Application of the small OSL elements to the ring type dosemeter

Miyauchi, Hideaki ; Yoshitomi, Hiroshi   ; Takahashi, Fumiaki  ; Tachibana, Haruo ; Suzuki, Akifumi; Sato, Yoshitaka*; Kobayashi, Ikuo*

In the Japan Atomic Energy Agency (JAEA), exposures to fingertips can be significant in radiological decontamination at the facilities with mixture fields of beta and (X) rays. The radiation doses to fingertips have been measured by ring type dosemeters equipped with thermoluminescence dosemeters (TLD) in JAEA. We applied small Optically Stimulated Luminescence (OSL) elements to the ring type dosemeter, which has the advantages in the use for long term and repeating in dose measurements comparing to the TLDs. The ring type dosemeter using OSL elements have started operating from 2012.