Difference between revisions of "Trigger Commissioning"
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Below are some general steps describing the trigger commissioning with the | Below are some general steps describing the trigger commissioning with the | ||
| − | photon beam | + | photon beam. |
| − | + | ||
=== Phase 1: Photon-beam Commissioning === | === Phase 1: Photon-beam Commissioning === | ||
| − | * '''PS stand alone trigger''' (2 - 3 days) | + | * '''PS stand alone trigger''' (2 - 3 days) <span style="color:red">'''(Done)'''</span> |
: - trigger with PSC | : - trigger with PSC | ||
: - read out PS and PSC | : - read out PS and PSC | ||
| − | : - trigger distribution through GTP. Use | + | : - trigger distribution through GTP. Use PSC self trigger if problems with GTP |
=== Phase 2: Photon Beam in the Hall === | === Phase 2: Photon Beam in the Hall === | ||
| − | * '''Tune FCAL trigger''' (2 - 3 days) | + | * '''Tune FCAL trigger''' (2 - 3 days) <span style="color:red">'''(Done)'''</span> |
: - trigger based on the global energy sum | : - trigger based on the global energy sum | ||
: - read out FCAL only, raw mode for fadc250 | : - read out FCAL only, raw mode for fadc250 | ||
| Line 18: | Line 17: | ||
: - study rates for various trigger thresholds | : - study rates for various trigger thresholds | ||
| − | * '''Add CDC, FDC, BCAL, ST, TOF (TAGM/TAGH) to the read out''' (4 - 5 days) | + | * '''Add CDC, FDC, BCAL, ST, TOF (TAGM/TAGH) to the read out''' (4 - 5 days) <span style="color:red">'''(Done)'''</span> |
: - tune timing, adjust trigger prescalings | : - tune timing, adjust trigger prescalings | ||
| + | : - take data with TAGM/TAGH and the PS for the tagging efficiency study and calibration | ||
* '''Take some data for detector calibration''' | * '''Take some data for detector calibration''' | ||
: - production runs during nights if the system is robust | : - production runs during nights if the system is robust | ||
: - run with high-energy thresholds | : - run with high-energy thresholds | ||
| − | : - low-energy thresholds for CDC/FDC calibration | + | : - low-energy thresholds for CDC/FDC calibration (may not work given the current FCAL performance) |
| − | * '''Tune BCAL trigger''' (2 - 3 days) | + | * '''Tune BCAL trigger''' (2 - 3 days) <span style="color:blue">'''(In progress)'''</span> |
: - trigger based on the global energy sum | : - trigger based on the global energy sum | ||
: - alternate FCAL production runs with the BCAL trigger tuning | : - alternate FCAL production runs with the BCAL trigger tuning | ||
| Line 37: | Line 37: | ||
* ''' Integrate & tune TAGM/TAGH to the trigger (low priority)''' (4 - 5 days) | * ''' Integrate & tune TAGM/TAGH to the trigger (low priority)''' (4 - 5 days) | ||
| − | + | ||
| − | : - | + | |
| + | |||
| + | Note, commissioning may require significantly more time depending | ||
| + | on the system performance. | ||
| + | |||
| + | === Global Trigger Performance at High Rate === | ||
| + | * Some test can be done without the beam using the the trigger Play Back (PB) and LED pulsers: | ||
| + | : Check FCAL trigger/read out performance for various PB and LED rates. Will be performed likely after the beam test | ||
| + | :: - read out BCAL/FCAL using raw, pulse integral, time + pulse integral (FCAL) fadc modes | ||
| + | :: - detector occupancy of 1 and 5 % | ||
| + | :: - block level = 1 and 50 | ||
| + | :: - buffer level = 1 and 5 | ||
| + | * Check rates with the beam by lowering trigger thresholds (low priority) | ||
| + | :: - change read out modes | ||
Latest revision as of 20:27, 20 November 2014
Below are some general steps describing the trigger commissioning with the photon beam.
Phase 1: Photon-beam Commissioning
- PS stand alone trigger (2 - 3 days) (Done)
- - trigger with PSC
- - read out PS and PSC
- - trigger distribution through GTP. Use PSC self trigger if problems with GTP
Phase 2: Photon Beam in the Hall
- Tune FCAL trigger (2 - 3 days) (Done)
- - trigger based on the global energy sum
- - read out FCAL only, raw mode for fadc250
- - adjust trigger parameters, tune timing
- - study rates for various trigger thresholds
- Add CDC, FDC, BCAL, ST, TOF (TAGM/TAGH) to the read out (4 - 5 days) (Done)
- - tune timing, adjust trigger prescalings
- - take data with TAGM/TAGH and the PS for the tagging efficiency study and calibration
- Take some data for detector calibration
- - production runs during nights if the system is robust
- - run with high-energy thresholds
- - low-energy thresholds for CDC/FDC calibration (may not work given the current FCAL performance)
- Tune BCAL trigger (2 - 3 days) (In progress)
- - trigger based on the global energy sum
- - alternate FCAL production runs with the BCAL trigger tuning
- Production runs with BCAL (FCAL & BCAL) triggers
- Tune TOF/ST triggers (4 - 5 days)
- Take additional calibration data for CDC/FDC
- Integrate & tune TAGM/TAGH to the trigger (low priority) (4 - 5 days)
Note, commissioning may require significantly more time depending on the system performance.
Global Trigger Performance at High Rate
- Some test can be done without the beam using the the trigger Play Back (PB) and LED pulsers:
- Check FCAL trigger/read out performance for various PB and LED rates. Will be performed likely after the beam test
- - read out BCAL/FCAL using raw, pulse integral, time + pulse integral (FCAL) fadc modes
- - detector occupancy of 1 and 5 %
- - block level = 1 and 50
- - buffer level = 1 and 5
- Check rates with the beam by lowering trigger thresholds (low priority)
- - change read out modes
