[2D06-08] Semiconductor in Radiation Application

[2D06] Development of Compact Sensor with CdS Photoresistor for High Gamma-ray Field Monitoring

*Huy Viet Le¹, Miyamaru Hiroyuki¹, Kojima Takao¹ (1. Division of Quantum and Radiation Engineering, Graduate School of Engineering, Osaka Prefecture University)

Keywords:CdS photoresistor, CsI(Tl) scintillator, Gamma-ray sensor, Radiation exposure

A gamma-ray sensor composed of a cadmium sulfide (CdS) photoresistor and a CsI(Tl) scintillator is developed for intense gamma-ray monitoring. The sensor exhibited radiation-resistant ability and linear output over a wide exposure range. Several experiments were performed with the developed sensor for confirmation of feasibility. The CdS photoresistor shows capability for gamma-ray dosimetry as an inexpensive, robust, compact, and high-sensitivity device.