Difference between revisions of "Private:Trigger Types"

From GlueXWiki
Jump to: navigation, search
(Replaced content with " Trigger Installation Activities")
Line 1: Line 1:
  
 
[[Trigger Installation Activities | Trigger Installation Activities]]
 
[[Trigger Installation Activities | Trigger Installation Activities]]
 
The main installation and trigger activities can be organized into the three main phases:
 
 
: '''1.  Initial installation phase, where only a few crates with electronics will be installed and connected to the sub-detector.'''
 
:*  Run stand alone DAC for each sub-detector. Start calibration of fadc pedestals, implementing calibration triggers and start tuning trigger parameters
 
::  - 4 TI boards were populated with 4 additional transceivers and can be used as master-TIs handling the clock and trigger distribution for up to 6 crates
 
::  - One extra transceiver was added to 4 TI boards. They can be used as a master-TI for small sub-systems (like the microscope, SC, PS)
 
: '''2. Final Detector installation'''
 
:* Use the global trigger distribution (the global trigger and the trigger distribution crates)
 
:: - Up to 4 sub-systems can run in parallel sharing the TS (TS partitioning).
 
:: - Calibrate DAQ (readout windows, pedestals, thresholds, etc.) and trigger parameters (offsets, threshold, etc.)
 
: '''3.  Detector Calibration with the Beam'''
 
 
 
 
<span style="color:#800000;font-size:120%"> Phase I  (Initial Installation)  </span>
 
 
 
'''BCAL'''
 
 
Can run up to 6 crates with the master TI
 
* Pulser for pedestals calibration
 
: Can be generated by the master TI
 
* Cosmic
 
: Generated by CTP in each crate. Possibility to generate the trigger for each BCAL module.
 
: ID of the 'fired' module is sent to the SSP along with the energy sum.
 
: The trigger is sent from the SSP front pannel to the master TI.
 
: Algorithm is being implemented.
 
* LED Pulser
 
: Initiated by 2 CAEN 1495 board (24 TTL outputs)
 
: LED pattern programmed through EPICS
 
: LVDS output is used as an external trigger for the master TI
 
 
 
'''FCAL'''
 
 
Can run up to 6 crates with the master TI
 
* Pulser for pedestals calibration
 
* Cosmic
 
: Energy summed in the crates (CTP). Energy threshold set at SSP.
 
: The trigger is sent from the SSP front pannel to the master TI.
 
* LED Pulser
 
: The same as for the BCAL
 
 
 
''' CDC '''
 
 
Can run up to 6 crates with the master TI
 
* External trigger from paddle scintillators
 
: Use as input to the master TI
 
 
 
'''FDC '''
 
 
Can run up to 6 crates with the master TI
 
* External trigger from the paddle scintillators
 
: Use as input to the master TI
 
 
 
'''TOF '''
 
 
One master TI to read out two crates
 
* Pulser for pedestal calibration
 
* Cosmic (?)
 
 
 
'''SC '''
 
* Pulser for pedestal calibration
 
* Cosmic
 
: Hit-bit trigger implemented on the CTP
 
: Algorithm is being implemented.
 
 
 
'''PS/PSC'''
 
* Pulser for pedestal calibration and SiPMs calibration
 
* Cosmic
 
: Hit-bit trigger implemented on the CTP
 
 
 
''' Tagger Hodoscope '''
 
 
One master TI to read out two crates
 
* Pulser for pedestal calibration
 
* Cosmic
 
: Hit-bit trigger implemented on the CTP
 
 
 
''' Microscope'''
 
 
One master TI to read out two crates
 
* Pulser for pedestal calibration and SiPM calibration
 
* Cosmic (?)
 
: Hit-bit trigger implemented on the CTP
 
 
 
<span style="color:#800000;font-size:120%"> Phase II  (Final Detector Installation)  </span>
 
 
Most trigger types will be implemented on the GTP/TS modules
 
* Random trigger
 
* Cosmic trigger algorithm for BCAL (FCAL)
 
: BCAL cosmic trigger will be used to readout CDC/FDC
 
* Hit bit pattern algorithms for the microscope, fixed array, and SC
 
* Track-based algorithm for the TOF
 
* PS coincidence trigger
 
* Physics trigger implemented & checked with the play back mode (possibly break down into several trigger types)
 
 
 
<span style="color:#800000;font-size:120%"> Phase III  (Beam)  </span>
 
 
Initial triggers:
 
* Tagger
 
* Tagger + SC
 
* Tagger + (SC) + TOF
 
* Tagger + FCAL/BCAL
 

Revision as of 17:33, 17 October 2013

Trigger Installation Activities