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| Study on level and control measures about typical value of entrance surface air kerma rate for routine radioscopy in Fuzhou |
| WANG Xintao1, ZHENG Senxing2, LIN Yan3, LIU Xiangquan1, SHI Wenhua1, SU Danhua1, LIU Wen1 |
1. Fuzhou Center for Disease Control and Prevention, Fuzhou 350009 China;
2. Fujian Center for Prevention and Control of Occupational Disease and Chemical Poisoning;
3. Fuzhou Inspection Bureau for Health and Family Planning |
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Abstract Objective To research the level of the typical air kerma rates of incidence body surface using conventional medical X-ray perspective examination machine in Fuzhou, and to study the control measures, protect the health rights of the examinee.Methods Referring to "Specifications for quality control of image in conventional medical X-ray diagnostic equipment" (WS 76-2011), the level of the typical the air kerma rate of the incidence body surface using conventional medical X-ray perspective examination machine were investigated and evaluated, and the control measures were followed up.Results A total of 87 X-ray image intensifier fluoroscopy machines were investigated, the results show there are 22 machines which of typical values of the kerma rate of the incident surface air were over 25mGy/min, and 17 machines were intervened. 5 machines were repaired, and 5 machines were operated by "high voltage, low current, thick filter" method, then their typical kerma rate of the incident surface were reduced to less than 25 mGy/min. In addition, there were 4 machines to be shut down And 3 new machines to be replaced.Conclusion Strengthening supervision and management, training radiation workers, strengthening health awareness of radiation protection, carrying out quality control inspection, repairing and replacing the perspective machines in time, using reasonable operation methods such as "high voltage, low current, thick filtration" are the main measures to control the typical air kerma rate of the incident surface for perspective examiner.
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Received: 12 January 2018
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