Measurements at synchrotrons and FELs: Some differences observed with the CSPAD

Abstract

A series of measurements to validate the performance of the CSPAD were performed at the Stanford Synchrotron Radiation Lightsource (SSRL) and at the Linac Coherent Light Source (LCLS). These were important steps to complete the development of the detector, characterize its behavior under typical experimental conditions, and implement calibration procedures. In this paper we report differences observed in the response of the CSPAD to these very different sources. Particularly the linearity at very high fluence was investigated with correlation plots and weighting-function response.