| RT-101型0.6cm3指型电离室的研制 |
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| 引用本文： | 程金生,李开宝,赵招罗,姜庆寰. RT-101型0.6cm3指型电离室的研制[J]. 中华放射医学与防护杂志, 2004, 24(3): 275-277 |
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| 作者姓名： | 程金生 李开宝 赵招罗 姜庆寰 |
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| 作者单位： | 100088,北京,中国疾病预防控制中心辐射防护与核安全医学所 |
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| 基金项目： | 卫生部医学重点科技基金资助项目 ( 88113 0 69) |
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| 摘 要： | 目的研制用于外照射治疗光子束和高能电子束的剂量测量的灵敏体积0．6cm^3指形电离室。方法通过调整电离室的结构使外壳为纯石墨和收集极为纯铝制成的电离室性能指标满足IEC标准的要求。结果按照IEC标准规定的方法对电离室进行了全面测试，所有性能指标都优于标准的要求。结论RT-1010．6cm^3指形电离室可以满足测量外照射治疗光子束和高能电子束的剂量的需要。
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| 关 键 词： | RT-101型 0．6cm^3指型电离室 能量响应 放射治疗 剂量 |
| 收稿时间： | 2004-03-02 |
| 修稿时间： | 2004-03-02 |
The research of model RT-101 thimble ionization chamber |
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| CHENG Jin sheng,LI Kai bao,ZHAO Zhao luo. The research of model RT-101 thimble ionization chamber[J]. Chinese Journal of Radiological Medicine and Protection, 2004, 24(3): 275-277 |
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| Authors: | CHENG Jin sheng LI Kai bao ZHAO Zhao luo |
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| Affiliation: | CHENG Jin sheng,LI Kai bao,ZHAO Zhao luo,et al. National Institute for Radiological Protection,Chinese Center for Disease Control and Prevention,Beijing 100088,China |
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| Abstract: | Objective To research the thimble ionization chamber for measurement of absorbed dose in photon or electron radiation field used in radiotherapy. Methods Using graphite as chamber wall and pure aluminum as central receiver electrode. Result According to the IEC standard 60731 checking methods, all properties of RT 101 are up to the requirements of the standard. Conclusion The 0 6 cm 3 RT 101 thimble ionization chamber can be used as field class detector for measurement of absorbed dose in photon or electron radiation field used in radiotherapy. |
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| Keywords: | Radiotherapy Absorbed dose Ionization chamber Energy response |
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