Difference between revisions of "Minutes-4-16-2015"
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# Engineering | # Engineering | ||
# Other | # Other | ||
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= Minutes = | = Minutes = | ||
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== Gas puzzle == | == Gas puzzle == | ||
| − | - Latest results from the CO2 sensor shown above: first plot using pressure correction that works for the CDC, second plot pressure correction that makes the certified gas flat. | + | - Latest results from the CO2 sensor shown above: first plot using pressure correction that works for the CDC, second plot pressure correction that makes the certified gas measurements flat. |
Conclusion: the C02 percentage in the CDC has stabilized at about 52-53%. Curtis: we need to do measurements and then decide if we want to change the gas mixture. At some point we need to add also alcohol to the gas. | Conclusion: the C02 percentage in the CDC has stabilized at about 52-53%. Curtis: we need to do measurements and then decide if we want to change the gas mixture. At some point we need to add also alcohol to the gas. | ||
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== CDC update == | == CDC update == | ||
| − | - | + | - Mike is working on a code for the CDC alignment using Millepede package. This package has been successfully used in many experiments for tracking alignment including the big LHC experiments. |
== FDC update == | == FDC update == | ||
| − | - Lubomir | + | - Now using tracking through all the packages Lubomir studied the old problem: the deviation of the cathode reconstructed |
== Electronics == | == Electronics == | ||
Revision as of 16:21, 16 April 2015
April 16, 2015 FDC+CDC meeting
Contents
Connection
- Instructions for Bluejeans meeting connection
- FDC meeting ID: 290664653
- To join via a Web Browser, go to the page [1] https://bluejeans.com/290664653.
Agenda
- Collaboration meeting talks (meeting page)
- Gas puzzle
- CDC update (Beni, Mike)
- FDC update (Lubomir)
- Electronics (Fernando, Cody, Chris, Nick)
- Engineering
- Other
Minutes
Participants: Curtis, Naomi(CMU), Eugene, Fernando, Mike, Sean, Chris, Nick, Cody, Simon, and Lubomir (JLab).
Collaboration meeting talks
- After some discussions we decided to have the following talks: Tracking (Simon), CDC update (Mike), FDC update (Lubomir), TR studies with spare package (Lubomir) 10min., f125 Update (Cody) 10 min. Naomi will come with an agenda for the collaboration meeting on the next DC meeting.
Gas puzzle
- Latest results from the CO2 sensor shown above: first plot using pressure correction that works for the CDC, second plot pressure correction that makes the certified gas measurements flat. Conclusion: the C02 percentage in the CDC has stabilized at about 52-53%. Curtis: we need to do measurements and then decide if we want to change the gas mixture. At some point we need to add also alcohol to the gas.
- Fernando: how stable the CO2 percentage should be. The way it works: one should correct for/calibrate the gas as often as possible. Naomi has simulated different gas mixtures. Also, one should correct for the pressure dependence - 1% pressure change results in 7% change of the amplitude.
CDC update
- Mike is working on a code for the CDC alignment using Millepede package. This package has been successfully used in many experiments for tracking alignment including the big LHC experiments.
FDC update
- Now using tracking through all the packages Lubomir studied the old problem: the deviation of the cathode reconstructed
Electronics
- The HV filter boxes have arrived.
- Nick and Chris will help with the spare package cabling and installation of the fADCs, HV and LV modules, as instructed by Fernando.
Other
- The FDC spare package was moved to the Tagger successfully (picture attached). It will be used to test it as a transition radiation detector. -->
