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Status of NA62 straw electronics

Status of NA62 straw electronics. Webs Covers Services Readout. Webs. Production approaching the end Few problems with cut lines on flexible part Discovered with noise_scan program when mounted on the detector

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Status of NA62 straw electronics

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  1. Status of NA62 straw electronics Webs Covers Services Readout

  2. Webs • Production approaching the end • Few problems with cut lines on flexible part • Discovered with noise_scan program when mounted on the detector • Special test bench for this problem was discussed at the beginning but deemed not needed • Probably not justified for few cases • Current test bench proved to be very efficient to discover majority of the problems

  3. COVER • Full production arriveddelayed and damaged • FedEx subcontracted the delivery to CERN • Test all boards ASAP to know the yield and possible problems • 20 left to test • 1 damaged mechanically • 10 did not pass the test

  4. COVER • Keep covers in place when installed on the detector • 2 modules completely installed • Tested with final LV patch panels • Few bad straw wires and web connections discovered during tests • Remote programming • Firmware version 10 bugs for remote programming • Firmware version 11 • Remote pgm now works • Fixed bug in multi-edge bit • Improved timing for DAC read-back

  5. SERVICES • Patch panels and on-detector cabling (Johan) • Dense but feasible • LV and HV cover cables with different lengths • All LV and HV cables ordered with timed delivery • RJ45 needs careful planning • How many different lengths? • Storage behind rack ~1 meter • Wait for chamber installed in the pit? • UK company ready to produce batches of different lengths

  6. SERVICES • Patch panels LV and HV • HV ordered at CERN • Modification with copper GND plate instead od aluminium • LV tested completely by Johan • DCS control in advanced state • Still open • External temperature sensors • Humidity measurement ? • LV production tight • Organized by TE-MPE group • Fast PCB production • Components for assembly prepared • Total time ~6 weeks • ½ March at CERN • Johan to organize the test

  7. SERVICES • MPOD ordered • … but order lost • Delivered to ELCOTRON • Missing in Wiener • End of January not possible • Now end of February • HV modules new production • Not on stock • Will deliver 8-channel HV modules • Swap with final when delivered • As soon as we receive our MPOD • We have to return mini-MPOD which we have used till now • Test power supply of 1 module/2 views (full chamber?) • Order the rest 3 MPODs, eventually 1 spare

  8. SRB • 2 FPGAs ready for schematics • Event manager • Frontend interface • Work is now focusing on vme and trigger • Changes in connectivity and data flow • Input FPGA FESRB • Added data/cmd direct links to vme_bm • For control and cover tests • Use of event_mgr unpractical • Delay of every cover clock line (16 lines) must be adjustable • Trying 2 solutions • Use FPGA feature • Specialized clock generation chips with 8 outputs

  9. SRB – components L0 PROCESSOR L0 LOOK_UP TABLE L0 OUT VME INTF ON-LINE MONITOR LEMO TTC TTCRx COVERS TIME REMAP WORK DATA TO PC FARM COVER CONTROL, DATA, SYNCH EVENT PROCESSOR 2(4)GB DDR3

  10. SRB – data flow VME 2.5 Gbit/s 16x2x320Mbit/s ~10Gbit/s 1.6 Gbit/s 2x Gbitethernet

  11. SRB • Schematics + PCB design • Feb-> March foreseen • Possible delay of 2 weeks • Prototype April/May

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