TY - JOUR
T1 - TeO2–SiO2–B2O3 glasses doped with CeO2 for gamma radiation shielding and dosimetry application
AU - D'Souza, Ashwitha Nancy
AU - Sayyed, M. I.
AU - Karunakara, Naregundi
AU - Al-Ghamdi, Hanan
AU - Almuqrin, Aljawhara H.
AU - Elsafi, M.
AU - Khandaker, Mayeen Uddin
AU - Kamath, Sudha D.
N1 - Funding Information:
The authors express their gratitude to Princess Nourah bint Abdulrahman University Researchers Supporting Project number (PNURSP2022R28), Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/11
Y1 - 2022/11
N2 - Bismuth borosilicate glasses doped with 0.5 mol% of CeO2 and increasing concentration of TeO2 (0–40 mol%) are synthesized by melt quench method with 12500C melting temperature, then coded as BiTe glasses. Theoretical values of parameters related gamma radiation shielding such as linear attenuation coefficient (LAC) and mean free path (MFP) are determined from Phy-X/PSD software in the radiation energy range of 0.015–15 MeV. We have achieved greater density value of around 5 gcm−3 and highest set of LAC values 314–0.2 cm−1 for BiTe-40 glass along with lowest range 0.002–3.8 cm of HVL thickness. On gamma irradiation, there was a notable enhancement in thermoluminescence (TL) intensity for TeO2 content greater than 30 mol% due to increase in density of trap centres. CeO2 incorporation has also contributed to increasing density of trap centres. The kinetic parameters were evaluated with the help of glow curve deconvolution technique from which the calculated activation energy was highest (1.652 eV) for BiTe-40 glass with longer lifetime (6.34 × 106 years) of charges trapped in high temperature region of 559 K.
AB - Bismuth borosilicate glasses doped with 0.5 mol% of CeO2 and increasing concentration of TeO2 (0–40 mol%) are synthesized by melt quench method with 12500C melting temperature, then coded as BiTe glasses. Theoretical values of parameters related gamma radiation shielding such as linear attenuation coefficient (LAC) and mean free path (MFP) are determined from Phy-X/PSD software in the radiation energy range of 0.015–15 MeV. We have achieved greater density value of around 5 gcm−3 and highest set of LAC values 314–0.2 cm−1 for BiTe-40 glass along with lowest range 0.002–3.8 cm of HVL thickness. On gamma irradiation, there was a notable enhancement in thermoluminescence (TL) intensity for TeO2 content greater than 30 mol% due to increase in density of trap centres. CeO2 incorporation has also contributed to increasing density of trap centres. The kinetic parameters were evaluated with the help of glow curve deconvolution technique from which the calculated activation energy was highest (1.652 eV) for BiTe-40 glass with longer lifetime (6.34 × 106 years) of charges trapped in high temperature region of 559 K.
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U2 - 10.1016/j.radphyschem.2022.110233
DO - 10.1016/j.radphyschem.2022.110233
M3 - Article
AN - SCOPUS:85130950800
SN - 0969-806X
VL - 200
JO - Radiation Physics and Chemistry
JF - Radiation Physics and Chemistry
M1 - 110233
ER -