TY - JOUR
T1 - Study of Dosimetric properties of LiB3O5:Ag using the OSL/TA-OSL method for Medical Radiation Application
AU - Sahil,
AU - Natanasabapathi, Gopishankar
AU - Shyleshan, Sourab
AU - Kumar, Rajesh
AU - Yadav, Mukesh Kumar
AU - Kaushik, Aruna
AU - Kumar, Pratik
N1 - Publisher Copyright:
© The Minerals, Metals & Materials Society 2024.
PY - 2025/1
Y1 - 2025/1
N2 - Due to numerous characteristics (chemical stability, optical transparency, etc.), tissue equivalency, and other factors, lithium borates are an appropriate material for radiation dosimetry. This work explores the optical stimulated luminescence (OSL) dosimetry of lithium triborate (LiB3O5) doped with Ag. Here, we have used thermally-assisted OSL (TA-OSL), where OSL is recorded following thermal stimulation of the sample, to assess the presence of primary dosimetric and deep defects. The optimized elevated temperature for LiB3O5:Ag was found to be 100°C corresponding to maximum TA-OSL intensity due to depletion of its filled traps (indicating deep defects). X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDS), and ultraviolet–visible (UV-Vis) spectrophotometry were all used to characterized the structural and chemical properties of the sample. Along with other OSL characteristics like fading and repeatability, response of the obtained nanophosphor under CW-OSL with x-ray photons and electrons of a range of energies including cobalt-60 in radiotherapy has also been examined.
AB - Due to numerous characteristics (chemical stability, optical transparency, etc.), tissue equivalency, and other factors, lithium borates are an appropriate material for radiation dosimetry. This work explores the optical stimulated luminescence (OSL) dosimetry of lithium triborate (LiB3O5) doped with Ag. Here, we have used thermally-assisted OSL (TA-OSL), where OSL is recorded following thermal stimulation of the sample, to assess the presence of primary dosimetric and deep defects. The optimized elevated temperature for LiB3O5:Ag was found to be 100°C corresponding to maximum TA-OSL intensity due to depletion of its filled traps (indicating deep defects). X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDS), and ultraviolet–visible (UV-Vis) spectrophotometry were all used to characterized the structural and chemical properties of the sample. Along with other OSL characteristics like fading and repeatability, response of the obtained nanophosphor under CW-OSL with x-ray photons and electrons of a range of energies including cobalt-60 in radiotherapy has also been examined.
KW - Dosimeter
KW - linear accelerator (LINAC)
KW - thermal-assisted optically-stimulated luminescence (TA-OSL)
UR - http://www.scopus.com/inward/record.url?scp=85208124480&partnerID=8YFLogxK
U2 - 10.1007/s11664-024-11544-5
DO - 10.1007/s11664-024-11544-5
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AN - SCOPUS:85208124480
SN - 0361-5235
VL - 54
SP - 180
EP - 190
JO - Journal of Electronic Materials
JF - Journal of Electronic Materials
IS - 1
ER -