The response of alanine to a 150 keV X-ray beam

被引：25

作者：

Zeng, GG ^{[1
]}

McCaffrey, JP ^{[1
]}

机构：

[1] Natl Res Council Canada, Ionizing Raidat Stand, Ottawa, ON K1A 0R6, Canada

来源：

RADIATION PHYSICS AND CHEMISTRY | 2005年 / 72卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

alanine/EPR; air-kerma; energy response;

D O I：

10.1016/j.radphyschem.2004.05.044

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：

The alanine/electron paramagnetic resonance (EPR) dosimetry system was used to measure a 150 keV X-ray quality, and the response was compared to Co-60 gamma-ray measurements using the same system. The absorbed dose-to-alanine per unit air-kerma for the two beam qualities were calculated with the EGSnrc Monte Carlo code. The measured and calculated results were combined to derive the relationship of the alanine/EPR response to the absorbed dose-to-alanine. We found a 16.1% (+/-0.8) reduction in alanine/EPR response to air-kerma for the 150 keV X-rays relative to the Co-60 gamma-rays, and a 5.7% (+/-0.8) reduction in alanine/EPR response to the absorbed dose-to-alanine. The results support an earlier published prediction. Crown Copyright (C) 2004 Published by Elsevier Ltd. All rights reserved.

引用

页码：537 / 540

页数：4

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