The spectral distribution of the response of the TlInSe2 non-linear γ-ray detector

The spectral distribution of the response of the TlInSe2 gamma-ray detector was calculated using the Monte Carlo method. Non-linearity of the ampere-watt characteristic (AWC) of the detector and the inhomogeneity of radiation absorption in the crystal were corrected by means of the coefficient s less than or equal to 1, which depends on gamma-quantum energy, crystal thickness and the AWC shape. This method of correction is legitimate when the diffusion effect on distribution of non-equilibrium charge carriers in the semiconductor volume is not considerable. Comparison of the calculated and experimental data was carried out in the 0.02-1.25 MeV range. (C) 1998 Elsevier Science B.V. All rights reserved.