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Power consumption of FPCCD VTX Detector. Y. Sugimoto KEK Sep. 12, 2007. Readout channels. One readout channel covers 128x13000(L1-L2)/128x20000(L3-L6) pixels For outer layers, larger pixel size may be acceptable and could be 128x13000. Inside of the detector. Heat source
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Power consumption of FPCCD VTX Detector Y. Sugimoto KEK Sep. 12, 2007
Readout channels • One readout channel covers 128x13000(L1-L2)/128x20000(L3-L6) pixels • For outer layers, larger pixel size may be acceptable and could be 128x13000
Inside of the detector • Heat source • Ohmic loss in gate electrode (probably negligible) • CCD source follower and load resister • Readout ASIC • Clock driver • CCD and ASIC must be inside the cryostat • Clock driver may be put outside the cryostat • Most of power is consumed by “drivers” • No heat source in the image area Our R&D goal: < 100 W in the cryostat (< 16 mW/ch) < 300 W in the detector 100 W 200 W
Electronics Hut • No clear idea • Assume x10 larger than the power consumption inside the detector = 3 kW