| 张文仲,郭勇,骆亿生.DIS辐射探测器对γ辐射能量响应的初步探讨[J].中华放射医学与防护杂志,2002,22(6):437-439.ZHANG Wenzhong,GUO Yong,LUO Yisheng.Preliminary research on response of DIS detector to γ-radiation energy[J].Chin J Radiol Med Prot,2002,22(6):437-439 |
| DIS辐射探测器对γ辐射能量响应的初步探讨 |
| Preliminary research on response of DIS detector to γ-radiation energy |
| 投稿时间：2001-07-31 |
| DOI： |
| 中文关键词: DIS探测器 电离室 γ辐射 能量响应 |
| 英文关键词:DIS detector Chamber γ-radiation Energy response |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨不同室壁材料的DIS辐射探测器对γ辐射能量响应的规律与特点。方法 设计不同室壁材料的电离室,利用蒙特卡罗方法粒子输运技术,模拟计算DIS探测器电离室对不同能量γ辐射的能量响应。结果 用Al、Mg作为电离室室壁材料时,当光子能量在30～100keV范围内时,电离室能量响应增加很大;而对C、A-150塑料来讲,在计算中整个能量范围内,能量响应变化不大,线性响应较好。结论 组织等效材料(A-150)作为电离室室壁材料时,可以使电离室能量响应得到根本改善,从而满足个人吸收剂量线性测量的需要。 |
| 英文摘要: |
| Objective To the study rules and features of response of different types of wall materials of DIS detector chamber to γ-radiation energy. Methods Designing the chamber with different types of wall materials their response to γ-radiation energy can be achieved through Monte Carlo method. Results The chamber sensitivity increased greatly between the range of 30 to 100 keV when aluminum(or magnesium) was used as chamber wall material.The chamber sensitivity did not change much in the entite energy range when curbon(or A-150) plasties were used. Conclusion When tissue equivalent material(A-150) is used as wall material,response of DIS detector to γ-radiation energy will get better.This type of chamber will meet the need of linear measurement on personal absorbed dose. ; |
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