th> International Symposium on Space Technology and Science
  • Place of Presentation: Hamamatsu, Japan
  • Year and Date: 20080600
• [Presentation] BP-1固体飛跡検出器の製法と応答感度に関する研究(II) (2008)
  • Author(s): 小平聡,中村正吾,亀井拓也,田川智博,安田仲宏,俵裕子,長谷部信行,道家忠義
  • Organizer: 春季第55回応用物理学関係連合講演会
  • Place of Presentation: 日本大学
  • Year and Date: 20080300
• [Presentation] 宇宙線超重核観測のための検出電荷閾値可変型CR-39-DAP固体飛跡検出器の開発 (2008)
  • Author(s): 小平聡, 安田仲宏,小倉紘一,鶴田隆雄,長谷川弘照,長谷部信行,道家忠義
  • Organizer: 春季第55回応用物理学関係連合講演会
  • Place of Presentation: 日本大学
  • Year and Date: 20080300
• [Presentation] 宇宙線超重核観測のための検出電荷閾値可変型CR-39-DAP固体飛跡検出器の開発 (2008)
  • Author(s): 小平聡, 安田仲宏, 小倉紘一, 鶴田隆雄, 長谷川弘照, 長谷部信行, 道家忠義
  • Organizer: 第23回固体飛跡検出器研究会
  • Year and Date: 20080300
• [Presentation] 宇宙線中の超重核観測計画7-高性能固体飛跡検出器の開発現状3 (2007)
  • Author(s): 小平聡,太田周也,佐藤匡,桜井邦朋,清水雄輝,鷹野正利,道家忠義,鳥居祥二,長谷部信行,晴山慎,宮島光弘,宮地孝,尾崎雄一,亀井拓也,中村正吾,安田仲宏,俵裕子,小倉紘一,渋谷寛
  • Organizer: 日本物理学会 第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 20070900
• [Presentation] Observation program of ultra heavy nuclei in galactic cosmic rays (2007)
  • Author(s): S. Kodaira, T. Doke, N. Hasebe, M. Hareyama, T. Miyachi, M. Miyajima, O. Okudaira, K. Sakurai, S. Ota, M. Sato, Y. Shimizu, M. Takano, S. Torii, N. Yamashita, N. Yasuda, S. Nakamura, T. Kamei, H. Tawara, K. Ogura, S. Mikado, H. Shibuya and K. Nakazawa, "Observation program of ultra heavy nuclei in galactic cosmic rays
  • Organizer: The 12^<th> Workshop on the Radiation Monitoring for International Space Station
  • Place of Presentation: Stillwater, United States of America
  • Year and Date: 20070900
• [Presentation] BP-1固体飛跡検出器の製法と応答感度に関する研究 (2007)
  • Author(s): 小平聡, 道家忠義, 長谷部信行, 亀井拓也, 中村正吾, 俵裕子, 安田仲宏
  • Organizer: 秋季第68回応用物理学学術講演会
  • Place of Presentation: 北海道工業大学
  • Year and Date: 20070900
• [Presentation] CR-39固体飛跡検出器を用いた鉄核に対する質量分解能の改善 (2007)
  • Author(s): 小平聡, 太田周也, 佐藤匡, 道家忠義, 長谷部信行, 安田仲宏, 俵裕子, 小倉紘一
  • Organizer: 秋季第68回応用物理学学術講演会
  • Place of Presentation: 北海道工業大学
  • Year and Date: 20070900