Digital System for Multi-parametric Analysis in Physics Application

Abstract

In recent years, the use of waveform digitizers for readout of radiation detectors has become popular in many different physics applications: the conventional analog electronics is going to be replaced by a full digital approach, where the detector output is directly connected to the digitizer input. This approach is especially beneficial in multi-parametric acquisition systems, where the analysis involves different quantities and parameters, such as energy, pulse shape and timing. This results in an “all-in-one, multi-parametric digital DAQ for physics applications”. Quite often there is some question as to the optimal combination of sampling rate and number of bits for the flash ADC, especially when it is necessary to perform high resolution timing acquisitions with fast detectors. Here a brief overview on the digital CFD $+$ TDC implementation will be presented and the results obtained with a 500 MS/s, 14 bit digitizer Mod. CAEN DT5730 with pulse generators as well as real detectors such as LaBr$_3$ and BaF$_2$ will be showed.

Massimo Venaruzzo on behalf of CAEN S.p.A.