Dosimetric properties of dysprosium doped lithium borate glass irradiated by 6 MV photons

被引：17

作者：

Ab Rasid, A. ^{[1
]}

Wagiran, H. ^{[1
]}

Hashim, S. ^{[1
]}

Ibrahim, Z. ^{[1
]}

Ali, H. ^{[2
]}

机构：

[1] Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu 81310, Johor Darul Tak, Malaysia

[2] Hosp Sultan Ismail, Oncol Treatment Ctr, Johor Baharu 81100, Johor Darul Tak, Malaysia

来源：

RADIATION PHYSICS AND CHEMISTRY | 2015年 / 112卷

关键词：

Thermoluminescence dosimetry; Lithium borate glass; Dysprosium-doped; Low dose 6 MV photon irradiation; Sensitivity; Linearity;

D O I：

10.1016/j.radphyschem.2015.02.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Undoped and dysprosium doped lithium borate glass system with empirical formula (70-x) B2O3-30 Li2O-(x) Dy2O3 (x=0.1, 0.3, 0.5, 0.7, 1.0 mol%) were prepared using the melt-quenching technique. The dosimetric measurements were performed by irradiating the samples to 6 MV photon beam using linear accelerator (LINAC) over a dose range of 0.5-5.0 Gy. The glass series of dysprosium doped lithium borate glass produced the best thermoluminescence (TL) glow curve with the highest intensity peak from sample with 1.0 mol% Dy2O3 concentration. Minimum detectable dose was detected at 2.24 mGy, good linearity of regression coefficient, high reproducibility and high sensitivity compared to the undoped glass are from 1.0 mol% dysprosium doped lithium borate glass. The results indicated that the series of dysprosium doped lithium glasses have a great potential to be considered as a thermoluminescence dosimetry (TLD). (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：29 / 33

页数：5

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