Characteristics of the voxel S values of nuclide <sup>153</sup>Sm

CHEN Lixin1; 2 YOU Rian2 FAN Wei1 GAN Feng1; 2 LIU Xiaowei1 1

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Characteristics of the voxel S values of nuclide ¹⁵³Sm

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- Characteristics of the voxel S values of nuclide ¹⁵³Sm
- NUCLEAR TECHNIQUES Issue 11, (2006)
- 作者机构：
  
  1. 中山大学理工学院
  2. 中山大学肿瘤防治中心
  3. 中山大学理工学院广州510275中山大学肿瘤防治中心广州,510060
- 作者简介：
- 基金信息：
  
  广东省自然科学基金(031563);高等学校博士点基金(20050558034)资助
- DOI：
  CLC： R817
- Published：01 November 2006
- 稿件说明：
移动端阅览
[1]陈立新,游日安,樊卫,干峰,刘小伟.核素~(153)Sm体素S因子特性的研究[J].核技术,2006(11):845-849.

CHEN Lixin1, 2 YOU Rian2 FAN Wei1 GAN Feng1, 2 LIU Xiaowei1 1. Characteristics of the voxel S values of nuclide ¹⁵³Sm[J]. Nuclear techniques, 2006, (11): 845-849.
[1]陈立新,游日安,樊卫,干峰,刘小伟.核素~(153)Sm体素S因子特性的研究[J].核技术,2006(11):845-849. DOI：

CHEN Lixin1, 2 YOU Rian2 FAN Wei1 GAN Feng1, 2 LIU Xiaowei1 1. Characteristics of the voxel S values of nuclide ¹⁵³Sm[J]. Nuclear techniques, 2006, (11): 845-849. DOI：

摘要

基于体素S因子计算个体化病例的三维剂量是目前核医学研究的一个重要方向。153Sm是目前骨转移治疗常用的核素之一。本文利用EGS4蒙特卡罗程序包构建了基于体素的三维吸收剂量分布模拟程序

计算了不同情况下153Sm的S因子

探讨了介质成分和物理密度对S因子的影响。结果表明:1)不同物理密度对S因子有明显影响;2)在相同物理密度的情况下

不同介质对S因子的影响相对较小。计算结果为基于体素S因子计算核素治疗的三维剂量提供了参考

明确了在不考虑介质和物理密度差异时S因子的误差。

Abstract

The calculation of three dimensional dose distributions of radionuclide therapy based on the voxel S val- ues is very important in the nuclear medicine domain. 153Sm is one of the nuclides often used for bone metastasis therapy. The S values of 153Sm in different conditions were calculated based on the program of 3D voxel dose calcula- tion built on the Monte Carlo package EGS4. The influences of both material composition and density on the S value were discussed. It is shown that there are obvious influences of material densities on the S value

and while the den- sity is the same

there are fewer influences of material composition on the S value. The calculation could give some help to the 3D voxel dose calculations for radionuclide therapy. The work also indicated the ranges of error of the S values while disregarding the influence of material density and compositions.

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Characteristics of the voxel S values of nuclide 153Sm

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摘要

Abstract

关键词

Keywords

references

Characteristics of the voxel S values of nuclide ¹⁵³Sm