Determination of X-ray shielding thickness in two tertiary hospitals in Kano metropolis, Nigeria

IF 0.1 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
A. Abubakar, M. Sidi
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引用次数: 4

Abstract

Background: Radiation dose depends on the total workload (Wtot) which is affected by the number of patients, tube potential, and tube current. Despite the increment in patients visiting the X-ray units under study and X-ray tube revolutions, changes have not been made in the shielding material to suit the current situation. Aims: This study aims to evaluate the thickness of X-ray shielding barriers in two tertiary hospitals in Kano Metropolis using XRAYBAR software. Materials and Methods: This was a prospective, cross-sectional study and was undertaken from March 2017 to October 2017. A purposive sampling technique was employed to select two hospitals out of five. The two were named A and B, respectively. The minimum required thickness in each barrier was determined by XRAYBAR software. Results: The Wtot (workload) for room I, II and III was found to be 199.9, 146, and 149.1 mA-min per week. The shielding barrier thickness required to reduce the unshielded radiation dose to the design dose limit for wall 1, 2, 3, 4, and operating console of the Room I was found to be 17.5, 5.5, 0.2, 0.00, 3.3 cm, that of wall 1, 2, 3, and 4 of room II was found to be 9.1, 3.4, 0.02, 2.3 cm, while for the wall 1, 2, 3, 4, and operating console of room III was found to be 12.3, 4.8, 3.8, 3.2, and 26.5 cm, respectively. Conclusion: The calculated shielding barrier thickness from XRAYBARR code when compared to the design barrier thickness was found to be adequate.
尼日利亚卡诺大都市两家三级医院X射线屏蔽厚度的测定
背景:辐射剂量取决于总工作量(Wtot),而总工作量受患者数量、管电位和管电流的影响。尽管访问研究中的X射线装置和X射线管旋转的患者人数有所增加,但屏蔽材料尚未做出改变以适应当前情况。目的:本研究旨在使用XRAYBAR软件评估卡诺大都会两家三级医院的X射线屏蔽屏障厚度。材料和方法:这是一项前瞻性的横断面研究,于2017年3月至2017年10月进行。采用有目的的抽样技术从五家医院中选择两家。这两个分别被命名为A和B。通过XRAYBAR软件确定每个屏障中所需的最小厚度。结果:I、II和III室的Wtot(工作量)分别为199.9、146和149.1 mA min/周。将非屏蔽辐射剂量降低到设计剂量限值所需的屏蔽屏障厚度为17.5、5.5、0.2、0.00、3.3 cm,房间I的墙壁1、2、3和4的厚度为9.1、3.4、0.02、2.3 cm,而房间III的墙壁1,2、3、4和操作台的厚度为12.3、4.8、3.8、3.2,和26.5厘米。结论:与设计屏障厚度相比,XRAYBARR代码计算的屏蔽屏障厚度是足够的。
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来源期刊
West African Journal of Radiology
West African Journal of Radiology RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
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