Energy resolved soft X-ray imaging for the measurements of local distortion of distribution function

• Project/Area Number: 20760582
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: SUZUKI Chihiro National Institute for Fusion Science, ヘリカル研究部, 助教 (30321615)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 軟エックス線 / イメージング / CCDカメラ / 大型ヘリカル装置 / エネルギー分布関数 / 核融合プラズマ

Research Abstract

In the Large Helical Device, we have constructed a diagnostic system for simultaneous achievement of imaging and photoncounting in high temperature plasmas by using dual soft X-ray CCD cameras and several filters with different cutoff energies. In a long pulse discharge, peak of the image tend to be shifted outward as the energy range becomes higher. The energy spectrum has been measured at the same time, which leads to the future measurement of locally distorted distribution function.

Research Products

• [Journal Article] Shafranov shift measurements by a soft X-ray CCD camera for internal diffusion barrier discharges in the Large Helical Device (2010)
  • Author(s): C.Suzuki, K.Ida, R.Sakamoto, M.Yoshinuma
  • Journal Title: Nuclear Fusion Vol.50
  • Peer Reviewed
• [Journal Article] Shafranov shift measurements by a soft X-ray CCD camera for internal diffusion barrier discharges in the Large Helical Device (2010)
  • Author(s): C.Suzuki, et al.
  • Journal Title: Nuclear Fusion Volume: VOL.50
  • Peer Reviewed
• [Journal Article] Energy resolved soft x-ray imaging using a charge coupled device camera for long pulse discharges in the Large Helical Device (2008)
  • Author(s): C.Suzuki, K.Ida, T.Kobuchi, M.Yoshinuma
  • Journal Title: Review of Scientific Instruments Vol.79
  • Peer Reviewed
• [Journal Article] Energy resolved soft x-ray imaging using a charge coupled device camera for long pulse discharges in the Large Helical Device (2008)
  • Author(s): C. Suzuki, et.al.
  • Journal Title: REVIEW OF SCIENTIFIC INSTRUMENTS 79
  • Peer Reviewed
• [Presentation] Analysis of magnetic axis shift for high beta and high density LHD plasmas using a soft X-ray CCD camera (2010)
  • Author(s): C.Suzuki, K.Ida, M.Yoshinuma, R.Sakamoto, S.Ohdachi
  • Organizer: 20th International Toki Conference
  • Place of Presentation: Toki
• [Presentation] Shafranov shift measurements by a soft X-ray CCD camera for internal diffusion barrier discharges in the Large Helical Device (2009)
  • Author(s): C.Suzuki, K.Ida, R.Sakamoto, M.Yoshinuma
  • Organizer: 12th International Workshop on H-mode Physics and Transport Barriers
  • Place of Presentation: Princeton
• [Presentation] Shafranov shift measurements by a soft X-ray CCD camera for internal diffusion barrier discharges in the Large Helical Device (2009)
  • Author(s): C.Suzuki et al.
  • Organizer: 12th International Workshop on "H-mode Physics and Transport Barriers"
  • Place of Presentation: Princeton
• [Presentation] Extension of the energy-resolved soft X-ray imaging system using two CCD cameras in LHD (2008)
  • Author(s): C.Suzuki, K.Ida, M.Yoshinuma
  • Organizer: 18th International Toki Conference
  • Place of Presentation: Toki