Minutes of feedthrough meeting of January 11, 2000. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Present: AD, MF, GV PB, PP, MLenc, RK, TH, RL, JL, JVU 1) John Lindner has joined the group for a period of 4 months to work with the electrical testing. 2) FCI/Berg will send 2 more connectors with new springclips. 3) Tools need to be designed and consctructed for insertion and extraction of the vacuum cables, and for checking the pin alignment. 4) Paul Birney is to check the pincarrier freight charges (ie, who is responsible) and also if all the pincarriers that we have been charged for have arrived. 5) We have received the bill for the steel for the 66 warm flanges, and we have also received the chemical analysis for this lot from BNL. 6) The database tables are completed and are being populated. The forms and queries now need to be done. 7) The MS Project results need to be summarized in a few overhead slides - one slide each for initial and final feedthroughs, and one overall summary slide. Shipping date information should also be included. 8) Aboud has received the bimetal pipes and the insertion model. 9) Terry is to talk to Tom Goldbach at SM this week about makeing the TIS samples. 10) Roy reports that Sicom and Ebco work is proceeding well. 11) Several more storage shelf units have been obtained for the lab. 12) Arrangements are to be made with facility management to have the lab cleaned. Care must be taken when cleaning the tops of the duct work at the ceiling, since there is a considerable buildup of dust there. 13) Neil is looking into an improved (lower gate resistance) version of the contact resistance measuring device. He will also obtain quotes for the scanner boards and fanout boards. 14) Roy and Dave Rahm had some conversations about the warm flange heaters. Dave has quotes of one design that would be about US$1000. More holes may need to be drilled in the warm flange to accomodate the final heater design. We will try to keep the BNL and UVIC heater designs identical. 15) Aboud called Roy this morning. Aboud had concerns regarding the flexibility of the bellows for the feedthrough, and whether it would allow free movement of the lower funnel during installation. Apparently there is a 2mm misalignment between the cryostat and the vacuum vessel when both items are warm. The original intention of the Orsay group was to bolt the feedthrough chimney into position before introducing the F/T assembly. This action would restrict movement of the feedthrough and could make the welding very difficult. To overcome this possible situation, the "chimney" will be left unbolted while the feedthrough is welded to the bi-metal joint on the cryostat. This should allow a greater degree of freedom during assembly. Once welded, the chimney will then force the warm end of the F/T into it's correct position. "Sounds great in theory but I'm sure it will still be a difficult task....." (Roy's quote). 16) Labels are required for the HEC pigtail order. These need to be sorted out before the order is placed, since it would be desirable to have the labels placed by Axon. 17) The warm flange gland issue is to be sorted out by the end of this week. 18) The electronics area of the lab needs to be enlarged -- soon! Agenda for next week: ^^^^^^^^^^^^^^^^^^^^^ - milestones - database update - ft -1 update - final gland solution - FCI/Berg order status