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The AFTER electronics from a user’s point of view

The AFTER electronics from a user’s point of view. D. Attié, P. Colas. The AFTER-based electronics. Based on the AFTER chip: ASIC For TPC Electronic Readout Modularity 72 channels (80 pin ERNI connect.) Amplifier-shaper, 12-bit digitization, 511 bucket full-wave sampling.

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The AFTER electronics from a user’s point of view

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  1. The AFTER electronicsfrom a user’s point of view D. Attié, P. Colas T2K electronics

  2. The AFTER-based electronics • Based on the AFTER chip: ASIC For TPC Electronic Readout • Modularity 72 channels (80 pin ERNI connect.) • Amplifier-shaper, 12-bit digitization, 511 bucket full-wave sampling. • High versatility: 100 MHz clock (10,… 25, 33, 50, 100 MHz sampling. 100ns to 2 µs peaking time, + bypass option, various dynamic range down to 120 fC full scale • Designed in Saclay for T2K TPC in 2006, prototyped in 2007, produced in 2008, used by LC-TPC and others T2K electronics

  3. SCA: 76x511 Cells AFTER Technology: AMS CMOS 0.35mm Number of transistors: 400,000 Area: 7546mm x 7139 mm Package: LQFP 160 pins; 30 x 30 x 1.4 mm pitch: 0.65 mm Submission: 24 April 2006 Delivery: end of July 2006 Characterization: October 2006 – March 2007 T2K electronics

  4. Connectors to detector plane Passive Components ASIC ASIC ASIC ASIC ~12 cm 4 channel ADC 288 channel FE card Digital output ~25 cm T2K electronics

  5. Front-End Mezzanine T2K electronics

  6. Detector Module Read-out Electronics 288-channel analog Front-End Card (FEC) 1728-pad detector plane 80-pin connector 72-channel ASIC Slow-control Network - CANbus Quad-channel ADC digital Front-end Mezzanine card (FEM) LV supply Optical fibre FPGA Fiber to DCC Optical Transceiver Low voltage power 84 modules in total • Data taking at CERN on Harp setup in Sept. 07, on EUDET setup in Dec 08 and in the T2K testbeam at Triumf • electronics was very stable during the data taking periods T2K electronics

  7. T2K electronics

  8. AFTER-based electronics for LC-TPC 1728 channels (-2 for HV) T2K electronics

  9. T2K electronics

  10. Pedestal monitoring for LC-TPC (mean and rms) T2K electronics

  11. T2K electronics

  12. Sample signals at various sampling frequencies, 100 ns peaking time 25 MHz 33 MHz 10 MHz 50 MHz 100 MHz T2K electronics

  13. T2K electronics

  14. Very friendly user interface. T2K electronics

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