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The CNO trigger, in combination with TKR and CAL triggers will be the main trigger for the test. Some runs will be taken with external trigger, others will be taken with standard internal trigger made with TKR and CAL primitives. Please note that without external trigger we will have some contamination from CR.
A periodic trigger, with variable frequency, will be in parallel to the main particle trigger all the runs, in order to sample the hardware status with random triggers.
All these requestes are implemented through the specific multiple trigger engines defined below, each of which mapped to a specific BT configuration. Here is a list of the configurations used.
Any of the EXTERNAL, CNO, TKR, CAL-LO, CAL-HIGH, PERIODIC signal can open the trigger window.
Name | summary |
|---|---|
BT50 | flight-like CNO but NZS + periodic 5Hz |
Condition | engine |
CNO&&TKR&&ANY-CAL | 4-range, NZS |
periodic(5Hz) | 4-range, NZS |
CNO&&anything else | auto-range, ZS |
Name | summary |
|---|---|
BT51 | flight-like CNO + periodic 5Hz |
Condition | engine |
CNO&&TKR&&CAL-LO | auto-range, ZS |
periodic(5Hz) | 4-range, NZS |
CNO&&anything else | auto-range, ZS |
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Name
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summary
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BT52
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Condition
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engine
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EXTERNAL
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4-range, NZS
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periodic(5Hz)
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4-range, NZS
Name | summary |
|---|---|
BT53 | external trigger, ZS, periodic 5Hz |
Condition | engine |
EXTERNAL | 4-range, ZS |
periodic(5Hz) | 4-range, NZS |
Name | summary |
|---|---|
BT54 | external trigger, ZS, periodic high rate |
Condition | engine |
EXTERNAL | 4-range, ZS |
periodic(100Hz) | 4-range, NZS |
List of runs
Below is a list of specific run requests. Plese update the table and notify Luca so that a proper run schedule can be developed and agreed with GSI
Purpose | preferred schedule | Ion | Energy | Rate on CU | Beam focus | Trigger | notes | reference |
|---|---|---|---|---|---|---|---|---|
Test multiple trigger engines prior to beam | nov 16-17 | NA | NA | NA | NA | all BTs | change CNO thresholds, periodic frequency | luca |
Test multiple trigger engines w beam | nov 18 | C | 1.5Gev/n | 100Hz | any | all BTs | change CNO thresholds, periodic frequency | luca |
Monitor beam rate and conditions | nov 18 | C | 1.5Gev/n | 10-1000Hz | play with focus to change beam intensityon CU | BT52, BT53 | to be repeated shortly per configuration change | luca |
Rate scan | after multiple engine work | C | 1.5Gev/n | 10-1000Hz | play with focus to change beam intensity on CU | BT50, BT51, BT54 | vary periodic trigger frequency to induce pedestal drift | luca, eric g |
Tracking performance | nov 18 any time | C,Xe | 1.5Gev/n | 10-1000Hz | far and near focus | BT50, BT51, BT52 | investigate tracking at different rates and angles (0,30,45,60 TBD), scan tower3 w/o ACD tile with ext trigger | leon, INFN |
Tracking saturation | nov 18 any time | C,Xe | 1.5Gev/n | 10-1000Hz | far focus | BT50, BT51 | scan different angles (0,30,45,60 TBD), scan tower3 w/o ACD tile with ext trigger | leon, INFN |
CAL calibration | nov 18 | C,Xe | 600MeV/n, 1GeV/n, 1.5GeV/n | 100Hz | far and near focus | BT50 | verify quenching factors, CAL calibrations, ACD partial calibration | CAL team |
CAL calibration comparison with previous results | nov 18 | C,Xe | 1.5GeV/n | 100Hz | far and near focus | BT50, BT51 | beam on tower1 to avoid TKR in the line | CAL team |
Energy scan | nov 19 | C,Xe | 600MeV/n - 1.5GeV/n in steps | 10-1000Hz | far and near focus | BT51 | attempt to simulate different ions by varying ionization energy | nicola |
Secondary ions with target | nov 19 | Xe | 1.5GeV/n | 10-1000Hz | far and near focus | BT50 | attempt to get different ions by shooting beam through a target - need verification with GSI people | benoit |
Charge injection in CAL with beam | nov 19 | C | 1.5GeV/n | 10-1000Hz | far and near focus | BT50 | check pedestal restoration with beam ON, explore different beam rates; can use existing CalibGenCAL script | sasha |
Charge injection in TKR with beam | nov 19 | C | 1.5GeV/n | 10-1000Hz | far and near focus | BT50 | check rate effect in TKR signal; must identify CI script and plots to monitor | leon, TKR team |
scintillation measurement in CDE | nov 19 | C, Xe? | 1.5GeV/n | 100Hz |
| NA | place another detector upstream and monitor signal pulse | benoit |