Dependence of the X-Ray Dosimetric Parameters of AgGaS2xSe2-2x Single Crystals on Their Composition

It is demonstrated that AgGaS2x Se-2 (-) (2x) single crystals grown by the chemical transport method are characterized by high X-ray conductivity and X-ray sensitivity coefficients at room temperature. The X-ray dosimetric parameters of crystals are compared. For example, the X-ray conductivity coefficient of AgGaS2 samples varies within the range of 0.22-3.20 min/R at effective radiation hardness V-a = 25-50 keV and dose rate E = 0.75-78.05 R/min. Single-crystalline AgGaSe2 samples have higher X-ray dosimetric coefficients than AgGaS2-based samples. The X-ray conductivity coefficient of AgGaSe2 varies within the range of 1.2-8.5 min/R at effective radiation hardness V-a = 25-50 keV and dose rate E = 0.75-31.3 R/min. The dose dependences of steady-state X-ray current in AgGaS2x Se-2 (-) (2x) are determined.