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随着放射治疗事业的发展,近几年来~(60)C_0治疗机、加速器越来越多地被用于临床肿瘤治疗。为了确保国际范周内放疗剂量测量的准确性和一致性,从1969年开始国际原子能机构(IAEA)和世界卫生组织(WHO)共同负责提供TLD剂量学国际服务,每年至少组织一次不同国家、地区范围内的国际比对。1991年6月下旬～7月上旬,我们组织了辽宁、吉林、黑龙江三省市10家医院的14台放疗机(其中~(60)C_0治疗机6台,加速器
With the development of radiation therapy, in recent years ~ (60) C_0 treatment machines, accelerators are increasingly used in clinical oncology. In order to ensure the accuracy and consistency of the dosimetry measurements during the international week, the International Atomic Energy Agency (IAEA) and the World Health Organization (WHO) jointly provided international services in TLD dosimetry since 1969, organizing at least one country / region International comparison within the scope. From late June to early July 1991, we organized 14 radiotherapy units (including ~ 60 C0 treatment units), 10 accelerators (10 units) in 10 hospitals in Liaoning, Jilin and Heilongjiang provinces,