R&D for a highly granular silicon tungsten electromagnetic calorimeter

16th International Conference on Calorimetry in High Energy Physics

Pöschl, Roman^1

Laboratoire de l'Accélérateur Linéaire, Centre Scientifique d'Orsay, Bâtiment 200, Orsay

91898, France^1

关键词: Conceptual problems;    DAQ system;    Dynamic range;    Further works;    Granular silicon tungsten electromagnetic calorimeters;    Integrated applications;    Noise ratio;    Pulsed mode;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/587/1/012032/pdf
DOI  :  10.1088/1742-6596/587/1/012032

来源: IOP

【 摘 要 】

This article reports on first experience with the technological prototype of a highly- granular silicon-tungsten electromagnetic calorimeter as envisaged for the detectors at a future lepton collider. In the focus of the analysis is the performance of a highly integrated Application Specific Integrated Circuit designed to meet the requirements in terms of dynamic range, compactness and power consumption. The beam test results show that the circuit will allow a future detector with a signal over noise ratio of at least 10:1. To minimise the power dissipation the ASIC will be operated in a power pulsed mode. So far no conceptual problem was revealed but the studies show the way for further work. The prototype is read out by a DAQ system conceived to meet the needs of a trigger less system with a huge number of readout cells.