移动式X射线机床旁摄片场所放射剂量检测

陈飚; 陈春晖; 高林峰; 姚杰; 肖虹

doi:10.19428/j.cnki.sjpm.2019.19069

移动式X射线机床旁摄片场所放射剂量检测

Radiational dose detection for mobile X-ray equipment bedside radiography

摘要

摘要:
目的了解移动式X射线机床旁摄片场所的放射剂量水平，为管理部门进一步制订管理标准提供依据。
方法在上海市医疗机构随机抽取10台移动式X射线机，模拟日常病房开展床旁摄片的场景，对场所X射线剂量率进行检测。
结果检测结果剂量率数值范围为6.9~1 989 μSv/h，不同设备的剂量率差异较大。
结论不同型号的移动式X射线机自身防护性能差异较大，使用、维护不当，会进一步增加机头漏射线，购置防护性能好的设备、小心使用、做好维护保养工作等是降低X射线剂量的重要保障；移动式铅屏风具有较好的屏蔽防护作用，但必须方便实用。

Abstract:
ObjectiveTo study the level of radiational dose in sites for bedside radiography, and to provide the basis for further formulation of management standards.
MethodsIn the study, 10 mobile X-ray equipments were randomly sampled to simulate daily bedside radiographing in the ward.The dose rates of the X-ray were detected and evaluated around the work site.
ResultsThere were high dose rates detected that ranged from 6.9 μSv/h to 1 989 μSv/h, and the dose rates coming from different types of equipments were quite different from each other.
ConclusionDifferent equipments have different protective performance.Improper usage and maintenance will increase the leakage of X-ray from equipment′s head.Purchasing good protective equipment, using carefully and doing well in maintenance are the important guarantees to reduce X-ray dose.Mobile shield has a good effect, but it must be convenient and practical.

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