Rotating disk device for slit radiography of the chest.
Rotating disk device for slit radiography of the chest.
复制标题
用于胸部狭缝射线照相的旋转盘装置。
DOI：
10.1148/radiology.134.1.7350609
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发表时间：
1980
期刊：
影响因子：
19.7
通讯作者：
S. Jacobsen
中科院分区：
文献类型：
--
作者：
J. Sorenson;J. A. Nelson;L. Niklason;S. Jacobsen
一对快速旋转的圆盘组装有多个径向狭缝，用于在 1/60-1/20 秒内获得胸部 X 线照片，使用自动曝光计时，没有单个狭缝的可见图像。散射辐射水平显着降低（二分之一到四分之一），特别是在胸片的心后和中央纵隔区域。由于用于射线照相的 X 射线胶片的宽容度有限，这种程度的散射减少所带来的潜在对比度改善的充分实现受到了损害。讨论了这些问题和潜在的解决方案。
A pair of rapidly rotating disks was assembled with multiple radial slits for obtaining chest radiographs in 1/60-1/20 sec., using automatic exposure timing, without visible images of individual slits. Substantial reduction of scattered radiation levels is achieved (one half to one fourth), especially in the retrocardiac and central mediastinal areas of the chest film. Full realization of the potential contrast improvement resulting from this degree of scatter reduction is impaired by the limited latitude of x-ray films used for radiography. These problems and potential solutions are discussed.