Difference between revisions of "Private:Trigger Types"

From GlueXWiki
Jump to: navigation, search
m (Reverted edits by Marki (talk) to last revision by Somov)
 
(13 intermediate revisions by 2 users not shown)
Line 1: Line 1:
The main installation and trigger activities can be organized into the three main phases:
+
[[Trigger Installation Activities | Trigger Installation Activities]]
  
: '''1.  Initial installation phase, where only a few crates with electronics will be installed and connected to the sub-detector.'''
+
[https://halldweb1.jlab.org/level-1/algorithm/trigger_types.pdf Trigger Types (draft)]
:*  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>
+

Latest revision as of 13:00, 8 February 2016

Trigger Installation Activities

Trigger Types (draft)