Difference between revisions of "Minutes-1-8-2015"
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- Mike was working on a tool to view the signals from the fADC125 modules in a single crate using the built-in pulser. Mike is also working on the CDC efficiency, it's >90% if require the track to be at <1mm to the wire. | - Mike was working on a tool to view the signals from the fADC125 modules in a single crate using the built-in pulser. Mike is also working on the CDC efficiency, it's >90% if require the track to be at <1mm to the wire. | ||
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== FDC update == | == FDC update == | ||
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- Vlad showed plots from the latest runs indicating that we have much more hits per event with the new FCAL&TOF trigger compared with the previous runs with FCAL or BCAL trigger (first plot). Also he showed that for the gain calibration most likely one needs at least 60k hits per plane, the gain coefficient distributions are wider with lower statistics. | - Vlad showed plots from the latest runs indicating that we have much more hits per event with the new FCAL&TOF trigger compared with the previous runs with FCAL or BCAL trigger (first plot). Also he showed that for the gain calibration most likely one needs at least 60k hits per plane, the gain coefficient distributions are wider with lower statistics. | ||
| − | == | + | == Electronics == |
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- The FDC chiller will be shipped for repair first week of January. We expect it back at the end of February. Curtis: according to Eugene the spring run for Hall D will start at the beginning of April. | - The FDC chiller will be shipped for repair first week of January. We expect it back at the end of February. Curtis: according to Eugene the spring run for Hall D will start at the beginning of April. | ||
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- Naomi asked about the plans for reducing the noise from the CAEN HV modules: Chris and Nick are planing to work on re-routing the HV cables in the CDC, Fernando discussed with Eugene the option for installation of filters on the back of the modules. | - Naomi asked about the plans for reducing the noise from the CAEN HV modules: Chris and Nick are planing to work on re-routing the HV cables in the CDC, Fernando discussed with Eugene the option for installation of filters on the back of the modules. | ||
| − | -- | + | == Engineering == |
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| + | - The FDC chiller is ready for shipping (or has been shipped), expect it back in 6-7 weeks. | ||
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| + | - We discussed options for turning off the power of the FDC chiller in case the temperature of the Fluorinert is out of the limits. On the next day Dave looked into this and decided the do something he's doing for HallB: external box that is plugged between the outlet and the chiller (note: 208V three phases 30A). It has a relay inside controlled by the PLC system that is taking the temperature from the epics readings of the chiller. | ||
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| + | == Other == | ||
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| + | - Eugene expects from the drift chamber groups results on: efficiency, alignment, resolution, by the end of the month. | ||
Revision as of 18:53, 9 January 2015
December 18, 2014 FDC+CDC meeting
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
- CDC update (Mike)
- FDC update gas difference, gain calibration(Lubomir, Vlad)
- Other:electronics, engineering
