Development of novel personal dosemeter based on fluorescent nuclear track detector for neutrons, charged particles and gamma-rays

2015 Fiscal Year Final Research Report

• Project/Area Number: 24360396
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Kobe University
• Principal Investigator: ODA Keiji 神戸大学, 海事科学研究科(研究院), 教授 (40169305)
• Co-Investigator(Kenkyū-buntansha): YAMAUCHI Tomoya 神戸大学, 大学院海事科学研究科, 教授 (40211619) ; TASUDA Nakahiro 福井大学, 国際原子力工学研究所, 教授 (30392244) ; KODAIRA Satoshi 放射線医学総合研究所, 研究基盤センター, 研究員 (00434324) ; TANIMURA Yoshihiko 日本原子力研究開発機関, 原子力科学研究所, 副主任研究員(当時) (20354714)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 蛍光飛跡検出器 / 飛跡イメージング / 中性子用ラジエータ / 線量計

Outline of Final Research Achievements

We have challenged to develop an all-mighty dosemeter, with which total dose-equivalent is measurable for photons, charged particles and neutrons. One of most promising detector element is Mg-doped aluminum oxide single crystal.
Two important problems are to develop a technique for imaging nuclear tracks recorded in the element, and to construct a suitable radiator for efficient neutron detection. The former has been solved in this study by improving a technique for fast acquisition for each nuclear track, and improvement of algorism for processing each track. As to the latter, we applied the unfolding technique developed by the author, and we have designed multi-layer type radiator composed of PE (polyethylene), PI (poly-imide), Al and PI plastic.

Free Research Field

放射線計測