Research on Epithermal Neutron Spin Optics for Velocity Selection

2014 Fiscal Year Final Research Report

• Project/Area Number: 24651108
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science
• Research Institution: Nagoya University
• Principal Investigator: SHIMIZU Hirohiko 名古屋大学, 理学(系)研究科(研究院), 教授 (50249900)
• Co-Investigator(Renkei-kenkyūsha): IWASHITA Yoshihisa 京都大学, 化学研究所, 准教授 (00144387) ; HARADA Hideo 日本原子力研究開発機構, 原子力基礎工学部門, 研究主席 (80421460)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 中性子光学 / 熱外中性子 / パルス中性子ビーム / スピン光学

Outline of Final Research Achievements

Applicability of neutron spin flip chopper to the suppression of the neutron velocity width in epithermal energy region was evaluated for the pulsed neutron beam from the spallation source of Japan Proton Accelerator Research Complex. The possible intensity was estimated in the energy range up to 200 eV mainly for the general application in material researches. The result was reported to KENS and the scientific merit is under discussion.
Additional developments on epithermal neutron polarizer and advanced neutron guide with extremely large reflection critical angle are necessary for achieving the estimated performance. Both of these techniques are valuable common to general neutron researches and we are considering to start the development researches.

Free Research Field

素粒子原子核物理学