Distortion calibration of the PILATUSÂ 1M detector

An algorithm for distortion correction of CCD detector data was adapted to correct the data of the PILATUS 1M detector. The results of the metrology as well as the parallax shift were incorporated in these corrections. Images from a Ta-mask were used to test the corrections and quantify the remaining spatial distortion. The mask images were also used to refine the individual module positions. In order to verify the distortion corrections crystallographic standards were used. The result is that images of the detector can be spatially corrected to a precision of 74μm or about 0.34 pixel.