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Preliminary Results: September Test Beam of CSC Endcap Muon and Trigger Electronics

This report summarizes the results from the preliminary test beam conducted in September, focusing on the performance of two CSCs and their trigger electronics. The goal was to evaluate the complete data transmission chain from CSC front-end electronics to the Track-Finder trigger, with synchronous operation at 40 MHz. Notably, optical link connections were tested, achieving no errors over several hours and 95% agreement in logged data. The successful results are a promising step forward for the CSC group's ongoing development and refinement of the electronics.

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Preliminary Results: September Test Beam of CSC Endcap Muon and Trigger Electronics

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  1. Preliminary CSC Trigger Results from September Testbeam CSC Endcap Muon and CSC Trigger Electronics groups

  2. Beam Test of 2 CSC’s at X5a / Front-end cards Goal: complete electronic chain test of data transmission from CSC front-end electronics to the Track-Finder trigger, all operating synchronously at the 40 MHz structured beam

  3. CSC Track Finder Trigger Home-built PLL clock patch added to clean incoming TTC clock for links, but TTC QPLL also tested Test 3 × 1.6 Gb/s optical link connections from CSC electronics Uses TLK2501 chipset Requires very stable reference clock for error-free operation

  4. TTC QPLL Mezzanine card • Three made available to CSC group for testing at this month’s structured beam test • Provides stable clock signals at 40, 80, and 160 MHz

  5. BX Structure Seen by Track-Finder 48 bx

  6. Test Results • Using home-built PLL solution, or newest TTC QPLL solution for 80 MHz clock: • PLL’s lock to incoming machine clock • 40.078893 MHz • no errors on optical links reported over many hours • Data successfully logged by both CSC DAQ and CSC Track-Finder readout • Very preliminary inspection shows 95% exact agreement in data sent and received over optical links (15K events) • The remaining 5% are likely OK as well, but the simple analysis must be refined to handle data on multiple BX

  7. Comparison of TF Data with DAQ CSC Data from DAQ CSC Track-Finder Data CSC 1 CSC 2

  8. The Happy Track-Finder Group

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