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DAQMB/FEBs Readiness for First Beam

Discover the importance of precise timing and synchronization in the electronics system for the first beam run. Learn about the stages of beam advancement, tools for data collection, and the significance of improved timing for efficiency and reduced errors.

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DAQMB/FEBs Readiness for First Beam

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  1. DAQMB/FEBs Readiness for First Beam Jianui Gu The Ohio State University

  2. Electronics - First Beam Overview This is a Machine Run (for them and us) First Priority is to “Time In” the Electronics • Beam Will Advance in Stages: • Halo Muons, Low Luminosity Collisions,… • Thus timing will advance in stages… • Tools: • Greg’s Radioactive Triggers(done now) • special runs single chambers • requires rate • Shift timing all chambers take data • requires data analysis • no special software written • Cosmic Ray – Crude Timing • random arrival (anytime) • random direction (speed of light) • Colliding Beams-Precise Timing • precise arrival (3 nsec) • fixed time of flight Data and Time will be taken for Solely Hardware Purposes

  3. Electronics - First Beam Overview Improved timing should lead to: DAQ Board Readout Efficiency 100% Reduction of Board Readout Errors Beam gives better understanding of timing and synchronization: Test Beam 2003 –time structured beam Cathode Pulse Peak Time (avg 6 planes) LHC Beam Structure (initial separation 75 nsec) Cathode Pulse Peak Time (avg 6 planes)  ~5nsec dominated by electron drift Time (nsec) Time (bunch crossings)

  4. Electronics – Expected Status • Live Electronics First Beam • by next week all pc crate electronics done • bad CFEBs,ALCTs • connector, cables … Expect no access to chamber electronics before first beam On Chamber Problems: 12 CFEBs (kill 1/5 chamber each) 9 ALCTs (kill full chamber each) Enter run with 97% Chamber Live

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