WATER-EQUIVALENT SOLID STANDARD SOURCES

被引：16

作者：

SAHAGIA, M

GRIGORESCU, EL

机构：

[1] Institute for Physics and Nuclear Engineering, Bucharest

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1992年 / 312卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(92)90161-V

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Water-equivalent volume standard sources are used for the calibration of gamma spectrometry systems for measuring the radioactivity of solutions and food at the environmental level. A quantitative procedure of obtaining volume sources, by polymerization by irradiation, was used. The sources have the following main characteristics: effective atomic number of the matrix 3.7, nominal density 1.08 g cm-3, radionuclides Ba-133, Cs-134, Cs-137, Eu-152, Am-241; activity range 100-5000 Bq, uncertainty 1.5-3.5%, uniformity better than 2.5%. The sources are cylindrical in shape.

引用

页码：236 / 239

页数：4

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