CALIBRATION FACTORS FOR GE DETECTORS USED FOR FIELD SPECTROMETRY

被引:83
作者
HELFER, IK [1 ]
MILLER, KM [1 ]
机构
[1] US DOE, ENVIRONM MEASUREMENTS LAB, NEW YORK, NY 10014 USA
来源
HEALTH PHYSICS | 1988年 / 55卷 / 01期
关键词
D O I
10.1097/00004032-198807000-00002
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Calibration factors to convert a measured full-absorption peak count rate to activity in the soil and dose rate in air are given for Ge detectors that are used for field measurements of radionuclides. The appropriate factors for a given detector are derived using three primary parameters: the manufacturer''s quoted efficiency at 1332 keV relative to a 7.6 cm (3 in.) long by 7.6 cm (3 in.) diameter NaI(TI) detector, the detector''s orientation in the field (up or down) and the Ge crystal length/diameter ratio. The accuracy of the results obtained by using this simplified calibration technique is estimated to be 10-15%.
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页码:15 / 29
页数:15
相关论文
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OBRIEN K, 1972, NATURAL RAD ENV 2, V1, P15