AN ANALYTICAL SIMULATION TO CALIBRATE GAMMA-RAY CYLINDRICAL DETECTORS FOR ENVIRONMENTAL AND RADIOACTIVE WASTE MEASUREMENTS

被引：2
|
作者：
Nafee, Sherif S. [1 ,2 ]
机构：
[1] Univ Alexandria, Dept Phys, Fac Sci, Alexandria 21121, Egypt
[2] King Abdullaziz Univ, Dept Phys, Fac Sci, Jeddah 21589, Saudi Arabia
来源：
NUCLEAR TECHNOLOGY | 2010年 / 172卷 / 02期
关键词：
HPGe detectors; self-attenuation; coincidence summing corrections; INCLUDING SELF-ABSORPTION; COINCIDENCE CORRECTIONS; EFFICIENCY; HPGE;
D O I：
10.13182/NT10-A10906
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The calibration of gamma-ray cylindrical detectors is often required in the analysis of high or low environmental samples and the homogenously distributive nuclear waste drums. Therefore, a new analytical simulation method is proposed in the present work to calculate the full-energy peak efficiencies of high-purity germanium cylindrical detectors using extended sources of low and high volumes. The sources were mounted at three different positions with respect to the detector's axis (coaxial, parallel, and perpendicular), labeled as Position 1, Position 2, and Position 3, respectively. The self-attenuation and the coincidence summing effects at low source-detector distance are also included in the algorithm. A remarkable agreement between the measured and the calculated efficiencies is achieved with discrepancies <4% for the first two positions and between 5 and 7% for the last one.
引用
收藏
页码：211 / 219
页数：9
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