The calculation of the detection efficiency in the calibration of gross alpha-beta systems

被引：14
作者：
Calin, Marian Romeo [1 ]
Druker, Alexandru Erminiu [2 ]
Radulescu, Ileana [1 ]
机构：
[1] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Magurele 077125, Ilfov, Romania
[2] Natl Inst Metrol, Bucharest, Romania
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2013年 / 295卷 / 01期
关键词：
Gross alpha; Gross beta; Calibration; Efficiency; Activity; WATER; SAMPLES;
D O I：
10.1007/s10967-012-1848-1
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This paper presents a method for efficiency calibration of a measuring alpha-beta system PROTEAN ORTEC, MPC-2000-DP, using standard radioactive sources. The system is used to measure gross alpha-beta activity concentrations in environmental samples. The calculated efficiencies of detection were subsequently introduced in the system for two working geometries: measuring geometry-gross alpha-beta = 31,37 +/- A 0.25 (%)-the alpha efficiency and = 44.94 +/- A 0.69 (%)-the beta efficiency, where the spillover factor is = 25.59 +/- A 0.50 (%) and measuring geometry up alpha-beta = 36.23 +/- A 0.29 (%)-the alpha efficiency and = 48.53 +/- A 0.74 (%)-the beta efficiency, where the spillover factor is = 31.08 +/- A 0.60 (%).
引用
收藏
页码：283 / 288
页数：6
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