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报道:当X线机启动后有三股线束,即有用线束、散射线及漏射线,从而使机房内产生电离辐射,忽视安全防护,对接触者必然造成极大危害。 自1975～1990年间对该公司两所医院3个摄片室、2个透视室及1个整骨室各机房内的X线照射量率进行系统定点监测,计350余点次。其波动范围在“未测出～300mr/h”之间(～774×10~(-7)C·kg~(-1)。h~(-1)),其几何均数(G)为19.2mr/h(49.54×10~(-7)C·kg~(-1)·h~(-1)),且检出率为95.4％。 由历年来工时写实表明,每人每日平均接触X射线约2小时,每周为6天,每年最多工作300天,
Report: When the X-ray machine starts with three strands of wire harness, that is, useful wiring harness, scattered radiation and leakage lines, so that room produces ionizing radiation, ignoring the safety protection, the contact will inevitably cause great harm. From 1975 to 1990, the X-ray exposure rate in each of the three hospital radiologists, the two radiographers and the one orthopedic room in two hospitals of the company was systematically monitored by a fixed point system, which was more than 350 times. Its fluctuation range is “undetermined ~ 300mr / h” (~ 774 × 10 -7 C · kg -1 · h -1), and its geometric mean (G) is 19.2 mr / h (49.54 × 10 -7 C · kg -1 · h -1), and the detection rate was 95.4%. The working hours over the years show that the average daily exposure to X-ray per person for about 2 hours a week for 6 days a year for up to 300 days,