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我们于１９９８年１１月，对全市ＣＴ机质控性能及防护水平进行了测试与评价，现将结果报告如下。１测试仪器１．１ＣＴ机质控测试所用仪器为美国ＶＩＣＴＯＲＥＥＮ公司生产的６６０型专用电离室，６６０型剂量仪及头部体模等。１．２辐射防护水平测试：所用仪器为上海核...
We in November 1998, the city’s CT quality control performance and level of protection were tested and evaluated, the results are reported as follows. A test instrument 1.1 CT machine quality control test equipment used by the United States VICTOREEN 660 special ionization chamber, 660-type dosimeter and head phantom. 1.2 radiation protection level test: the instrument used for Shanghai nuclear ...