UDC 539.1.074

Selection of semiconductor material for gamma-radiation detectors

A. S. Abyzov, V. M. Azhazha, L. N. Davydov,
G. P. Kovtun, V. E. Kutny, A. V. Rybka

Among the semiconductor crystals employed in spectrometers and dosimeters the leading positions belongs to the wide-gap compounds Cd_1-xZn_xTe, CdTe, HgI₂. The question arises whether it is the final and optimal choice. In an attempt to answer it, physical parameters, crucial for detector performance were selected. They include, first of all, mobility, lifetime, mean atomic number, and resistivity. An analysis of binary compounds with tetrahedral structure was done on the basis of the selected parameters.

Ukraine, National Science Center «Kharkov Institute of Physics and Technology».