Scintillation and Dosimetric Properties of KHSi2O5 Single Crystals Fabricated by the Hydrothermal Method

Undoped and 0.1% Tb-doped KHSi 2 O 5 single crystals were synthesized by the hydrothermal method, and their scintillation and dosimetric properties were systematically investigated.The scintillation spectra of the Tb-doped KHSi 2 O 5 single crystal exhibited an emission peak at 330 nm originating from the host material and additional peaks in the 490-620 nm range, corresponding to the 4f-4f transitions of Tb 3+ ions.The thermally stimulated luminescence (TSL) glow curves showed two peaks at approximately 80 and 300 C for all the Tb-doped samples.In the TSL dose response of the Tb-doped sample, the lowest detectable dose was 30 mGy, and a linear dose response was observed over the dose range of 30-3000 mGy.