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 6cm3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 10 10
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.
出处
《中华放射医学与防护杂志》
CAS
CSCD
北大核心
2004年第3期275-277,共3页
Chinese Journal of Radiological Medicine and Protection
基金
卫生部医学重点科技基金资助项目 ( 88113 0 69)
