Development of time-spatial-focusing crystal-analyzer based on an unique focusing theory

2011 Fiscal Year Final Research Report

• Project/Area Number: 21604007
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: TAKAHASHI Nobuaki 独立行政法人日本原子力研究開発機構, J-PARCセンター, 研究員 (80378877)
• Co-Investigator(Kenkyū-buntansha): SHIBATA Kaoru 独立行政法人日本原子力研究開発機構, J-PARCセンター, 研究員 (60183836)
• Co-Investigator(Renkei-kenkyūsha): SATO Taku 東京大学, 物性研究所, 准教授 (70354214) ; KAWAKITA Yukinobu 独立行政法人日本原子力研究開発機構, J-PARCセンター, 研究副主幹 (50264015) ; AIZAWA Kazuya 独立行政法人日本原子力研究開発機構, J-PARCセンター, 研究主幹 (40354766) ; NAKAJIMA Kenji 独立行政法人日本原子力研究開発機構, J-PARCセンター, 研究主幹 (10272535)
• Project Period (FY): 2009 – 2011
• Keywords: 中性子実験装置開発

Research Abstract

This research was aiming to improve a neutron scattering instrument and we have demonstrated innovative performances of a novel device, which was a crystal-analyzer. The principle of the instrument is called as the time-of-flight method, i. e., neutrons which is scattered by an experimental sample reflect by a crystal-analyzer and reach to a detector. The method demands preciseness of the arriving time. And also, spatial distribution of neutrons should be narrow. Therefore, we developed a novel design concept of the crystal-analyzer which simultaneously implements the time-focusing and the spatial-focusing. We have demonstrated its focusing performances by Monte-Carlo simulations and experiments.

Research Products

• [Journal Article] Repetition Rate Multiplication : RRM, an Advanced Measuring Method planed for the Backscattering Instrument (2011)
  • Author(s): Nobuaki TAKAHASHI, Kaoru SHIBATA, Yukinobu KAWAKITA, Kenji NAKAJIMA, Yasuhiro INAMURA, Takeshi NAKATANI, Hiroshi NAKAGAWA, Satoru FUJIWARA, Taku J. SATO, Itaru TSUKUSHI, Ferenc MEZEI, Dan NEUMANN, Hannu MUTKA, Masatoshi ARAI
  • Journal Title: Journal of the Physical Society of Japan Volume: 80 Pages: SB007
  • URL: http://jpsj.ipap.jp/journal/JPSJS-80SB.html
  • Peer Reviewed
• [Presentation] The novel measuring method in inelastic region : RRM planned for the backscattering spectrometer DNA at the MLF, J-PARC (2011)
  • Author(s): Nobuaki TAKAHASHI
  • Organizer: 1st Asia-Oceania Conference on Neutron Scattering(AOCNS)
  • Place of Presentation: 茨城県つくば市
  • Year and Date: 2011-11-23
• [Presentation] RRM : An Advanced Measuring Method in Inelastic Region by the Backscattering Instrument DNA at the MLF, J-PARC (2011)
  • Author(s): Nobuaki TAKAHASHI
  • Organizer: The International Workshop on Neutron Applications on Strongly Correlated Electron Systems 2011
  • Place of Presentation: 茨城県那珂郡東海村
  • Year and Date: 2011-02-24
• [Presentation] 時間・空間同時集光型結晶アナライザーの開発I (2010)
  • Author(s): 高橋伸明
  • Organizer: 日本中性子科学会第10回年会
  • Place of Presentation: 宮城県仙台市
  • Year and Date: 2010-12-10