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Status Readout

This workshop presentation provides an update on the status of the Readout Components, FEE for STAR, Firmware, Power Supply & Distribution, as well as a summary and outlook for the installation in 2018.

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Status Readout

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  1. Status Readout Jochen Frühauf, GSI STAR-CBM Joint Workshop Heidelberg, Physikalisches Institut September, 2018

  2. @ Outline • CBM ToF @ STAR • Readout Components • Status FEE for STAR • Firmware Status • implemented • open issues • Power Supply & Distribution • Summary and Outlook installation in 2018 Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  3. @ CBM ToF @ STAR fixed target pos. (~500 cm) • 12 sectors • 36 modules • 108 MRPCs • 6912 channels • 637 electronic cards Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  4. @ Readout Components • PADI: Preamplifier board 32 CH • Feed through PCB • GET4: TDC board 32 CH • Backplane with GBTx chip • AFCK: FPGA board • FLIB: FPGA PCI express card CBM TOF module TCA crate HP-PC Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  5. @ Status FEE for STAR • 216 x PADI FEE • production finished • Yield 99% (ASIC Level 12 Chips reworked ) • all PCBs are mounted • 72 x Feed Through PCB • production finished • all PCBs are mounted • 216 x GET4 FEE • production finished • Yield 97% • reworked 71 ASICs test ongoing • most of the PCBs are mounted • 72x GBTx Readout Board for ToF • 99 PCBs produced • SCA Chip not working so far • not all PCBs tested yet • a few non working PCBs found • 8 out of 42 tested ~20% • 24 PCBs are mounted • 9x CLK Distribution are available • 1x CLOSY is available • 1x STAR Interface is available • 12x AFCKs are available + Addons • 2 x FLIBs are available + Addon Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  6. @ Firmware Status • Implemented: • readout of 6 GBTx(1 Sector) • Real Microslices • data pre-processing • merging Epochs of up to 240 GET4s • Token detection • specific Data handling for some unexpected GET4 behavior • lost Epoch • multiple of the same Epoch Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  7. @ Firmware Status RMS Plot for Pulser Input • open issues: • we see from time to time “Mismatch Errors” which indicates not all GET4 send the right Timestamp • further debugging needed • GET4 FEE runs on recovered CLK from GBTx instead of 160MHz from CLOSY • loss in precision • we do not always get a link between GET4 and GBTx in case of copper clk • further debugging needed • detailed information about CLK in separate PPT available ~55ps between GET4 between 2 GBTx different AFCK ~35ps between GET4 between 2 GBTx same AFCK ~30ps between GET4 served by 1 GBTx System resolution should be still below 80ps Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  8. @ Power Supply • Mean Well Power Unit • 2x 12V / 80A (2x 110V / 13A) needed for full wheel • can STAR provide 2 x power cord with IEC320-C20 connector • controlled by web interface so far • Power Distribution Unit for STAR will be produced in 2nd week of October • prototype @ mCBM already controlled via epics via raspberry pi 3 Mean Well RKP-1UI-CMU1 RCP-2000-12 EPICs GUI Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  9. @ Summary & Outlook • we produced our FEE for STAR in China • we implemented the GBTxin our Readout Chain • we will install the full wheel @ STAR November / December 2018 • we plan to remove JTAG-PC inside the Cave • either we use the raspberry or an USB to Optic converter (already bought) • we continue debugging issues in our Firmware and Hardware Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  10. Thank you for your attention Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  11. Backup Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  12. CBM ToF Readout Scheme for mCBM& STAR (reminder) 7 1 MRPC PC 4 5 2 • Detector = MRPC • Preamplifier & Discriminator = PADI • Time to Digital Converter (TDC) = GET4 • GBTx = Data Concentrator ASIC from CERN = 1nd concentrator stage • Data Processing Board = 2rd concentrator stage (AFCK in MTCA Crate) • Clock Master (CLOSY) & Clock Distribution for ToF • PC = storage Device with FLIB (PCIe Card) 3 50m 5-20m PADI TDC GBTx DPB FLIB STAR Trigger - Information CBM CLK (40MHz) ToF Clock Master ToF CLK (160MHz) Cu optical 6 STAR CLK (40MHz) Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  13. Clock and Token Detection & Signal Distribution outside the Magnet 16x 50MHz + Reset 16x TOKEN 16x 40MHz + SYNC 1x for 1 Sector (Standalone or mTCA) 12x for full installation (mTCA) CNTR Link only 1x for full System Distribution Boards RJ45 (LVDS) 40MHz & SYNC 1x CNTR to eTOF TOKEN 50MHz & Reset 1x FLIB to DAQ Room up to 6 GBTx / AFCK to eTOF CLOSY CNTR Link provides: RESET for FEE external Pulser Signal cntr signal for switch for external Pulser injection • STAR Interface PCB provides : • Signal conversion into LVDS • Signal Splitting • Power for: • 3x Distribution Board • 1x CLOSY STAR 40MHz STAR_IF CBM 40MHz CBM 160MHz SYNC differential LEMO (LVDS) differential LEMO Connector Flatband Cable (Token) Connector RJ45 Connector TOKEN / 50 MHz STAR 40MHz / RES 1x 160MHz & SYNC to eTOF PECL & LVPECL Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  14. Clock / SYNC & CNTR Distribution inside the Magnet to neighbor Sector 1x CNTR 1x 160MHz & SYNC from downstairs 1x SECTOR Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  15. @ CBM ToF @ STAR Module testing in HD ongoing • 4 sectors under test • 2 sectors only under GAS Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

  16. CBM ToF @ mCBM • readout 1600 Channel Jochen Frühauf--STAR-CBM Joint Workshop--September 2018

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