Monte Carlo calculation of dose point kernel and absorbed dose distribution for electrons and photons

CHEN Shaowen1 HUANG Long1 WU Muying1 TANG Qiang2 LIU Xiaowei2 ZHANG Chunxiang2 1

doi:10.11889/j.0253-3219.2013.hjs.36.070205

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Monte Carlo calculation of dose point kernel and absorbed dose distribution for electrons and photons

更新时间：2021-03-05

- Monte Carlo calculation of dose point kernel and absorbed dose distribution for electrons and photons
- NUCLEAR TECHNIQUES Vol. 36, Issue 7, Article number: 070205(2013)
- 作者机构：
  
  1. 东莞理工学院
  2. 中山大学物理科学与技术学院
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2013.hjs.36.070205
  CLC： TL72
- Published：01 July 2013
- 稿件说明：
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[1]陈少文,黄龙,吴木营,唐强,刘小伟,张纯祥.电子和光子剂量点核和吸收剂量分布的蒙特卡罗计算[J].核技术,2013,36(07):44-48.

CHEN Shaowen1 HUANG Long1 WU Muying1 TANG Qiang2 LIU Xiaowei2 ZHANG Chunxiang2 1. Monte Carlo calculation of dose point kernel and absorbed dose distribution for electrons and photons[J]. Nuclear techniques, 2013, 36(7): 070205
[1]陈少文,黄龙,吴木营,唐强,刘小伟,张纯祥.电子和光子剂量点核和吸收剂量分布的蒙特卡罗计算[J].核技术,2013,36(07):44-48. DOI： 10.11889/j.0253-3219.2013.hjs.36.070205.

CHEN Shaowen1 HUANG Long1 WU Muying1 TANG Qiang2 LIU Xiaowei2 ZHANG Chunxiang2 1. Monte Carlo calculation of dose point kernel and absorbed dose distribution for electrons and photons[J]. Nuclear techniques, 2013, 36(7): 070205 DOI： 10.11889/j.0253-3219.2013.hjs.36.070205.

摘要

用EGSnrc蒙特卡罗程序计算能量为1MeV的电子和32P、90Y和131I放射性核素的刻度剂量点核

计算能量为0.2MeV、4MeV的电子和32P、90Y放射性核素均匀分布在质量为10 2 103g的水球体中的吸收分数

计算活度为1 MBq/cm3的32P、90Y、131I放射性核素以及15 keV、30 keV、100 keV单能光子均匀分布在水（肿瘤）球壳（0.22 r 0.66cm）时的径向剂量率分布

并与国内外其它计算结果相比较。结果可为放射性核素治疗剂量计算提供参考。

Abstract

Background: The dose point kernel and the absorbed fraction are essential in the absorbed dose calculation for radionuclide therapy.Purpose: To calculate the scaled dose point kernels for 1 MeV monoenergetic electrons and32P

90Y

131I radionuclides

the absorbed fractions for 0.2 MeV and 4 MeV monoenergetic electrons and 32P

90Y radionuclides which uniformly distributed in water spheres of various mass ranging from 10 2to 103g

and the radial distributions of absorbed dose rates for 32P

131I

90Y nuclides and 15 keV

30 keV

100 keV photons which uniformly distributed in a water(tumor) spherical shell(0.22 r 0.66 cm) with an activity of 1 MBq/cm3.Methods: EGSnrc Monte Carlo programs were used for simulation.Results: The calculation results were compared with those of other works.Conclusions: The results could give some help to absorbed dose calculations for radionuclide therapy.

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