Challenge for the advanced dosimetry in the various radiation environment with silver-activated phosphate glasses

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14294
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nuclear engineering
• Research Institution: National Institutes for Quantum and Radiological Science and Technology
• Principal Investigator: Kodaira Satoshi 国立研究開発法人量子科学技術研究開発機構, 放射線医学総合研究所 計測・線量評価部, 主任研究員(定常) (00434324)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 線量評価 / 銀活性リン酸塩ガラス / RPL / 核飛跡 / 光学的吸収 / ガンマ線 / 重粒子線

Outline of Final Research Achievements

This work dedicates to the new approach of radiation dosimetry with silver-activated phosphate glasses (hereafter, Ag-glass) for various radiation fields. The Ag-glasses provide three different signals of 1) radio photo luminescence (RPL), 2) nuclear etched-track and 3) optical absorption at specific peak. The combination of these three signals allows us to widen the dynamic range of measuring dose (from 10 uGy to 10 kGy) and LET (linear energy transfer) (>1 MeV/um). A complementary approach for radiation dosimetry by combining three different signals from the Ag-glass will be applicable in various radiation fields.

Free Research Field

放射線物理学