[2H01-06] Neutron Measurement

[2H01] High-dose response characteristics of a personal neutron dosimeter with PADC

*Hashimoto Suki^1,2, Sakuma syuhei¹, Hosomi Kenji¹, Watanabe Yuki¹, Unno Motoyoshi¹, Takashima Hideki¹ (1. JAEA, 2. CTC)

Keywords:personal neutron dosimeter, solid state track detector, CR-39, PADC, high dose

The standards for passive neutron personal dosimeters do not cover high-dose exposures such as criticality accidents, and the upper limit of the dose for personal neutron dosimeters is 20 mSv. On the other hand, the upper limit of dose during emergency work was raised to 250 mSv during the TEPCO Fukushima Daiichi Nuclear Power Plant accident caused by the Great East Japan Earthquake, so it is desirable that personal neutron dosimeters be able to support the upper limit of 250 mSv. In this study, we confirmed the availability of neutron dose evaluation of 250 mSv by irradiating neutron personal dosimeter using PADC detector called CR-39 with up to 300 mSv.