Minutes Of Feedthrough Meeting November 1, 1999

Present:  RL/PP/PB/TH/GV/MR/MLenck/RK

1. Milestones
   -  no steel  TH is chasing it through purchasing.
   -  no gland decison
   -  Certification of Welding:
       - Roy met with Tom at Specific
             - Weld coupons+PQS(?) needed
             - Specific is preparing a quote
                 - 304L SS
                 - Tensile and Notch test
       - It will take a couple of weeks before we can get stuff ready to
send to TIS

   -   Production machining:
       - Roy visited Sicom and EBCO
            - Both companies looked good and understood the problems
            - will split job to get best price.
                - Sicom will do Bolt ring, funnel base,seal ring,cuff
ring, and lower funnel tube
                      - PO signed Nov. 2
                - EBCO will do cold and warm flanges
                      - PO will go out soon
    - Received pin carriers have all been cold cycled 3 times and vac tested
    - three more pin carriers arrived Nov. 1
         - will be vac and cold tested

2. Bellows
   Roy called BOA
    - 1 out of 5 bellows leaks
       - BOA is examing this problem very carefully.
       - We proposed to tell BOA we can take the leaky one for the insertion
test module.
***    - RFQ will be delayed 2 weeks while we check out bellows after arrival
and discuss the leak problem with BOA

3. Cables
   - FCI cables should arrive this week. RKK will keep an eye on them.
   - Axon now has a West Canada sales rep that we have to work with.
       -RFQ is being prepared for LV vac, LV pigtail and T51 pigtails.
         - Ask for x soon and y cables later. We need to make sure they are
ok but do not need them all for some time. 
   - MF is searching for a supplier for Preci-dip connectors to test hec
pigtails.

4. Notes from LARG meeting
   - Cryostat 3 months late
   - Sicom will machine pipe for Aboud. Roy will send him a quote and ask
him to raise a purchase order. We will have machining done and hold it until
we get a PO.
   - Kane and TIS have gone another round! How do we get an agreement?
        - TH will contact TIS when we have Canadian welding documentation.
   - Feedthrough installation
        - TH worried about burning pigtails during installation of FT
into the cryostat.

NB!              TH will email Aboud and Pierre suggesting that a water 
cooled jacket be inserted into the funnel during welding.

   - Aboud wants fake pigtails in the insertion module
   - Aboud wants to be able to pump out the funnel assembly
   - BNL will not do a precision measurement of the vac cable resistances.
The reason is that pigtail resisitances will dominate. This is not in fact
correct and MF is writing up a calculation that shows this.
   - Heating resistors
       - still many questions about how to do this. I think we will need to
do our own research but it can wait until the prototype -1, the insertion
module and the TIS funnel is completed.

5. Mark is working on a mark-2 design for the cable restraint.

6. Next Agenda
    - Bellows status
    - Steel order status
    - FCI cables