The results of testing a method for measuring the focal spot of bremsstrahlung using a “special lead lens” are presented. The test was performed on the basis of experimental dose distributions in the detector that were obtained during studies of the characteristics of bremsstrahlung radiation of a betatron at an acceleration energy of 4 MeV. The method was modeled using a set of collimators with different sizes of cylindrical apertures. It is shown that in comparison with slit collimators, the use of collimators with cylindrical apertures, including a “special lead lens,” leads to interdependence of the measurement results in different directions.

中文翻译：

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用准直仪测定甜菜碱Bre致辐射震斑的大小

给出了使用“特殊铅透镜”测量致焦点的方法的测试结果。该测试是基于在检测器上的实验剂量分布进行的，该剂量分布是在研究4trone加速能量下的电子感应加速器的致辐射特性时获得的。该方法是使用一组具有不同尺寸的圆柱孔的准直器进行建模的。结果表明，与狭缝准直仪相比，带有圆柱孔的准直仪（包括“特殊铅透镜”）的使用导致测量结果在不同方向上相互依赖。