Effective atomic numbers for some calcium-strontium-borate glasses

被引：72
作者：
Sharma, Renu [1 ]
Sharma, Vandana [1 ]
Singh, Parjit S. [2 ]
Singh, Tejbir [1 ]
机构：
[1] Maharishi Markandeshwar Univ, Dept Phys, Mullana 133207, Haryana, India
[2] Punjabi Univ, Dept Phys, Patiala 147002, Punjab, India
来源：
ANNALS OF NUCLEAR ENERGY | 2012年 / 45卷
关键词：
Effective atomic number; Calcium-strontium-borate glasses; GAMMA-RAY ATTENUATION; ESSENTIAL AMINO-ACIDS; TRANSMISSION METHOD; PHOTON ENERGY; ABSORPTION; COEFFICIENTS; BI2O3; BAO;
D O I：
10.1016/j.anucene.2012.03.005
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：
Effective atomic number acts as a fundamental property of compounds and mixtures and it plays a vital role in the computation of various dosimetric parameters such as buildup factor, effective dose and heat generation. Effective atomic numbers have been computed in the energy range from 1 keV to 100 GeV for different chemical compositions of calcium-strontium-borate glasses. The effective atomic number values have been computed and compared by two different methods ((a) ratio of atomic to electron cross-section and (b) logarithmic interpolation of molecular cross-section values). It has been observed that in the lower energy region, two interpolation regions occur for all the selected glasses, which results in two effective number values at the same energy. Hence, experimental verification of effective atomic number is required in the lower energy region. (c) 2012 Elsevier Ltd. All rights reserved.
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页码：144 / 149
页数：6
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