Dosimetry characteristics of Al<sub>2</sub>O<sub>3</sub> in MeV beams

CHEN Shaowen~

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Dosimetry characteristics of Al₂O₃ in MeV beams

更新时间：2021-03-12

- Dosimetry characteristics of Al₂O₃ in MeV beams
- NUCLEAR TECHNIQUES Issue 10, (2008)
- 作者机构：
  
  1. 中山大学物理系
  2. 东莞理工学院电子系
- 作者简介：
- 基金信息：
  
  国家自然科学基金(10675175);高等学校博士点基金(20050558034)资助
- DOI：
  CLC： R144.1
- Published：01 October 2008
- 稿件说明：
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[1]陈少文,唐强,刘小伟.MeV辐射场中Al_2O_3的剂量学特性[J].核技术,2008(10):769-771.

CHEN Shaowen~. Dosimetry characteristics of Al₂O₃ in MeV beams[J]. Nuclear techniques, 2008, (10): 769-771.
[1]陈少文,唐强,刘小伟.MeV辐射场中Al_2O_3的剂量学特性[J].核技术,2008(10):769-771. DOI：

CHEN Shaowen~. Dosimetry characteristics of Al₂O₃ in MeV beams[J]. Nuclear techniques, 2008, (10): 769-771. DOI：

摘要

用EGSnrc/DOSRZnrc程序计算水体模中Al

剂量计的吸收剂量和剂量计所在处介质的实际吸收剂量

并计算吸收剂量换算因子。剂量计为φ4mm×1 mm的Al

薄片

计算深度0.5～8 cm

入射光子能量1～18MeV

入射电子能量1～25 MeV。结果表明:1)吸收剂量换算因子的大小与入射粒子的能量以及剂量计在体模中的深度有关;2)存在一个吸收剂量换算因子变化不敏感的区域

在此区域内吸收剂量换算因子受剂量计深度变化和入射粒子能量变化的影响都很小

可直接用平均值来表示区域内的吸收剂量换算因子。

Abstract

The EGSnrc simulation code DOSRZnrc was used to calculate the absorbed dose conversion factor of Al

dosimeter in MeV photon or electron beams in a water phantom.Simulations were done for a cylindrical geometry dosimeter （diameter 4.0 mm and height 1.0 mm） and the dosimeter was at the centre of the water phantom at different depths.The results reveal that the absorbed dose conversion factor is dependent on both energy of incident beams and depth of the dosimeter in the phantom

and there is an insensitive region where the absorbed dose conversion factor changes slightly.This allows the use of averaged dose conversion factor for the region-specific dosimeter depths and beam energies.

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Related Institution

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School of Physics and Engineering,Sun Yat-Sen University, Guangzhou 510275, China) 2

东莞理工学院

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Dosimetry characteristics of Al2O3 in MeV beams

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摘要

Abstract

关键词

Keywords

references

Dosimetry characteristics of Al₂O₃ in MeV beams