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RESEARCH PRODUCT

Efficiency and dynamic range of the photostimulable x-ray storage material KBr:In

Irena PlavinaAija TaleAnatoly I. PopovA. Kalnins

subject

PhysicsDynamic rangePhotostimulated luminescenceAnalytical chemistryBremsstrahlungX-rayIrradiationLuminescenceSaturation (chemistry)PSL

description

By calibrating the photostimulated luminescence (PSL) response with the known intensity of a standard light source, efficiency of the KBr:In powder material to the x- ray bremsstrahlung exposure at room temperature is estimated. At 44 and 85 kV voltages on the x-ray tube, the values of (8 plus or minus 2) multiplied by 10 5 and (18 plus or minus 4) multiplied by 10 5 photons from 1 mm 2 area of the 1 mm thick material are obtained as PSL responses on a 1 mR x-ray exposure, respectively. Under an assumption of the uniform x-ray excitation within the material, the maximum values for the x-ray irradiation dose and the PSL response both corresponding to the upper limit of linearity range are tentatively appraised, using the data for PSL response saturation under UV-irradiation.

https://doi.org/10.1117/12.266511