Dosimetry with HgI2

Abstract

The possibility of using HgI₂ as a survey dosimeter with a tissue-equivalent response in the energy range 1 keV to 1 MeV is theoretically investigated and discussed. The response function of HgI₂ is evaluated and checked with experimental data. HgI₂ with an energy threshold, in the counting mode, can have a reasonable tissue-equivalent response in the range 100–600 keV with a minimum detectable exposure rate of about 20 μR/h.