Ponente
Descripción
Highly compact and granular sandwich silicon tungsten calorimeters are proposed for all future Higgs Factories, strong-field-QED experiments and Dark Matter searches experiments. In this contribution we discuss beam test results of a prototype composed of sensor planes made of silicon pad sensors, flexible Kapton printed circuit planes for bias voltage supply and signal transport to the sensor edge, all embedded in a carbon fibre support. The thickness of a sensor plane is less than 1 mm. A dedicated readout is developed comprising front-end ASICs in 130 nm technology and FPGAs to orchestrate the ASICs and perform data pre-processing. As an alternative, GaAs are considered with integrated readout strips on the sensor. Prototypes of both sensor planes are studied in an electron beam of 5 GeV. Results will be presented on the homogeneity of the response, edge effects and cross talk between channels.
