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aTLU for AIDA

aTLU for AIDA. High Rate Synchronous as well as Asynchronous. New Features ( w.r.t . EUDET). Synchronous (shared clocks) interface. Allows higher trigger rate Interface by Gigabit Ethernet. Readout PC can be remote. IPBus protocol Higher rate discriminators ( ~ MHz count rate)

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aTLU for AIDA

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  1. aTLU for AIDA High Rate Synchronous as well as Asynchronous David Cussans, AIDA WP9.3, DESY

  2. New Features (w.r.t. EUDET) • Synchronous (shared clocks) interface. • Allows higher trigger rate • Interface by Gigabit Ethernet. • Readout PC can be remote. • IPBus protocol • Higher rate discriminators ( ~ MHz count rate) • Threshold and constant-fraction • Thresholds remotely controllable. • Timestamps on each scintillator input • More accurate timing. • Timestamp granularity increased from 3.2ns to 800ps David Cussans, AIDA WP9.3, DESY

  3. Synchronous Interface • Clock from TLU to DUT • Configurable frequency • Trigger pulse only only clock cycle long • Trigger rate up to 40MHz ( though photo-multipliers will limit this ) • Busy from DUT to TLU • Check synchronization from time-stamp of each trigger ( measured in clock cycles) David Cussans, AIDA WP9.3, DESY

  4. Synchronous Interface David Cussans, AIDA WP9.3, DESY

  5. Asynchronous Interface • EUDET style asynchronous interface remains • Synchronous/Asynchronous interface switchable by software • Maximum DUT_Clock frequency increases ( by default to 20MHz ). • Can read out trigger numbers faster David Cussans, AIDA WP9.3, DESY

  6. Asynchronous Interface David Cussans, AIDA WP9.3, DESY

  7. Spill/Shutter signal • Optional , programmable spill/shutter signal • In short term will be a fixed on/off period • Could extend to be on for a fixed number of triggers, or a fixed time, or whichever comes first. • Useful for a number of Linear Collider detectors / readout system. David Cussans, AIDA WP9.3, DESY

  8. Use for TimePix Telescope • AIDA mini-TLU has only three DUT interfaces • Fan-out one interface to six using Uni Mainz board. • Takes “or” of BUSY signals • VME format • Allows AIDA mini-TLU to provide synchronization signals for TimePix telescope • Similar or identical firmware • Firmware developed by Alvaro Dosil, USC David Cussans, AIDA WP9.3, DESY

  9. Hardware Status • Small run of prototype TLU made earlier this year. • Serious “bug” – incorrect connector rotation • Two boards fixed up so they can be used for firmware/software development. David Cussans, AIDA WP9.3, DESY

  10. Hardware Status • “bug-fixed” design has been submitted for manufacture ( Igor Rubinski, DESY). • Ten PCBs fabricated. Being shipped from China. • Will assemble components on three. • If board works well, will ask other groups if they would like one. • Cost likely to be about €1500 (TBC) David Cussans, AIDA WP9.3, DESY

  11. Firmware/Software Status • EUDAQ Producer for AIDA TLU being written by Francesco Crescioli, LPNHE/IN2P3 • Firmware being written by Alvaro Dosil, USC and D.Cussans, Bristol • Integration/Development session planned 9-11 December at DESY David Cussans, AIDA WP9.3, DESY

  12. Common DAQ Interface • A proposal for hardware timing and synchronization signals has been written and will be circulated. • Draft at https://indico.cern.ch/getFile.py/access?resId=0&materialId=0&confId=284589 • Meeting to discuss common DAQ at DESY, December 10th 1400-1700. • Remote access via Vidyo • Please let me know if you want to attend and/or contribute. David Cussans, AIDA WP9.3, DESY

  13. Summary • New hardware synchronization scheme proposed for high-rate ( ~ MHz ) beams. • New hardware prototype built. • Firmware/software being developed. • Common DAQ meeting next month. David Cussans, AIDA WP9.3, DESY

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