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医用X线摄影操作室的防护效果直接关系到摄影工作者职业性受照的剂量大小。本文介绍我省112台200mA以上(含200mA)X线机在执行腰椎侧位摄影时,目前常用的五种类型摄影操作室防护效果的调查结果。材料与方法一、摄影操作室的分类:按操作室的防护结构形式可分为五种类型:(1)仅由单块铅屏风(具有0.5mm铅当量,下同)组成。(2)由两块铅屏风围成“(?)”形,接缝处无铅橡皮复盖。(3)由三块铅屏风围成“(?)”形,接缝处多数无铅橡皮复盖。(4)用1.0～2.0mm厚铁板建成长方体式无顶棚的工作室,有同样防护厚度的铁门,高度在1.8～2.0米之间,观察孔为15×15cm～25×25cm不等,且装有0.5mm铅当量的玻璃。(5)用24cm厚砖块砌成约2m高的无顶棚式碉堡,
The protective effect of the medical X-ray photography room is directly related to the dose of occupational exposure of the photographer. This article describes the province of 112 sets of 200mA or more (including 200mA) X-ray machine in the implementation of lumbar lateral photography, the current commonly used five types of photographic operating room protective effect survey results. Materials and methods First, the classification of photography studio: According to the operating room protection structure can be divided into five types: (1) only by a single lead screen (with 0.5mm lead equivalent, the same below). (2) by two lead screen into a “(?)” Shape, seams at the lead-free rubber cover. (3) surrounded by three lead screens into a “(?)” Shape, most of the joint at the lead-free rubber cover. (4) 1.0 ~ 2.0mm thick iron plate built rectangular boxless studio, with the same protective thickness of the iron door, the height of 1.8 to 2.0 meters, the observation hole is 15 × 15cm ~ 25 × 25cm range, And with 0.5mm lead equivalent glass. (5) with 24cm thick brick built about 2m high ceiling-free bunkers,