A comparison of Monte Carlo and analytic first scatter dose spread arrays.
A comparison of Monte Carlo and analytic first scatter dose spread arrays.
复制标题
蒙特卡罗和解析第一散射剂量扩散阵列的比较。
DOI:
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发表时间:
1999
期刊:
影响因子:
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通讯作者:
T. Mackie
中科院分区:
文献类型:
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作者:
J. McGary;A. Boyer;T. Mackie
We compare first scattered point dose spread arrays generated by Monte Carlo and an analytic method. The analytic method models energy deposition using Klein-Nishina cross sections for Compton scatter and approximations for electron transport. Assumptions in the analytic method are shown to be valid within a region of the point dose spread kernel in which meaningful comparisons can be made. Differences between the models are less than 10% for the forward scatter directions for radii greater than the electron range associated with the first scattered Compton photon. Differences in the backscatter region are discussed and indicate that the analytic model is useful for identifying large errors that might be present in numerically generated first scatter point dose spread arrays. The analytic method is simple and useful for validating first scatter kernels.
影响因子:
3.8
作者:
McGary,JE;Boyer,AL
通讯作者:
Boyer,AL
影响因子:
3.8
作者:
Yu,CX;Mackie,TR;Wong,JW
通讯作者:
Wong,JW