Development of innovative technique for determining elemental and isotopic contents by using high intense pulsed neutrons and continuous neutrons

2016 Fiscal Year Final Research Report

• Project/Area Number: 25246038
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: Ebihara Mitsuru 首都大学東京, 理工学研究科, 教授 (10152000)
• Co-Investigator(Kenkyū-buntansha): 藤 暢輔 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門・原子力基礎工学研究センター, 研究主幹 (60354734) ; 松尾 基之 東京大学, 総合文化研究科, 教授 (10167645) ; 三浦 勉 国立研究開発法人産業技術総合研究所, 物質計測標準研究部門, 研究グループ長 (70371078) ; 千葉 光一 国立研究開発法人産業技術総合研究所, 計測標準研究部, 部門長 (20281066)
• Co-Investigator(Renkei-kenkyūsha): KIMURA Atsushi 日本原子力研究開発機構, 核データ研究グループ, 研究副主幹 (30360423) ; KIMURA Atsushi 首都大学東京, 理工学研究科, 准教授 (90291567) ; SHOZUGAWA Katsumi 東京大学, 総合文化研究科, 助教 (00507923) ; MIURA Tsutomu 産業技術総合研究所, 計測標準研究部門, 研究室長 (70371078)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 非破壊元素分析 / 即発ガンマ線分析 / 中性子共鳴捕獲分析 / TOF-PGA / J-PARC / MIF / ANNRI

Outline of Final Research Achievements

We developed a novel non-destructive analytical technique that combines prompt gamma-ray analysis (PGA) and time-of-flight elemental analysis (TOF) by using an intense pulsed neutron beam at the Materials and Life Science Facility of Japan Proton Accelerator Research Complex. It allows us to obtain analytical results from the both methods at the same time. In addition, it can be used to quantify elemental concentrations in the sample, to which neither of these methods can be applied independently. A simple and accurate correction method for practical use was also developed for data processing in the TOF-PGA analysis. The effectiveness and the usefulness of the developed TOF-PGA method were confirmed by measuring of a composite reference sample. Moreover, its applicability was validated by analyzing of representative materials in several fields, such as cosmochemistry and environmental science.

Free Research Field

宇宙化学、放射化学、分析化学