Calice Electromagnetic Calorimeter Readout Status
نویسنده
چکیده
The CALICE Electromagnetic CALorimeter (ECAL) will be a silicon-tungsten sampling calorimeter [1] with 30 layers of silicon wafers, each containing an 18×18 array of diode pads, giving 9720 channels to be read out. The signal from each pad is amplified by a Very Front End (VFE) ASIC [2] which multiplexes the signals from 18 pads onto one output line. The silicon wafers and VFE chips are mounted on VFE PCBs [3], each containing up to 12 VFE ASICs, equivalent to 216 pads. The signal cables from the VFE PCBs connect directly to the readout boards and the latter are the subject of this paper.
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