Difference between revisions of "AIEC Wish list"
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− | * Make sure that the initialization is scaling the gcf to its mean pressure equivalent, if it is not doing already. | + | * CDC |
+ | *# In progress (Naomi). Start incorporating new PrimEx 2022 data. Naomi will get gcfs, Diana will get epics w Thomas's help. | ||
+ | *# Scale 2018 gains up (gcf down) by the improved "6%" & add to the model. [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5813 See docdb] | ||
+ | *#* Status 12/8/2022 (Diana): Data available - initial results show that model has lower mean and max % error. Need to evaluate model on complete mesh and produce topo plots for Naomi to evaluate. | ||
+ | *# Done, but we might need to rethink. Separate the EPICS readings & rethink the averaging times. | ||
+ | *#* For the HVB current, take a window of 15 seconds, if all data are >0 then take the mean of the last 3 secs, if not, repeat until we have attempted this for 30 seconds and then give up if there are still 0s. Revert to 2125 (and not the HVBi from initialization, at least for now). | ||
+ | *#* Use a longer lookback for the temperature, because the readout is coarse and the value is important for the UQ. Use the mean instead of the max. 5 minutes. | ||
+ | *#* Consider what to use for pressure. 5 minutes.[[File:Beam_return.png|thumb|left|x200px|Beam current after trips]]<p style="clear:both;"></p> | ||
+ | *# Done. David: Move the EPICS reading + HV setting to Prestart. | ||
+ | *# Done. Make the EPICS reading + HV setting as fast as we can. | ||
+ | *# Done (Diana) ''Set up a standard series of tests for the raw gcfs from a new model, and also for the UQ corrected data. Start with a book of plots and possibly automate looking through the book. '' | ||
+ | *# Done (was done all along, 2021) ''Make sure that the initialization is scaling the gcf to its mean pressure equivalent, if it is not doing that already. So far all the inits have been done at mean pressure or close to it.'' | ||
+ | *# Done (Naomi - closer to 3% [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5813 Sept 2022]) ''Look more closely to find what the 6% correction should be. See if we can match beam current & radiator (ideally amo) & pressure. '' | ||
+ | *# Done (Thomas) - switching to data-collection outside the 3% confidence bubble. ''Discuss an option for "this is it" or "get more data", when to use auto-off and should there be an auto-on.'' | ||
+ | *# Done, unseen (Diana) Plot predicted std dev from the model vs the difference between predicted and traditional gcfs. | ||
+ | *# Done (Thomas/Diana) ''Re-enable the HVB current.'' | ||
+ | *# Done (Thomas/Torri, 11 Oct) - ''keep RoboCDC running but recommend 2125 for non-full-target runs. ie auto-collect for ET. '' | ||
+ | *# David: move the script to synchronous go. (Done) | ||
+ | *#* Need to revisit policy here to minimize lost beam time. Likely pushes back to start of prestart script. | ||
+ | *# '''(NEW ITEM) We need a better strategy for track rate dependence'''. (a) make a model using P & T alone (b) make a model using P/(T+offset) (c) show that HVBi is related to pressure, find an alternative track rate indicator and make a model using that instead. Note that PS rates only look at coherent peak photons, fraction of coherent peak is not constant (cf diamond vs amo), this might be the best that we have. Lower half of tagh counters are switched off at high rates. Electron beam current calibration changed. | ||
+ | *# Soft landing plan for model development with decreased input from Diana. Documentation + organization in progress (Diana). | ||
+ | * FDC - correlation between gcf & pressure was good for 2020, inconsistent for 2018. Torri needs to talk to Lubomir. | ||
+ | |||
+ | * BCAL - baselines and crate temperatures. Need an executive status summary. | ||
+ | * Other detectors - for capstone students. | ||
+ | *# first start w sqlite & ccdb api & ccdb table description spreadsheet & maybe some epics | ||
+ | *# FCal, BCal & TOF?? | ||
+ | *# David think about adding fadc temps to sync events, maybe hoss skimming them, maybe more syncs than at present. | ||
+ | *# Done (Naomi) ''Make a list of useful calibration tables & detectors. Ask the experts. ''[https://docs.google.com/spreadsheets/d/1cPaSrAiwM-_EmqCsJrMzZUCJFPWTxmoAfXBMotrDsVM/edit?usp=sharing CCDB] [https://docs.google.com/spreadsheets/d/1C6lJ3S_5pj_ariDfMVNg5n1iyFbjDV4QYBcpYHo6-90/edit?usp=sharing EPICS] |
Latest revision as of 20:30, 2 March 2023
- CDC
- In progress (Naomi). Start incorporating new PrimEx 2022 data. Naomi will get gcfs, Diana will get epics w Thomas's help.
- Scale 2018 gains up (gcf down) by the improved "6%" & add to the model. See docdb
- Status 12/8/2022 (Diana): Data available - initial results show that model has lower mean and max % error. Need to evaluate model on complete mesh and produce topo plots for Naomi to evaluate.
- Done, but we might need to rethink. Separate the EPICS readings & rethink the averaging times.
- For the HVB current, take a window of 15 seconds, if all data are >0 then take the mean of the last 3 secs, if not, repeat until we have attempted this for 30 seconds and then give up if there are still 0s. Revert to 2125 (and not the HVBi from initialization, at least for now).
- Use a longer lookback for the temperature, because the readout is coarse and the value is important for the UQ. Use the mean instead of the max. 5 minutes.
- Consider what to use for pressure. 5 minutes.
- Done. David: Move the EPICS reading + HV setting to Prestart.
- Done. Make the EPICS reading + HV setting as fast as we can.
- Done (Diana) Set up a standard series of tests for the raw gcfs from a new model, and also for the UQ corrected data. Start with a book of plots and possibly automate looking through the book.
- Done (was done all along, 2021) Make sure that the initialization is scaling the gcf to its mean pressure equivalent, if it is not doing that already. So far all the inits have been done at mean pressure or close to it.
- Done (Naomi - closer to 3% Sept 2022) Look more closely to find what the 6% correction should be. See if we can match beam current & radiator (ideally amo) & pressure.
- Done (Thomas) - switching to data-collection outside the 3% confidence bubble. Discuss an option for "this is it" or "get more data", when to use auto-off and should there be an auto-on.
- Done, unseen (Diana) Plot predicted std dev from the model vs the difference between predicted and traditional gcfs.
- Done (Thomas/Diana) Re-enable the HVB current.
- Done (Thomas/Torri, 11 Oct) - keep RoboCDC running but recommend 2125 for non-full-target runs. ie auto-collect for ET.
- David: move the script to synchronous go. (Done)
- Need to revisit policy here to minimize lost beam time. Likely pushes back to start of prestart script.
- (NEW ITEM) We need a better strategy for track rate dependence. (a) make a model using P & T alone (b) make a model using P/(T+offset) (c) show that HVBi is related to pressure, find an alternative track rate indicator and make a model using that instead. Note that PS rates only look at coherent peak photons, fraction of coherent peak is not constant (cf diamond vs amo), this might be the best that we have. Lower half of tagh counters are switched off at high rates. Electron beam current calibration changed.
- Soft landing plan for model development with decreased input from Diana. Documentation + organization in progress (Diana).
- FDC - correlation between gcf & pressure was good for 2020, inconsistent for 2018. Torri needs to talk to Lubomir.
- BCAL - baselines and crate temperatures. Need an executive status summary.
- Other detectors - for capstone students.
- first start w sqlite & ccdb api & ccdb table description spreadsheet & maybe some epics
- FCal, BCal & TOF??
- David think about adding fadc temps to sync events, maybe hoss skimming them, maybe more syncs than at present.
- Done (Naomi) Make a list of useful calibration tables & detectors. Ask the experts. CCDB EPICS