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《China Medical Equipment》 2015-01
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Study on radiation dose of blood irradiator

WANG Hong-fang;MA Yong-zhong;WAN Ling;Beijing Center for Disease and Prevention;  
Objective: To investigate the radiation protection level of blood irradiator and radiation dose distribution in radiation region of sample. Methods: The radiation dose levels of the two types of blood irradiators(C-3100 and XHBRI-1000) were measured at ON or OFF status with X, γ dose rate instrument. The thermo-luminescent dosimeter Li F(Mg, Ti) detectors were placed in different position of the sample cup to measure the dose. Results: The maximum radiation dose rates at outer surface for C-3100 and XHBRI-1000 units were 0.30/0.62μGy/h and 0.60/0.28 μGy/h at OFF/ON status, respectively. The radiation dose level declined from middle, top, to bottom, and from peripheral to center in the sample cup for C-3001 type with the radiation dose deviation of-6.7%~10.4%, differently, the radiation dose level declined from top, middle, to bottom, and from center to periphery in the sample cup for XHBRI-1000 type with the radiation dose deviation of 3.7%~17.5. Conclusion: the radiation protection level of two types of blood irradiators meted the relevant national criterions. The irradiations in the cup were relatively uniform distributed.
【Fund】: 卫生行业科研专项(201002009)“辐射危害控制与核辐射卫生应急处置关键技术研究及其应用”;; 北京市预防医学研究中心公益应用项目(2014-BJYJ-07)“放射诊疗防护标准及设备性能指标的应用研究”
【CateGory Index】: R144.1
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