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Assessment Of Dosimetric Quantities For Patients Undergoing X-ray Examinations In A Large Public Hospital In Brazil-a Preliminary Study

机译:巴西一家大型公立医院接受X射线检查的患者剂量学评估的初步研究

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摘要

The introduction of routine patient dosimetry to Brazilian radiological institutions is very necessary in order to meet national and international standard requirements for radiation protection. This work presents a survey of the air kerma-area product (PKA). the entrance surface air kerma (K_e) and the effective dose (E) in common radiographic examinations during the routine of a large public hospital in the city of Belo Horizonte, Brazil. Results draw attention to the use of field sizes larger than the cassette dimension, the lack of both the collimation X-ray beam and the standardisation of the exposure parameters by radiology technicians.
机译:为了满足放射防护的国家和国际标准要求,向巴西放射学机构引入常规的患者剂量测定是非常必要的。这项工作介绍了空气比释动能区域产品(PKA)的调查。在巴西贝洛哈里桑塔市的一家大型公立医院进行例行常规放射线照相检查时,其入口表面空气比释动能(K_e)和有效剂量(E)。结果引起人们的注意,使用的场尺寸大于暗盒尺寸,缺少准直X射线束,而且放射技术人员还没有标准化曝光参数。

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