SLS Internal Reports 2013
Calculation of the Point Spread Function for
the X09DA Pinholes in SLS
16-DEC-2013, 13 pages [PDF]
The diagnostic beamline X09DA is equipped with a set of x-ray pinholes for horizontal beam size measurements. In order to extract the
right beam size out of the pinhole images it is necessary to carefully account all the effects that can add up to the image blurring. This is done
by calculating the point spread function (PSF) of the system, which is a weighted average over the x-ray spectra of the blurring effects of
diffraction, pinhole geometry, scintillator and CCD camera. In this note we describe, step-by-step, the details of this calculation.