Signal processing module for the liquid xenon calorimeter of CMD-3 detector

The coordinate system of a liquid xenon (LXe) calorimeter includes 2112 cathode strips. The charges collected by the strips are to be measured. A special Signal Processing Module has been developed which performs all actions necessary for charge measurement—amplification and shaping of analog signal, digitization, and resulting data transfer to the data acquisition system. In this paper the selected amplitude measurement technique, the estimation of achievable accuracy of amplitude measurement, and the results of module testing are described.