THE AIR-KERMA RATE-CONSTANT OF IR-192

被引：0
|
作者：
NINKOVIC, MM
RAICEVIC, JJ
机构：
[1] Institute of Nuclear Sciences “Vinca”, Belgrade
来源：
HEALTH PHYSICS | 1993年 / 64卷 / 01期
关键词：
IR-192; GAMMA-RADIATION; DOSIMETRY; GAMMA; RADIOACTIVITY; AIRBORNE;
D O I：
10.1097/00004032-199301000-00011
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The air-kerma rate constant GAMMA(delta) (and its precursors), as one of the basic radiation characteristics of Ir-192, was determined by many authors. Analysis of accessible data on this quantity led us to the conclusion that published data strongly disagree. That is the reason we calculated this quantity on the basis of our and many other authors' gamma-ray spectral data and the latest data for mass energy-transfer coefficients for air. In this way, a value was obtained for GAMMA(delta) of 30.0 +/- 0.9 a Gy m2 s-1 Bq-1 for an unshielded Ir-192 source and 27.8 +/- 0.9 a Gy m2s -1Bq-1 for a standard packaged radioactive source taking into account attenuation of gamma rays in the platinum source wall.
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页码：79 / 81
页数：3
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