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Muon PDT Commissioning Status

Explore the commissioning status of B and C-layer PDTs for the DØ Muon Upgrade Group at Northeastern University. Understand the synchronization error and steps taken to resolve it, including hardware adjustments and pulser tests. Stay updated on installation progress and upcoming plans for PDT readouts.

shawnblackwell
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Muon PDT Commissioning Status

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  1. Muon PDT Commissioning Status Neeti Parashar Northeastern University for the DØ Muon Upgrade Group

  2. Which PDTs ? • B and C-layer PDTs. • All are 3 deck PDTs (72 wires, 3 Front_End Boards, 1 Control Board). • On east side, on the top. • PDTs: 111, 121, 131, 211, 221, 231. PDTs Readout • The above group of 6 PDTs. • PDTs 131 and 231 read before. Noticed synchronization error.  Crossing numbers mismatch. Critical issue: • Resolve this sync. Error.

  3. PDT Front_End and Readout Setup 1 FEB CB Muon Readout Crate 2 PDT VME VBD MFC MRC 3 Front_End System A B 1 . . . . . . . . . . . . . . 12 1 FEB CB PDT 2 3 Source of all decisions Trigger Framework Front_End System

  4. Synchronization Error • Every other Turn number and crossing number was 0xFFFF, as monitored by the Readout Crate Software. Steps taken to address the problem • Sten had to change some jumpers on the Control Board (Not an issue). • He adjusted the appropriate setting of the transmitters and receivers on the cable, without which a turn no was lost every 5 sec. • Solution: Change the hardware equations for CPLD to accommodate the propagation time of the new frequency multiplier. Critical issue: • Resolve this sync. Error.

  5. Tests done • Pulser data was run on these 6 PDTs, with a fixed crossing and turn no. from the TFW. • Result: No Synchronization error noticed. Other jobs • Some changes have been made in the Front_End Readout code, wrt L3 data format, L3 transmission and 1553 multiblock transfers. • The CBs are set to communicate with the high speed UART rate of 2.5 mB. • There was a software downloading problem, but fixed. • MuoExamine revised to dump events with errors.

  6. What next ? • Readout the 6 PDTs successfully, without errors. • Everything needed to begin the test is in place. • Use L3 filters on the data for hit reconstruction. Installation Progress • 12 more B and C-layer CBs have been installed. • All are on the east side, vertical side. • Sufficient gas available to fill these, but the process shall halt till we have read the group of top 6 PDTs. • 6/12 have been tested with pulser, others in progress.

  7. Plans for the next month • Read the 6 top PDTs successfully, without any errors. • Readout the side 12 PDTs. • Readout 18 Central East side PDTs.

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