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Online ALCT in CLCT match window

Learn how to align ALCT and CLCT match windows effectively for optimal particle detection in your system. Understand the settings, delays, and best practices for achieving accurate results. Enhance your particle tracking efficiency today!

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Online ALCT in CLCT match window

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  1. Online ALCT in CLCT match window • If you wanted a CLCT match window width of 3bx, the value of the ALCT • to be centered in the CLCT match window should end up in bin 1 • Setting match_trig_alct_delay = 7 gives: • ALCT in CLCT match window[0] = 0 • ALCT in CLCT match window[1] = 0 • ALCT in CLCT match window[2] = 0 • ALCT in CLCT match window[3] = 0 • ALCT in CLCT match window[4] = 12 • ALCT in CLCT match window[5] = 72 • ALCT in CLCT match window[6] = 16 • ALCT in CLCT match window[7] = 0 • ALCT in CLCT match window[8] = 0 • ALCT in CLCT match window[9] = 0 • ALCT in CLCT match window[10] = 0 • ALCT in CLCT match window[11] = 0 • ALCT in CLCT match window[12] = 0 • ALCT in CLCT match window[13] = 0 • ALCT in CLCT match window[14] = 0 • ALCT in CLCT match window[15] = 0 • ALCT in CLCT match window average = 5.04 • The amount to shift the distribution by is 4.04 (= 4) • Best alct_match_window_delay = 3 Based on the current settings in the xml file: mpc_tx_delay = 3 and alct_match_window_delay = 4 • Best mpc_tx_delay = 4 Should use current set value for width, instead of setting this value…  Also, 10% value probably not good enough to compare with cable lengths… Need more reads…

  2. Tried B-Go commands • SP did not respond correctly to Resync, BC0… • TMB was resetting counters on “EC0” command… • Not even in the CCB manual… • Something may be messed up in translation from LTC  TTCci  CCB

  3. Next ideas for plans for slice test • BGo commands on one chamber • SP has new firmware… can try Thursday? • New TMB firmware: Layer trigger • Measure how much CLCT pattern shifts relative to ALCT • Maximize rate with CLCT layer/ALCT pretrigger-pattern parameters • Push CLCT pretrigger layer threshold down to 2. Map out phase space over following parameters... • comparator delay until signal peak: comp_delay • delay in bx between pretrigger and triggers for ALCT and CLCTs: alct_drift_delay and clct_drift_delay. • strip bit persistence: triad_persist. • Timing with pulsing (will move up in list when I have system…)

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