The impact of γ-irradiation on Cd-B2o3 glass doped WO3 : New evidences by TL and ESR spectroscopy

被引：7

作者：

El-Bayoumi, A. S. ^{[1
]}

Alazab, Huda A. ^{[2
]}

Ezz-ElDin, F. M. ^{[3
]}

机构：

[1] Egyptian Atom Energy Author, Radiat Phys Dept, Natl Ctr Radiat Res & Technol, Cairo, Egypt

[2] Nucl & Radiol Regulatory Author, 3 Ahmed El Zohour sect, Cairo 11762, Egypt

[3] Egyptian Atom Energy Author, Radat Chem Dept, Natl Ctr Radiat Res & Technol, Cairo, Egypt

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2021年 / 551卷

关键词：

Cd-b2o3; glass; Wo3; Thermoluminescence; Esr; Gamma irradiation; PHOTOLUMINESCENCE; NANOPHOSPHOR; PHOSPHOR;

D O I：

10.1016/j.jnoncrysol.2020.120459

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A well resolved Thermoluminescence (TL) glow peak at similar to 168 degrees C was observed in Cd-borate glass doped WO3. The maximum TL intensity was observed for 1.5 mol% of WO3+ doped samples and thereafter decreases. The variation of gamma exposure (0.025 -> 2 kGy) on TL glow curves of Cd-borate glass showed linear and sub-linear behavior supported by track interaction model (TIM). Here gamma-rradiated sample shows the formation of shallow trap (surface trapping) beside the formation of deep trapping. The composition dependence of the g approximate to 1.94 ESR absorption line intensity shows a decrease with increasing WO3 content, which is attributed to a fall in the ratio of the number of unpaired pentavalent ions W5+ ions to the number of W6+ ions. The effect of gamma irra-diation doses on TL and ESR studies show high response with dose which indicates that these glass samples may be useful for TL dosimetry.

引用

页数：8

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