Minutes of feedthrough meeting of 2 October, 2000. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Present: GV, Pof, AD, MLef, PB, RKK, MLenc, MGF *) Milestones: - The bellows and funnels that were cleaned at TRIUMF last month have all bee leak checked. Two of the bellows have leaks, and will be returned to BOA. All other bellows and funnels are ok. We now have a stock of 52 leak-tight bellows. - Ten cuff rings arrived. These will be shipped to BOA to complete the bellows order. *) FT01 will be welded on tuesday this week, along with the pincarriers for FT02. *) Margret will order 50 ATI-connector jackscrews (at an exorbitant price) from AXON to replace those which may defective or damaged during installation. AXON would like to receive samples of the malformed micro-D jackscrews. Aaron will provide those to Margret. *) Mark in continuing work on the ambient flange heater. Bob Hackenburg of BNL has informed Mark that BNL will stick to their 25 Ohm heater design (equivalent to our 75 Ohms in parallel) as originally planned. Regarding the heater wires, the insulation on the wires carried by alpha are not halogen free, and hence not useable. The physics electronics shop will be approached for help in wiring the heaters during production, as well as manufacture of the circuit board to hold the fuses. Richard expressed the need to place a piece of kapton in the void in the heater plate below the circuit board to prevent the possibility of shorts. *) The design for the shipping crate needs to be finalized by November so that we don't end up with lots of un-crated feedthroughs lying about in the lab. *) There has been no reply to RKK from Horst Oberlac regarding further information on the HEC LV warm cables that Horst has asked UVIC to provide. *) HCC/Glasseal will go immediately into full production of pincarriers, at a rate (hopefully) of 20 or more pincarriers a week to be shared initially at a ratio of 3 pairs to BNL for each 1 pair to UVIC. The pincarriers are likely to be a mix of CERN low inclusion steel and standard 304-L steel (provided by HCC). The pincarrier serial numbers will reflect the steel type. BNL has recently reported some difficulties welding the 304-L pincarriers into flanges, but feel that this might be due to contamination from nickel and gold getting too close to the top of the weld lip. Agenda for next week: ^^^^^^^^^^^^^^^^^^^^^ - Milestones - Progress on FT1 and plans for FT2 - Heater update - Plans for NSERC site visit - AOB