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2013 Fiscal Year Final Research Report

Performance improvement of X-ray CCDs by applying a magnetic field

Research Project

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Project/Area Number 22340074
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionJapan Aerospace Exploration Agency

Principal Investigator

DOTANI Tadayasu  独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (30211410)

Co-Investigator(Renkei-kenkyūsha) OZAKI Masanobu  宇宙航空研究開発機構, 宇宙科学研究所, 助教 (90300699)
BAMBA Aya  青山学院大学, 理工学部, 准教授 (70392082)
Project Period (FY) 2010-04-01 – 2013-03-31
KeywordsX線 / CCD / 放射線検出器 / X線望遠鏡
Research Abstract

X-ray CCDs are now regarded as a standard focal plane detector of X-ray telescopes. Among them, backside illuminated CCDs with a deep depletion layer are being most widely used. However, because the electric field is weak at the back surface and the charge clouds tend to extend largely, they have poorer energy resolution and higher charged-particle background. Thus, we tried to suppress the charge extension by applying an external magnetic field and to improve the CCD's performance. We found that only a magnetic field of 0.3T is enough to cause systematic difference in charge splitting along the horizontal direction. Furthermore, although significance was low, we found energy resolution to improve slightly with the magnetic field. These results show for the first time that we can control the movement of charges in silicon and improve the performance of X-ray CCDs by applying an external magnetic field.

  • Research Products

    (12 results)

All 2014 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 1 results) Presentation (9 results)

  • [Journal Article] Proton radiation damage experiment on P-Channel CCD for an X-ray CCD camera onboard the ASTRO-H satellite2013

    • Author(s)
      K. Mori, Y. Nishioka, S. Ohura, Y. Koura, M. Yamauchi, H. Nakajima, S. Ueda, H. Kan, N. Anabuki, R. Nagino, K. Hayashida, H. Tsunemi, T. Kohmura, S. Ikeda, H. Murakami, M. Ozaki, T. Dotani, Y. Maeda, K. Sagara
    • Journal Title

      Nuclear Instruments & Methods in Phys. Res. A

      Volume: vol. 731 Pages: 160-165

    • DOI

      10.1016/j.nima.2013.05.052

    • Peer Reviewed
  • [Journal Article] Soft X-ray Imager (SXI) onboard ASTRO-H2012

    • Author(s)
      K. Hayashida, H. tsunami, T. G. Tsuru, T. Dotani, 他22名
    • Journal Title

      SPIE

      Volume: vol.8443 Pages: 9

    • DOI

      10.1117/12.925095

  • [Journal Article] X線天文衛星のコンタミネーション対策2011

    • Author(s)
      堂谷忠靖
    • Journal Title

      日本空気清浄協会機関誌

      Volume: 49巻,No.4 Pages: 34-44

  • [Presentation] Performance Improvement of x-ray CCDs by applying a magnetic field2014

    • Author(s)
      K. Kondo,T. Dotani,M. Ozaki,M. Iwai
    • Organizer
      Astronomical Telescopes & Instrumentation, SPIE
    • Place of Presentation
      Montr al (Canada)
    • Year and Date
      20140622-26
  • [Presentation] X線天文衛星ASTRO-H搭載X線CCDカメラSXIの開発の現状VII2014

    • Author(s)
      村上弘志,堂谷忠靖,尾崎正伸,他20名
    • Organizer
      日本物理学会
    • Place of Presentation
      東海大学(神奈川県)
    • Year and Date
      20140327-30
  • [Presentation] 磁場印可によるX線CCDの性能向上2014

    • Author(s)
      近藤恵介,堂谷忠靖,尾崎正伸,岩井将親
    • Organizer
      日本天文学会
    • Place of Presentation
      国際基督教大学(東京都)
    • Year and Date
      20140319-22
  • [Presentation] Astro-H搭載軟X線撮像検出器SXIの開発の現状2014

    • Author(s)
      平賀純子,常深博,林田清,穴吹直久,中嶋大,薙野綾,堂谷忠靖,尾崎正伸,他15名
    • Organizer
      日本天文学会
    • Place of Presentation
      国際基督教大学(東京都)
    • Year and Date
      20140319-22
  • [Presentation] ASTRO-H衛星のコンタミネーション管理2013

    • Author(s)
      堂谷忠靖,山崎典子,馬場勧,美浦由佳,宮崎英治
    • Organizer
      第57回宇宙科学技術連合講演会
    • Place of Presentation
      米子コンベンションセンター(島根県)
    • Year and Date
      20131009-11
  • [Presentation] 荷電粒子バックグラウンドの除去効率を高めたX線CCD検出器の開発2013

    • Author(s)
      岩井将親,藤永貴久,井津正治,堂谷忠靖,尾崎正伸,他6名
    • Organizer
      日本天文学会
    • Place of Presentation
      埼玉大学(埼玉県)
    • Year and Date
      20130320-23
  • [Presentation] ASTRO-H搭載軟X線撮像検出器SXIのコンタミネーション対策2013

    • Author(s)
      井津正治,堂谷忠靖,藤永貴久,岩井将親,尾崎正伸,他3名
    • Organizer
      日本天文学会
    • Place of Presentation
      埼玉大学(埼玉県)
    • Year and Date
      20130320-23
  • [Presentation] ASTRO-H搭載X線CCDカメラ(SXI)用小型素子評価システムの開発2012

    • Author(s)
      岩井将親,藤永貴久,堂谷忠靖,尾崎正伸,夏苅権,穴吹直久
    • Organizer
      日本天文学会
    • Place of Presentation
      龍谷大学(京都府)
    • Year and Date
      20120329-22
  • [Presentation] Development of the data acquisition system for the x-ray CCD camera (SXI) onboard ASTRO-H2011

    • Author(s)
      T. Fujinaga, N. Anabuki, S. Aoyama, H. Kawano, S. Ikeda, M. Iwai, M. Ozaki, T. Dotani, 他14名
    • Organizer
      Astronomical Telescopes & Instrumentation, SPIE
    • Place of Presentation
      San Diego (USA)
    • Year and Date
      20110821-24

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Published: 2015-07-16  

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