Difference between revisions of "Minutes-9-26-2013"

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(Created page with "September 26, 2013 FDC meeting = Agenda = # Installation preparations [http://www.jlab.org/Hall-D/detector/fdc/installation/FDC_installation.pdf] (all) # Engineering (Bill) # El...")
 
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#* New F1TDC (Beni)
 
#* New F1TDC (Beni)
 
# Other
 
# Other
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= Minutes =
 
= Minutes =
  
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Participants: Bill, Dave, Chris, Nick, Simon, Vlad, Beni, Glenn, and Lubomir.
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Participants: Eugene, Fernando, Dave, Chris, Nick, Simon, Vlad, Beni, Glenn, and Lubomir.
  
 
== Installation preparations ==
 
== Installation preparations ==
  
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- The four rails inside BCAL that will support the FDC, CDC, and the mesh were installed, but not adjusted. Survey of the BCAL position has been done, but we haven't seen the results yet. Next, depending on the BCAL position, the rails have to be aligned, that will take several days survey people working there. Bill: if they can't be adjusted to the nominal distance, we will have to re-adjust the distance between the rails on the carts. It will not be easy to adjust the rails on the cart where the FDC is, but Bill says it's doable.
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- Work on the platform in the Hall continues. The opening between the cart rails is not so wide, it will be difficult to cable the bottom of the FDC. Eugene: can't we lift the FDC during the cabling then put it back on rails? Will wait for Bill to answer, but one likely problem is the surveying that has to be done without cables. It was not clear how so many FDC cables will run below the platform perpendicular to the many trays there below the racks: the sides of these cable trays are very close to the platform.  
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- The techs will start soon the installation of the FDC platform. The space between the two rails on the platform (holding the carts) is very small, it will be very difficult to work at the bottom side of the packages. The racks have not been installed yet, first cable holes have to be cut. The electronics will not be installed until all the dirty work is finished.
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- We discussed a lot if the BCAL cable and infrastructure installation will interfere with the FDC installation. Bill: certainly prior to the FDC installation the two cooling rings (manifolds) have to be installed; the whole cooling system have to be tested, but what about the signal cables? It's not clear if the Nitrogen cooling, cables for the control and monitoring system also have to be installed in advance. Not all of these subsystems are ready, some have not been decided yet. Beni proposed to ask Elton to explain their plans on the next FDC meeting so that we can synchronize our activities.
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- Gas system: Scott started some work in the gas room: installing the rack and the holder for the mixture volume; the fridge is ready. Cooling system: Floyd Martin is working on the connection to the chill water, it will be done with plastic tubes (Bill).  
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- Fernando wanted to have a list of people that will work on the FDC cabling so that they can be trained in advance. Vlad, Lubomir, and Beni are the first in the cable list. Casey and Tina were assumed, as well, but according to Fernando they will be busy with Tom for at least the next two month. There will be also people from FEL helping with the cabling.  
  
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- Beni will start working on a mini DAQ to be used to test the cables when connecting them to the detector. We will need one fADC and one F1TDC module as they are in two VXS crates. Will trigger from a generator and just look for a noise. 
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== Engineering ==
 
== Engineering ==

Revision as of 18:20, 27 September 2013

September 26, 2013 FDC meeting

Agenda

  1. Installation preparations [1] (all)
  2. Engineering (Bill)
  3. Electronics (Chris, Nick)
  4. Tests in EEL126
    • New F1TDC (Beni)
  5. Other

Minutes

Participants: Eugene, Fernando, Dave, Chris, Nick, Simon, Vlad, Beni, Glenn, and Lubomir.

Installation preparations

- Work on the platform in the Hall continues. The opening between the cart rails is not so wide, it will be difficult to cable the bottom of the FDC. Eugene: can't we lift the FDC during the cabling then put it back on rails? Will wait for Bill to answer, but one likely problem is the surveying that has to be done without cables. It was not clear how so many FDC cables will run below the platform perpendicular to the many trays there below the racks: the sides of these cable trays are very close to the platform.

- Fernando wanted to have a list of people that will work on the FDC cabling so that they can be trained in advance. Vlad, Lubomir, and Beni are the first in the cable list. Casey and Tina were assumed, as well, but according to Fernando they will be busy with Tom for at least the next two month. There will be also people from FEL helping with the cabling.


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