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| | = Minutes = | | = Minutes = |
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| − | Participants: Bill, Dave, Chris, Nick, Simon, Vlad, Eugene, and Lubomir. | + | Participants: Bill, Dave, Vlad, Beni, Nick, and Lubomir. |
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| | == Installation preparations == | | == Installation preparations == |
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| − | - We discussed briefly the status in the Hall with respect to what is needed for the FDC installation. The electronics racks are on one side of the platform but not installed yet (Dave), rather just used as a template to mark the positions of the cable opening. After BCAL is installed the BCAL platform will be removed; for the cabling of the bottom of the FDC we will use something temporary there. At the same time the transformers should be installed there, but not clear how much space they will occupy. | + | - As indicated by Elton, after the BCAL was inserted in the magnet, it might be down w.r.t. the magnet axis by ~1/8". BCAL will be surveyed and then we will have the final numbers. However they will start the installation of the rails inside BCAL soon and we discussed how they should be aligned. For the FDC the most important is to be aligned w.r.t. the beam line. We have copper-free area of 12mm radius and insensitive area of 30mm, so 3mm is significant given the sharp rise of the background rates with the distance to the beam. |
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| − | - Gas system: nothing is in the Hall yet. There are penetration between the gas room and the Hall, but not yet to the gas bottles outside. The plan is to use plastic tubes from the gas room through the Hall to the detector. We want to check if using such a long plastic tubes will increase the Oxygen contamination. We can use the Oxygen sensor right now connected to the spare package. In the next weeks when Beni is back, we want to discuss the gas control with Narciso and Dave. | + | - According to Bill the nominal spacer between the BCAL plate and the rails is 3/16" thick (4.76mm) |
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| − | - Bill will check if the chilled water is readily available, and how and when the dry air system will be set-up.
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| − | - Bill attended a kind of QA readiness review for the FDC cabling. He explained the need to remove the four extra rails for the mesh; Tim agreed. One of the suggestion was to consult with Dr.Chandler about the ergonomics of the cabling (see the second picture attached above).
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| | == Engineering == | | == Engineering == |
Revision as of 16:52, 12 September 2013
September 12, 2013 FDC meeting
Agenda
- Installation preparations [1] (all)
- Engineering (Bill)
- Electronics (Chris, Nick)
- Tests in EEL126 (Beni, Vlad, Lubomir)
- Other
