Difference between revisions of "Nov 16, 2017 Calorimeter"
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# Check in the code, including scripts, that is used for recent calibrations into git (BCAL: Mark) | # Check in the code, including scripts, that is used for recent calibrations into git (BCAL: Mark) | ||
− | # Andrei's time calibration cod [Zisis and Elton need to suggest process for checking] | + | # <strike> Andrei's time calibration cod [Zisis and Elton need to suggest process for checking] </strike> Zisis will ask Ahmed to take over the timing from Andrei and gain calibrations with comics will be taken over by Tegan. |
− | # Add Fcal dead channels into the MC | + | # Add Fcal dead channels into the MC. [Matt and Elton] |
− | + | ||
# Add monitoring plots for charged particle clusterizer [Will to suggest plots and collaborate with Mark] | # Add monitoring plots for charged particle clusterizer [Will to suggest plots and collaborate with Mark] | ||
− | |||
# BCAL matching efficiency: We will need to work on two issues: a) why inclusion of correct material in BCAL affects the matching and b) why the matching efficiency decreased from about 85% when the charged clusterizer was included into the analysis. | # BCAL matching efficiency: We will need to work on two issues: a) why inclusion of correct material in BCAL affects the matching and b) why the matching efficiency decreased from about 85% when the charged clusterizer was included into the analysis. | ||
+ | |||
+ | Complete after new launch | ||
+ | # Report back on study of eta with in FCAL [Mark] | ||
+ | # From Mike's work: -cos(phi) type dependence in the data and a phi dependence at the downstream end of the bcal | ||
= References = | = References = | ||
Line 50: | Line 52: | ||
= Minutes = | = Minutes = | ||
+ | |||
+ | '' Attending: Elton, Mark, Colin (JLab); Zisis, Tegan, Ahmed (UofR); Christina, George (Athens); Will (CMU); Jon, Matt (IU) | ||
+ | |||
+ | # Announcements | ||
+ | #* Accelerator is on schedule to deliver beam by Dec 4, perhaps earlier. | ||
+ | # Action Items | ||
+ | # FCAL Update | ||
+ | ## Run preparations (Colin) | ||
+ | ##* Need to replace 19 bases. 29 bases are fixed; 14 are tested and stable under HV. 15 need testing. | ||
+ | ##* Chris and Nick will replace bases next week | ||
+ | ##* Need to set new HV based on updated gains. Can use Adesh's method, or retake data of response vs voltage using LED data and use new curves | ||
+ | ##* Plan is to use Adesh's constants to start and retake data for comparison and use for new bases/bases. | ||
+ | ## Other updates | ||
+ | ##* Matt: Are pedestals taken automatically? Elton: Serguei usually does this at the beginning of the run. | ||
+ | ##* Note: Mark takes care of TDC threshold settings for BCAL. We should add these to the checklist so it won't be forgotten.# BCAL update | ||
+ | ## Run preparations | ||
+ | ##* Tegan and Ahmed checked that all SiPMs were operational about a month ago. | ||
+ | ##* Upstream chiller was running at a high pressure and was replaced with a spare. Need to check that it is behaving. | ||
+ | ##* Elton powered up all channels this morning. Chillers are still set to 18 deg C. | ||
+ | ## Other updates | ||
+ | # Calibrations | ||
+ | ## Fcal: Colin asked about availability of pi0 files for 2016 at IU. May need to be staged before processing. | ||
+ | ##* Updated timing algorithm using the energy weighted average is in place and ready. | ||
+ | ##* Gain constants for 2017 low intensity have been sent to Sean. [2017 high intensity are already in ccdb] | ||
+ | ## [https://halldweb.jlab.org/DocDB/0034/003475/002/pi0update.pdf Exclusive pi0 calibration update] | ||
+ | ##* Will showed the gain calibrations after 38 iterations using the matrix inversion method. Pi0 width is comparable to that obtained by Will. | ||
+ | ##* Comparison of constants shows that the new constants (blue and green) are in a tighter distribution than Will's (red). Will asked if the red points are for the latest calibrations as they seem too broad. Tegan will check. | ||
+ | ##* Elton: It would be useful to show the y projection for each set of constants. Mark: Once the correct ccdb constants are obtained it would be interesting to show the difference compared to new ones (e.g. gain constant difference vs channel number, as well as projection). | ||
+ | # Reconstruction and Simulation | ||
+ | # NIM articles | ||
+ | #* Elton: Draft has incorporated all of Eugene's comments. Ahmed sent in the last figure updates yesterday. The new documents needs new careful read after so many changes. Plan to have a "final draft" available before Thanksgiving. | ||
+ | # Any other business |
Latest revision as of 13:24, 16 November 2017
Contents
Video Conferencing Information
Meeting Time: 11:00 a.m.
- To join via a Web Browser, go to the page [1] https://bluejeans.com/907185247.
- To join via Polycom room system go to the IP Address: 199.48.152.152 (bjn.vc) and enter the meeting ID: 907185247.
- To join via phone, use one of the following numbers and the Conference ID: 907185247.
- US or Canada: +1 408 740 7256 or
- US or Canada: +1 888 240 2560
- Upon connection all microphones are automatically muted. To unmute your mike on a Polycom or equivalent unit, enter *4. Unmuting on a computer is trivial as there is a microphone button than can be clicked.
- More information on connecting to bluejeans is available.
Participant Direct Lines
- JLab Phone in CC L207 is 757-269-7084 (usual room)
- JLab Phone: in CC F326 is 757-269-6460
- Phone in the Regina Video-conference Suite is 306-585-4204
- Athens Phone: in Christina's office is 011-30-210-727-6947
Action Items
- Check in the code, including scripts, that is used for recent calibrations into git (BCAL: Mark)
-
Andrei's time calibration cod [Zisis and Elton need to suggest process for checking]Zisis will ask Ahmed to take over the timing from Andrei and gain calibrations with comics will be taken over by Tegan. - Add Fcal dead channels into the MC. [Matt and Elton]
- Add monitoring plots for charged particle clusterizer [Will to suggest plots and collaborate with Mark]
- BCAL matching efficiency: We will need to work on two issues: a) why inclusion of correct material in BCAL affects the matching and b) why the matching efficiency decreased from about 85% when the charged clusterizer was included into the analysis.
Complete after new launch
- Report back on study of eta with in FCAL [Mark]
- From Mike's work: -cos(phi) type dependence in the data and a phi dependence at the downstream end of the bcal
References
- FCAL HDFCAL log book
- BCAL HDBCAL log book
Tentative Agenda
- Announcements
- Action Items
- FCAL Update
- Run preparations
- Other updates
- BCAL update
- Run preparations
- Other updates
- Calibrations
- Reconstruction and Simulation
- NIM articles
- Any other business
Minutes
Attending: Elton, Mark, Colin (JLab); Zisis, Tegan, Ahmed (UofR); Christina, George (Athens); Will (CMU); Jon, Matt (IU)
- Announcements
- Accelerator is on schedule to deliver beam by Dec 4, perhaps earlier.
- Action Items
- FCAL Update
- Run preparations (Colin)
- Need to replace 19 bases. 29 bases are fixed; 14 are tested and stable under HV. 15 need testing.
- Chris and Nick will replace bases next week
- Need to set new HV based on updated gains. Can use Adesh's method, or retake data of response vs voltage using LED data and use new curves
- Plan is to use Adesh's constants to start and retake data for comparison and use for new bases/bases.
- Other updates
- Matt: Are pedestals taken automatically? Elton: Serguei usually does this at the beginning of the run.
- Note: Mark takes care of TDC threshold settings for BCAL. We should add these to the checklist so it won't be forgotten.# BCAL update
- Run preparations
- Tegan and Ahmed checked that all SiPMs were operational about a month ago.
- Upstream chiller was running at a high pressure and was replaced with a spare. Need to check that it is behaving.
- Elton powered up all channels this morning. Chillers are still set to 18 deg C.
- Other updates
- Run preparations (Colin)
- Calibrations
- Fcal: Colin asked about availability of pi0 files for 2016 at IU. May need to be staged before processing.
- Updated timing algorithm using the energy weighted average is in place and ready.
- Gain constants for 2017 low intensity have been sent to Sean. [2017 high intensity are already in ccdb]
- Exclusive pi0 calibration update
- Will showed the gain calibrations after 38 iterations using the matrix inversion method. Pi0 width is comparable to that obtained by Will.
- Comparison of constants shows that the new constants (blue and green) are in a tighter distribution than Will's (red). Will asked if the red points are for the latest calibrations as they seem too broad. Tegan will check.
- Elton: It would be useful to show the y projection for each set of constants. Mark: Once the correct ccdb constants are obtained it would be interesting to show the difference compared to new ones (e.g. gain constant difference vs channel number, as well as projection).
- Fcal: Colin asked about availability of pi0 files for 2016 at IU. May need to be staged before processing.
- Reconstruction and Simulation
- NIM articles
- Elton: Draft has incorporated all of Eugene's comments. Ahmed sent in the last figure updates yesterday. The new documents needs new careful read after so many changes. Plan to have a "final draft" available before Thanksgiving.
- Any other business