Development of dosimeter for severe radiation environment near reactor pressure vessel

Abstract

We proposed a compact and radiation-tolerant dosimeter without power supply using the solar cells such as CdTe, Cu(In,Ga)Se₂ (CIGS), and InGaP solar cells. In the CdTe solar cells, linear increase in current due to ⁶⁰Co gamma-ray absorption was confirmed. The change rate of current density increased with increase in the reverse bias voltage, probably due to the increase in the depletion layer width.