Dosimetric properties of Tb-doped MgAl₂O₄ single crystals

Abstract

The photoluminescence (PL), scintillation, and dosimetric properties of Tb-doped MgAl2O4 single crystals were evaluated. In terms of PL and scintillation properties, the Tb-doped crystals showed some emission peaks ascribed to the 4f–4f transitions of the Tb3+ ion. In addition, the optically and thermally stimulated luminescence (OSL and TSL) spectra showed emission peaks considered to be due to the Tb3+ ion. TSL dose response functions were also evaluated, and the Tb-doped crystals showed linear responses from 0.01 mGy.

Photoluminescence and scintillation properties of Ce-substituted Pr2Si2O7 crystal scintillators

“…The X-ray-induced scintillation spectra were measured using our original setup as described in the previous report. 31) The X-ray-induced scintillation decay time curves were measured by a combination of the quartz fiber (Asahi Spectra) and our original setup illustrated in the previous report 37) γ-ray-induced pulse height spectra were evaluated to estimate scintillation light yield. The measurement was conducted by the same method described in the previous report.…”

Dosimetric properties of MgAl2O4transparent ceramics doped with Ce

“…For the above reasons, we have evaluated TSL properties of MAS doped with some types of dopants. [5][6][7][8][9][10] Moreover, other researchers have studied undoped, Dy, Tb, and carbon-doped MAS as TSL materials. [11][12][13][14][15][16][17][18] In this study, MAS transparent ceramics doped with Ce were prepared by the spark plasma sintering (SPS) technique as the material for personal dosimetry.…”

Characterization of Tm Concentration Dependence of Dosimetric Properties of NaMgF3

“…In this study, we synthesized NaMgF 3 crystals with various concentrations of Tm and investigated the Tm concentration dependence of the OSL and TSL properties. Scintillation, which is instantaneous radiation-induced luminescence, properties were also evaluated because the relationship between storage-type luminescence and scintillation has recently been reported, (19,20) although these phenomena were previously regarded as independent. Thus, the evaluation of both phenomena is important to understand ionizing-radiation-induced luminescence phenomena.…”