Some aspects of X-ray physics will be explained here.
The symbols used in this website are defined as follows.
|decrement of the refractive index||1|
|f||focal length of a lens||m|
|L||length of a refractive X-ray lens||m|
|N||number of single focusing elements in a refractive X-ray lens||1|
|R||radius of curvature of the refracting surface of an X-ray lens||m|