X-ray studies of the pixel readout for the CMS detector

X-ray tests have been conducted on the silicon pixel particle detectors which are being used in the Compact Muon Solenoid experiment at the Large Hadron Collider. Using an X-ray box setup at the University of Kansas, a broad scope of tests from simple parameter effects to more complex multi stage tests have been performed. A fluorescence setup was made to allow the adjustment of incoming particle energy which allows one to calibrate the energy in the detectors. The trimming algorithm used to adjust the readout threshold for each pixel is also studied using X-rays.