[en] The purpose of the present work is to study the most important lasing characteristics of single crystals KRS-5 (TlBr-TlJ) and KRS-6 (TlBr-TlCl). The optical, thermal and mechanical characteristics of single crystals KRS have been investigated. The procedure used to measure the linear absorption coefficient lambda the ray stability to short radiation pulses at lambda=10. 6 μ has been described. Typical values of d at room temperature lie in the range (6-10) x 10^-3 cm^-1. The single crystals studied have been shown to have a good transmission over a wide region of IR-spectra. In studying the temperature dependence of the spectral transmission it has been established that in the temperature range from 20 to 200 deg C the transmission remains unchanged. In using the single crystals in the IR-region of the spectrum the material has been estimated as optically homogeneous. The thermal stability of the crystals KRS-5 has been found to depend significantly on their orientation. Single crystals KRS-5 and KRS-6 have satisfactory mechanical characteristics. The measurements of thresholds of the surface and bulk destruction of samples under the influence of both pulsed and continuous irradiation from CO₂ lasers have shown that their material cracks where there are macroscopic defects. These investigations have indicated that thallium halogenides are promising materials for the laser technology in the 10-μ region of the spectrum

No abstract available

[en] The effect of Br^- impurity upon luminescence spectra and the fundamental absorption edge was studied for the TlCl. It has been found that the fundamental absorption edge and photo- and roentgenoluminescence maxima shift lineary towards long wave range as Br^- concentration increasing. The TlCl_1-xBr_x solid solution composition has been shown to be indicated by the luminescence maximum position

No abstract available

[en] Cherenkov shower full absorption γ-spectrometer employing KRS-6 crystal (monocrystal with 80% of TlCl and 20% of TlBr) is designed with a view to ensure higher accuracy of 1 gev energies. The spectrometer is graduated on monoenergetic single electrons within a range of energies of 400-1200 Mev. Energy resolution of the spectrometer varies within this range from 19.5 up to 13%

[en] There is information about the development and investigations into uncooled X-ray and γ-radiation semiconductor detectors on the basis of Bridgman-Stockbarger method grown thallium bromide crystals. Procedure for the preparation of detector structures Me-TlBr-Me (where Me - Au, In) is described, peculiarities of volt-ampere characteristics are investigated. Counting and spectrometric characteristics of manufactured detectors are measured. The best energetic solution was 0.54, 1.3, 1.41, 2.1 and 7.1 keV for the energies 5.9 (⁵⁵Fe), 22.1 (¹⁰⁹Cd), 59.6 (²⁴¹Am), 122 (⁵⁷Co) and 662 keV (¹³⁷Cs) correspondingly

No abstract available