LED Pulser

1
LED Pulser Scintillator Readout

• Steven Doulas
• Northeastern University
• D0 Muon Upgrade Meeting
• 10 November 2000

2
LED Pulser Electronics Status

• Central Muon
• PPB and SLP installed in 2 of 6 front end
  scintillator crates
• CES (Central East Side)
• Aphi wall 010-020-030(TB)
• PDTs 117-127-137
• PDTs 210-220-230 217-227-237
• CEB (Central East Bottom)
• Aphi floor 016-026-036
• PDTs 106, 206, 146, 246
• PDTs 116, 136
• Forward Muon
• PPB and SLP installed in front end scintillator
  crates which service North AB layer (4 crates)

3
LED Pulser DAQ

• Secondary local DAQ
• Does not run under Trigger Frame Work
• Runs in local mode
• Code is downloaded to Muon Readout Crate (VME162)
  and acts as a server
• Client program called amp (Vladimir P.) used
  to display ROOT histograms
• Recent Progress
• Amp program now running on the Online Linux
  machines
• d0ol02-d0ol09
• Amp program can now write L3 formatted data to
  disk
• Amp works easily for central muon crate and
  forward muon pixel octants

4
LED Pulser and Scintillator Readout

• LED Pulsing of Central East Side (CES) FES-Crate
• Readout PMTs for 206 and its corresponding PIN
• Plot 1 is collecting PIN data using Test Pulse
  Trigger mode in the FE-crate (TP L1-accept)
• Plot 2 is collecting PMT and PIN data using
  local Trig-OR mode in FE-crate
• Current Plan
• Working on COMICS (Fritz B.) download of
  LED-Pulser run parameters for each scintillator
  front-end crate
• This includes mapping of all PIN channels
  default settings
• MuoScLedPulLoad.py CEB
• Take more LED Pulser runs !