Dose rate effects on the then-no luminescence properties of HFCVD diamonds

被引：5
作者：
Gastelum, S. [1 ]
Cruz-Zaragoza, E. [2 ]
Favalli, A. [3 ]
Melendrez, R. [1 ]
Chernov, V. [1 ]
Barboza-Flores, M. [1 ]
机构：
[1] Univ Sonora, Ctr Invest Fis, Hermosillo 83190, Sonora, Mexico
[2] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
[3] Commiss European Communities, Joint Res Ctr, Inst Protect & Secur Citizen, I-21020 Ispra, Italy
来源：
DIAMOND AND RELATED MATERIALS | 2008年 / 17卷 / 7-10期
关键词：
CVD diamond films; thermoluminescence; dose rate effects; dosimetry;
D O I：
10.1016/j.diamond.2008.01.088
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of gamma radiation dose rates on the thermoluminescence (TL) properties of hot filament CVD diamonds films, in the 2.4-81.11 Gy/min dose rate range was investigated. The integrated TL increased at the dose rate increased reaching a maximum value at 43.4 Gy min(-1). Dose rate effects were not observed in the TL glow curve shape and kinetics parameters as demonstrated by using a computerized glow curve deconvolution procedure. The diamond films exhibited 3-5% TL reproducibility irrespective of the radiation dose rate used, which is comparable to commercial dosimeter materials. The results indicate that dose rate effects should be taken into consideration when performing dose assessment with HFCVD diamonds, since a given irradiation dose at different dose rates may result in different TL read outs. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1283 / 1287
页数：5
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