Spectral measurements of quasi-monoenergetic neutron fields generated from 7Li(p,n) reactions using multiple experimental methods

2015 Fiscal Year Final Research Report

• Project/Area Number: 25871197
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: General applied physics; Quantum beam science
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Masuda Akihiko 国立研究開発法人産業技術総合研究所, 分析計測標準研究部門, 研究員 (70549899)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 加速器 / 放射線 / 中性子 / 校正 / 高エネルギー中性子

Outline of Final Research Achievements

Spectral measurement techniques for low-energy components of quasi-monoenergetic high-energy neutron field were developed. Spectral information of the high-energy neutron field above about 100 keV was derived, for the first time, by the time-of-flight method using two types of scintillation detector. Unfolding method for whole-energy neutron spectrometry was performed using gold-activation Bonner sphere spectrometer which is developed to deal with some difficulties of using ordinary proportional counters in the high-energy neutron field. In addition, benchmark experiments of response calibration of neutron detectors were performed to investigate the suitability of calibration method and its dependence on characteristics of detectors and facilities.

Free Research Field

放射線