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TimePix-2 A general purpose HEP Track & Imaging Pixel Chip Hvdg, Nikhef RD51, Paris, Oct 14, 2008

TimePix-2 A general purpose HEP Track & Imaging Pixel Chip Hvdg, Nikhef RD51, Paris, Oct 14, 2008. HEP instrumentation since 1908: (charge) signal generator Amplifier (shaper) discriminator [counter, timer, MCA]. Higher count rates better (time, position) resolution Better granularity

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TimePix-2 A general purpose HEP Track & Imaging Pixel Chip Hvdg, Nikhef RD51, Paris, Oct 14, 2008

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  1. TimePix-2 A general purpose HEP Track & Imaging Pixel Chip Hvdg, Nikhef RD51, Paris, Oct 14, 2008

  2. HEP instrumentation since 1908: (charge) signal generator Amplifier (shaper) discriminator [counter, timer, MCA]

  3. Higher count rates better (time, position) resolution Better granularity MPGD: each grid hole is a stand-alone detector Continue this in readout

  4. In pixel: • pixel input pad to get charge signal in • preamp: time constant(s), bias current • shaper: time constant(s) • discriminator: speed, delay, power • time measurement, pulse height measurement • DAQ: memory per (group of) pixels • Approaching to obtain complete information from charge signal

  5. Timing and Tracking Pixel Readout Chip (TTPix) Count ToT (clk) Rst Count ToT (fine) Rst PRESET LATCH Preset Preamp Out Carry Hit D PRESETTABLE COUNTER Start VTH Stop Concept Michael Campbell Trigger (Shutter)

  6. Spare 3 gossipo2 timing CLock Discriminator Fast counter Measured time Slow counter Readout

  7. ADC per pixel • Time Over Threshold • Dual Discriminator • natural follow-up of Medipix-3 (130 nm tech) • Which groups are interested in TimePix-2? Form collaboration? • definition TimePix-2 • task distributions: - multi-project wafer runs 2009 • (input signal) simulations • evaluation of Medipix-3 • DAQ system & software development

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