CALIBRATING AND TESTING TISSUE-EQUIVALENT PROPORTIONAL-COUNTERS WITH AR-37

被引：5

作者：

ANACHKOVA, E ^{[1
]}

KELLERER, AM ^{[1
]}

ROOS, H ^{[1
]}

机构：

[1] GSF FORSCHUNGSZENTRUM UNWELT & GESUNDHEIT,INST STRAHLENBIOL,D-85758 OBERSCHLEISSHEIM,GERMANY

来源：

RADIATION AND ENVIRONMENTAL BIOPHYSICS | 1994年 / 33卷 / 04期

关键词：

D O I：

10.1007/BF01210456

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A method for testing and calibrating tissue equivalent proportional counters with Ar-37 is described. Ar-37 is produced by exposure of argon in its normal isotope composition to thermal neutrons. It is shown that - up to volume ratios of 0.01 of argon to the tissue equivalent gas - there is no appreciable effect of the argon admixture on the function of the proportional counter. Conventional calibration methods with characteristic x-rays or with alpha-particles require modifications of the detectors, and they test only small sub-volumes in the counters. In contrast, argon permits calibrations and tests of the resolution that are representative for the entire counter volume and that do not require changes in detector construction. The method is equally applicable to multi-element proportional counters; it is here exemplified by its application to a long cylindrical counter of simplified design that is part of such a multi-element configuration.

引用

页码：353 / 364

页数：12