Application of extrapolation chambers in low-energy X-rays as reference systems

被引：6
作者：
da Silva, Eric A. B. [1 ]
Caldas, Linda V. E. [1 ]
机构：
[1] IPEN CNEN SP, Comissao Nacl Energia Nucl, Inst Pesquisas Energet & Nucl, BR-05508000 Sao Paulo, Brazil
来源：
APPLIED RADIATION AND ISOTOPES | 2012年 / 70卷 / 07期
基金：
巴西圣保罗研究基金会;
关键词：
Extrapolation chamber; X-radiation; Characterization test; Reference systems; CALIBRATION;
D O I：
10.1016/j.apradiso.2012.03.038
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Extrapolation chambers ace instruments designed to measure doses of low-energy radiations, mainly beta radiation. In this work, a commercial extrapolation chamber and a homemade extrapolation chamber were applied in measurements using standard radiotherapy X-ray beams. Saturation curves and polarity effect as well as short- and medium-term stabilities were obtained, and these results are within the recommendations of the International Electrotechnical Commission (IEC). The response linearity and the extrapolation curves were also obtained, and they presented good behavior. The results show the usefulness of these extrapolation chambers in low-energy X-ray beams. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1411 / 1416
页数：6
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