Comparison among alpha-particle energy losses in air obtained from data of SRIM, ICRU and experiments

被引:23
|
作者
Yu, KN [1 ]
Yip, CWY [1 ]
Nikezic, D [1 ]
Ho, JPY [1 ]
Koo, VSY [1 ]
机构
[1] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
关键词
alpha energy; stopping power; air; residual range; SRIM; ICRU49;
D O I
10.1016/S0969-8043(03)00201-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
In the present work, we compare the alpha-particle energy losses in air obtained from experiments and from stopping powers given in Report 49 of the International Commission of Radiation Units and Measurements (ICRU49) and Stopping and Range of Ions in Matter-2000 (SRIM-2000). The alpha energy losses have been experimentally determined for both Am-241 and Th-230 sources using alpha spectroscopy, such losses are observed to deviate significantly from the calculated ones. The deviations suggested that the stopping powers given by SRIM-2000 might be too high and those given by ICRU might be even higher. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:363 / 366
页数:4
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