TY - JOUR
T1 - Novel non-thermoluminescent CaSO4:Dy dosimeters
AU - Castro-Campoy, A. I.
AU - Cruz-Vázquez, C.
AU - Pérez Salas, Raul
AU - Castaño, V. M.
AU - Bernal, R.
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2025/3
Y1 - 2025/3
N2 - The non-thermoluminescence afterglow-based dosimetry performance of self-agglomerating pellet-shaped CaSO4:Dy phosphors synthesized through a low-cost, environmentally friendly method is first reported. Thermoluminescence (TL) and afterglow (AG) were analyzed in samples exposed to beta particle irradiation in the dose range from 0.06 to 8.0 Gy. Characteristic TL glow curves consist of an intense TL maximum at 134 °C, a shoulder at 200 °C, and a maximum at 447 °C. CaSO4:Dy exhibits a highly sensitive AG response for 24 h with linear behavior from 0.06 Gy to 8.0 Gy. A remarkable reproducibility of both the TL and the AG response was observed in repeated irradiation–readout cycles with no need for pre-irradiation annealing. The synthesized CaSO4:Dy exhibits promising properties to be used as an AG-based dosimeter for real-time radiation detection and dosimetry. Moreover, this phosphor might be applied as a long persistent phosphor (LPP), being a cost-effective alternative to other available LPPs.
AB - The non-thermoluminescence afterglow-based dosimetry performance of self-agglomerating pellet-shaped CaSO4:Dy phosphors synthesized through a low-cost, environmentally friendly method is first reported. Thermoluminescence (TL) and afterglow (AG) were analyzed in samples exposed to beta particle irradiation in the dose range from 0.06 to 8.0 Gy. Characteristic TL glow curves consist of an intense TL maximum at 134 °C, a shoulder at 200 °C, and a maximum at 447 °C. CaSO4:Dy exhibits a highly sensitive AG response for 24 h with linear behavior from 0.06 Gy to 8.0 Gy. A remarkable reproducibility of both the TL and the AG response was observed in repeated irradiation–readout cycles with no need for pre-irradiation annealing. The synthesized CaSO4:Dy exhibits promising properties to be used as an AG-based dosimeter for real-time radiation detection and dosimetry. Moreover, this phosphor might be applied as a long persistent phosphor (LPP), being a cost-effective alternative to other available LPPs.
KW - Afterglow-based dosimetry
KW - Beta particle irradiation
KW - CaSO:Dy
KW - Long persistent phosphors
UR - http://www.scopus.com/inward/record.url?scp=85210296435&partnerID=8YFLogxK
U2 - 10.1016/j.apradiso.2024.111606
DO - 10.1016/j.apradiso.2024.111606
M3 - Artículo
C2 - 39612564
AN - SCOPUS:85210296435
SN - 0969-8043
VL - 217
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
M1 - 111606
ER -