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Development of Electronic Personal Dosimeter with Hybrid Preamplifier using Semiconductor Detector  

Lee, B.J. (Korea Atomic Energy Research Institute)
Kim, B.H. (Korea Atomic Energy Research Institute)
Chang, S.Y. (Korea Atomic Energy Research Institute)
Kim, J.S. (Korea Atomic Energy Research Institute)
Rho, S.R. (The University of Seoul)
Publication Information
Journal of Radiation Protection and Research / v.27, no.1, 2002 , pp. 51-57 More about this Journal
Abstract
An electronic personal dosimeter(EPD) with hybrid type preamplifier adopting a semiconductor detector as a radiation detector has been developed, manufactured and test-evaluated. The radiation detection characteristics of this EPD has been performance-tested by using a reference photon radiation field. After several test-irradiations to a $^{137}Cs$ gamma radiation source the radiation detection sensitivity of this EPD appeared to be $3.8\;cps/Gy{\cdot}h^{-1}$. The linearity of radiation response was kept within 8% of the dose equivalent ranges of $10{\mu}Sv{\sim}4Sv$ and the angular dependence was under less than 4% in angles of ${\pm}60^{\circ}$. It was confirmed that the energy response range was in $60{\sim}1,250keV$ given in the ISO standard. This EPD satisfied the international criteria for the EPD in the mechanical and the environmental performance test for 9 test categories according to IEC 61526.
Keywords
Semiconductor detector; Personal Dosimeter; Sensitivity; Performance test;
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