Development of a portable small alpha particle detector to enable measurement for narrow spaces

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K21618
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear engineering; Risk sciences of radiation and chemicals
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: Morishita Yuki 国立研究開発法人日本原子力研究開発機構, バックエンド研究開発部門 核燃料サイクル工学研究所 放射線管理部, 研究員 (20631401)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: プルトニウム汚染 / ラドン子孫核種 / α線 / シリコンフォトマル / 狭隘部 / グローブボックス

Outline of Final Research Achievements

We developed a portable small alpha particle detector for measurement of Plutonium contamination in narrow spaces, and it was valuable for a clearance of nuclear facilities. This detector was thin and enabled alpha-particle measurement in narrow spaces by a flexible arm. It has sufficient detection efficiency and acquire 2-dimensional distribution and energy spectrum of alpha particle. Also, we confirmed that it could distinguish Radon progeny from Plutonium. A paper of this result was published on a journal of radiation measurement.

Free Research Field

総合工学