Prasad S C, Hendee W R
Med Phys. 1977 May-Jun;4(3):235-8. doi: 10.1118/1.594372.
Corrections for nonuniform x-ray intensity distributions have been computed for the dimension perpendicular to the anode-cathode axis of x-ray-tube focal spots. These correction factors were developed from comparison of OTFs for focal spots with uniform intensity distributions to those for focal spots with symmetric double-peaked intensity distributions.
针对与X射线管焦点阳极-阴极轴垂直方向的尺寸，已计算出非均匀X射线强度分布的校正值。这些校正因子是通过比较强度分布均匀的焦点的光学传递函数（OTF）与强度分布为对称双峰的焦点的光学传递函数而得出的。
