Difference between revisions of "Transversity/Expert Checklist"
From Hall A Wiki
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{{Pass|''Notice : Please add items of your specialty field, so every one will do the check''}} | {{Pass|''Notice : Please add items of your specialty field, so every one will do the check''}} | ||
| − | == | + | == Beamline, beam charge, beam polarization, Luminosity monitors == |
| + | # Intrinsic beam size. Harp scan once in a week. | ||
| + | # Happex charge feed back is On ? | ||
| + | # Beam charge asymmetry is below 100 ppm ? (Check end-of-run, and run Happex replay) | ||
| + | # Lumi signals and replay OK ?, no saturation ?. | ||
| + | # Beam charge at end-of-run make sense ? | ||
| − | == | + | == Run information == |
| + | # Check scaler rate screen, pre-scale factors agree with earlier runs. | ||
| + | # Check online CODA rate and CODA dead time. (Run scaler script, verify deadtime) | ||
| + | # Check start-of-run input. Target type, beam half wave plate, etc. | ||
| + | # Happex run start ahead of transversity run ? (Happex run ends every four hours or so ?) | ||
| + | # Look at shift worker's run-sheet records. | ||
| + | # Confirm CODA not crashed, check DAQ-configuration: twoarm_RICH. | ||
| + | # Check Halog entries. | ||
| + | # Check if spin-flip is ON. Check target polarization history. | ||
| + | # Check all HV on. BB chamber HV on before run starts. | ||
| − | == | + | == [[Online_Replay#Expert_Info|Replay]] == |
| + | |||
| + | [[Online_Replay#HowTo_Quick_Check_Root_File_Replayed_by_Shift_Worker|Run show_all(<run number>) script]] after shift worker finish a replay. It will pop up a set of plots for expert, which would take ~10min to check through. | ||
| + | |||
| + | A list of minimum check items : (Item / {{pass|related online plots}}) | ||
| + | # Check left-HRS VDC efficiency / {{pass|online("detectorL",run#)}} | ||
| + | # Check BB chamber wire map / {{pass|online("detectorBB",run#)}} | ||
| + | # Check BB shower vs preshower ADC plot, threshold not changed / {{pass|online("physics",run#)}} | ||
| + | # Check scaler consistency / {{pass|online("scalar",run#)}} | ||
| + | # Spot++, BPM A and B (x,) positions / {{pass|online("detectorL",run#)}} | ||
| + | |||
| + | == A list of known problems / possible bad runs == | ||
| + | # BB chamber HV not on all the time. | ||
| + | # Left-arm VDC gas problem, low efficiency. | ||
| − | |||
== Helpful Resources == | == Helpful Resources == | ||
Revision as of 21:15, 23 November 2008
Quick Links:
This is the check list for experts on transversity data checker shift.
Notice : Please add items of your specialty field, so every one will do the check
Contents
Beamline, beam charge, beam polarization, Luminosity monitors
- Intrinsic beam size. Harp scan once in a week.
- Happex charge feed back is On ?
- Beam charge asymmetry is below 100 ppm ? (Check end-of-run, and run Happex replay)
- Lumi signals and replay OK ?, no saturation ?.
- Beam charge at end-of-run make sense ?
Run information
- Check scaler rate screen, pre-scale factors agree with earlier runs.
- Check online CODA rate and CODA dead time. (Run scaler script, verify deadtime)
- Check start-of-run input. Target type, beam half wave plate, etc.
- Happex run start ahead of transversity run ? (Happex run ends every four hours or so ?)
- Look at shift worker's run-sheet records.
- Confirm CODA not crashed, check DAQ-configuration: twoarm_RICH.
- Check Halog entries.
- Check if spin-flip is ON. Check target polarization history.
- Check all HV on. BB chamber HV on before run starts.
Replay
Run show_all(<run number>) script after shift worker finish a replay. It will pop up a set of plots for expert, which would take ~10min to check through.
A list of minimum check items : (Item / related online plots)
- Check left-HRS VDC efficiency / online("detectorL",run#)
- Check BB chamber wire map / online("detectorBB",run#)
- Check BB shower vs preshower ADC plot, threshold not changed / online("physics",run#)
- Check scaler consistency / online("scalar",run#)
- Spot++, BPM A and B (x,) positions / online("detectorL",run#)
A list of known problems / possible bad runs
- BB chamber HV not on all the time.
- Left-arm VDC gas problem, low efficiency.
