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Flasher Pulser Strobe1 Strobe2 Config Parameters

This page describes the config file parameters governing the flasher, pulser, strobe1, and strobe2. An example excerpt from a config file is shown below (from config 681, PHYSICS_BNB_NUMI_MUCS_EXT6990mHz_SWTrigger_2Stream_LowThreshold50_c2.fcl), with explanations of what each parameter means.

Flasher: [  {
  amplitude : 0.1
  burstmode : 0
  channel : 2
  frequency : 1e4
  ip : "192.168.144.192" 
  output : 0
  pulsewidth : 20
  reconfigure : true
}  ]
Pulser: [  {
  amplitude : 0.1
  burstmode : 0
  channel : 1
  frequency : 1e4
  ip : "192.168.144.192" 
  output : 0
  pulsewidth : 20
  reconfigure : true
}  ]
Strobe1: [  {
  amplitude : 0.8
  burstmode : 0
  channel : 1
  dcoffset : -0.4
  frequency : 6.99
  ip : "192.168.144.191" 
  output : 1
  polarity : 0
  pulsewidth : 5
  reconfigure : true
}  ]
Strobe2: [  {
  amplitude : 0.8
  burstmode : 0
  channel : 2
  dcoffset : -0.4
  frequency : 0.1
  ip : "192.168.144.191" 
  output : 0
  polarity : 0
  pulsewidth : 5
  reconfigure : false
}  ]
The four main sections defined here are:
  • Flasher:
  • Pulser:
  • Strobe1:
  • Strobe2: Not used - ignore!
In each of these sections, some subset of the following parameters are defined:
  • amplitude:
  • burstmode:
  • channel:
  • dcoffset:
  • frequency: As the name suggests, controls the frequency. For example, in Strobe1 you see frequency : 6.99. That indicates that the EXT trigger should run with a frequency of 6.99 Hz. The limit for the system is 12 Hz.
  • ip:
  • output:
  • polarity:
  • pulsewidth:
  • reconfigure: