光ルミネッセンス測定装置への密封 β 線源の導入と放射線管理

―日本原子力研究開発機構土岐地球年代学研究所での例―

抄録

 An optically stimulated luminescence reader (Risø TL/OSL DA-20) was installed in the Toki Research Institute of Isotope Geology and Geochronology (Toki-shi, Gifu Prefecture), Japan Atomic Energy Agency (JAEA) for dating the geological sample. An accumulated dose in the sample is obtained using the reader. Sealed beta source of strontium-90 is required to be mounted on the reader because repeated artificial irradiation is necessary for the accumulated dose estimation. However, there are not many introduction examples for the reader domestically, and the information as to radiation control of the reader is limited. We therefore report here the process of source loading on the reader and radiation control associated with the use of the source.