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| − | Participants: Eugene, Bill,Dave, Chris, Simon, Fernando, Beni, and Lubomir. | + | Participants: Fernando, Bill, Eugene, Glenn, Tom, Tim, Chris, Simon, Nick, Vlad, Beni, and Lubomir. Long meeting discussing the survey/alignments most of the time. |
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| − | == Installation preparations == | + | == Installation == |
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| − | - Current status of the FDC related stuff in the Hall shown with pictures linked above. Lubomir and Dave discussed with Tom today the work schedule in the hall. As of today, the plan is to move the FDC to the hall next week, earliest on Tuesday (Oct. 22). By the end of the day they will finish with BCAL cabling and the cooling rings will be installed tomorrow. On Monday all the platform will be cleaned and the survey people will be aligning the top and bottom rails on the first cart and inside BCAL. It turned out the top part of the cart had to be shifted to match the top rail inside BCAL, but the side rails have not been touched. Additional plates on the bottom of all the carts had to be installed to prevent the carts from tilting. By some reasons the top and bottom rails inside BCAL have been replaced by longer once reaching the downstream end of the magnet, but they are not needed that long? (Bill will check this). | + | - The results from the survey of the FDC on the floor in the Hall are attached (still preliminary). The main conclusions: flatness of all the packages is OK (max deviation |
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| − | - The gas system panel will be installed on the platform at the right side of the magnet at the downstream end. 1/2" tube will go to the FDC and CDC from there. The gas controls will be in a rack at the floor at the left-upstream side of the magnet (to avoid noise in the electronics at the right racks). The cooling system will be at the downstream side of the magnet on the floor. We discussed if the cooling system and the solenoid valves in the gas panel will operate without problems in ~50 gauss magnetic field. Bill will look at this and if possible wants to test them with a field. At the beginning we will use Nitrogen from a dewar to flush the chambers, but by November 11th we want to have at least a temporary gas system with Ar and CO2 to start testing with HV.
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| − | Casey is working on the chilled water piping needed by November 4th when we will start testing the LV cables.
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| − | - As of now the plan is to move FDC middle of next week. Then (for one week at least) there will be a survey and also dry runs of moving FDC in and out of the magnet to make sure the rails are OK and it returns to the same position. Approximately on November 4th we will start connecting and testing the LV cables. Fernando: by that time all the LV, HV and TDC crates will be installed in the racks. One week later, Nov.11, we plan to start connecting the signal cables. At that time we will need the mini DAQ to test the cable connections and Beni is working on this. The mini-DAQ will be placed at the back wall near the pair-spectrometer. For that Beni needs a crate with fADC and TDC with self-triggering feature. Fernando: it's possible but right now Cody has the full crate testing as a priority.
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| | == Engineering == | | == Engineering == |
Revision as of 16:23, 31 October 2013
October 31, 2013 FDC meeting
Agenda
- Installation [1]
- Engineering (Bill)
- Electronics (Chris, Nick)
- Tests in EEL126 FDC E-log (Beni)
- Other
