Dependence of the X-ray dosimetric parameters of AgGaS$_{2x}$Se$_{2-2x}$ single crystals on their composition

It is demonstrated that AgGaS$_{2x}$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 AgGaS$_2$ 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 AgGaSe$_2$ samples have higher X-ray dosimetric coefficients than AgGaS$_2$-based samples. The X-ray conductivity coefficient of AgGaSe$_2$ 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 AgGaS$_{2x}$Se$_{2-2x}$ are determined.