On some behavioral anomalies in an analytical expression for the solid angle subtended by a circular detector from a symmetrically positioned linear source

被引:2
|
作者
Pagnutti, Christopher [1 ]
Galiano, Eduardo [1 ]
机构
[1] Laurentian Univ, Dept Phys, Sudbury, ON P3E 2C6, Canada
关键词
solid angle; linear source; circular detector; analytical expression for solid angle; limiting geometrical cases; Monte Carlo code;
D O I
10.1016/j.apradiso.2007.08.002
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
We explore the causes of an interesting behavioral anomaly in an analytical result which has been previously derived for the solid angle subtended by a circular detector for a line source in a parallel plane-whose midpoint is coaxial with the detector's center. The anomalous behavior is verified by comparing it to the results produced by a special purpose Monte Carlo code. In addition, the relevant cases of a very large detector, a very long source, a very short source, and a very small detector, are investigated using standard analytical techniques in the theory of limits. We demonstrate that in these limiting cases, the analytical expression correlates well with the Monte Carlo code. These results are presented in analytical, and graphical forms. (C) 2007 Elsevier Ltd. All rights reserved.
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页码:108 / 113
页数:6
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