Research of improvement on counting rate and noise resistance of x-ray detector for plasma diagnostics

• Project/Area Number: 23561001
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: MUTO Sadatsugu 核融合科学研究所, ヘリカル研究部, 助教 (40260054)
• Co-Investigator(Renkei-kenkyūsha): MORITA Shigeru 核融合科学研究所, ヘリカル研究部, 教授 (80174423) ; HUNABA Hisamichi 核融合科学研究所, ヘリカル研究部, 助教 (40300727)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: プラズマ計測 / X線 / スペクトル / 画像 / 高計数率 / プラズマ / 不純物 / 輸送測定 / Ｘ線

Research Abstract

In the present research a test stand for x-ray spectrum imaging has been constructed. A test performance has been carried out by using synchrotron radiation at BL-14C in KEK PF, since more intense x-ray gives rise to better energy and time resolution by means of the methods on the x-ray spectrum imaging. The secondary refracted 0.3-mm-width-x-ray beam from the tandem crystal monochrometer is detected through 1-mm-diameter-tungsten pinhole with 16-bit-dynamic-range-CCD camera. The experimental result is consistent with the theoretical prediction from the geometrical configuration of the test stand. The parameters necessary for the spectrum analysis have been also obtained.

Research Products

• [Journal Article] Design for X-Ray Imaging Spectroscopy in Large Helical Device (2013)
  • Author(s): S. Muto and LHD Experimental Group
  • Journal Title: Plasma and Fusion Research Volume: 8 Issue: 0 Pages: 2402140-2402140
  • DOI: 10.1585/pfr.8.2402140
  • NAID: 130004942927
  • ISSN: 1880-6821
  • Peer Reviewed
• [Presentation] X線スペクトルイメージングシステムの開発 (2014)
  • Author(s): 武藤貞嗣, 兵藤一行, 森浩一
  • Organizer: 物質構造科学研究所サイエンスフェスタ2014
  • Place of Presentation: 茨城県つくば市
• [Presentation] X線スペクトルイメージングシステムの開発 (2014)
  • Author(s): 武藤貞嗣、兵藤一行、森浩一
  • Organizer: 物質構造科学研究所サイエンスフェスタ
  • Place of Presentation: 茨城県つくば市
• [Presentation] Development of Assembly of SOI Detector for Impurity Transport Study in LHD, 'NSS Poster I'NPO1-88 (2013)
  • Author(s): S. Muto, T. Miyoshi, N. Tamura, H. Nakanishi, Y. Itoh, K. Tsukada, T. Tsuru, Y. Ono, S. Sudo, Y. Arai, and LHD Experimental Groups
  • Organizer: 2013 Nuclear Science Symposium & Medical Imaging Conference & Workshop on Room-temperature Semiconductor X-ray and Gamma-Ray Detectors
  • Place of Presentation: Coex, Seoul, Korea
• [Presentation] Development of Assembly of SOI Detector for Impurity Transport Study in LHD (2013)
  • Author(s): 武藤貞嗣、三好敏喜、田村直樹、中西秀哉、伊藤康彦、塚田究、鶴剛、小野靖、須藤滋、新井康夫
  • Organizer: 国際電気学会
  • Place of Presentation: 韓国、ソウル
• [Presentation] Application of photo-absorption for x-ray spectroscopy in LHD (2012)
  • Author(s): S. MUTO and LHD Experimental Groups
  • Organizer: International Toki Conference 2012
  • Place of Presentation: Toki, Japan
  • Year and Date: 2012-11-22
• [Presentation] Application of photo-absorption for x-ray spectroscopy in LHD (2012)
  • Author(s): 武藤貞嗣
  • Organizer: 22nd International TOKI Conference
  • Place of Presentation: 岐阜県土岐市セラトピア土岐