Minutes of feedthrough meeting of 25 September, 2000.
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Present: GV, Pof, AD, MLef, PB, RKK, MLenc

*) Milestones:

	- The batch of 300 Vacuum Cables that arrived on 31 Aug
	  have been fully tested, and 288 were paid for.  Twelve 
	  of the 300 failed the tests and have been returned to FCI:

		6 cables had opens or high resistance (> 2 Ohms)
		1 cable had a short
		1 cable had a defective spring clip
		4 cables had defective connector cases
			(case width over tolerance)

	  A few of the cables have defective or missing jackscrews
	  and cannot be tested until replacement jackscrews are
	  supplied.  One cable from the 14 Aug batch was also
	  returned.  That cable had one open and also an over
	  tolerance case width.

	- With 600 of the 1750 Vacuum cables in stock, 32 calibration
	  pairs have been identified, with a resistance band requirement
	  of 0.040 Ohms.  This is tighter than is actually required.
	  For the entire project, we would require 53 pairs for 55 
	  feedthroughs.

	- 36 Bellows and 11 Funnels were cleaned with with ultrasonic
   	  bath at TRIUMF.  We now have a total of 54 Bellows and 15 Funnels
   	  that have been cleaned, plus a large supply of warm and cold flanges.
   	  One more three-day trip to TRIUMF may be all that is required to
   	  finish all the cleaning for the entire project.

	- All 60 heater plates and 240 bellows support bars have arrived
	  from Southern Cross.

	- TIS has given us a green light to proceed with the welds
	  on our production feedthroughs.  If we drop one on the
	  floor, we'll surrender it over to TIS.  Otherwise we will
	  provide them with one more weld sample; details from Terry
	  when he returns from Spain.

	- It was decided during the LARG week at CERN that the `HEC
	  baseplane problem' will be solved at the harness A end.
	  This means that the endcap feedthroughs will be completely
	  unaffected (aside perhaps from an additional tax...) so we 
	  will continue with building only four types of feedthroughs 
	  with the existing HEC pigtails.

*) Margret communicated to Allain Gonidec our request for use
   of a Tektronix 2440 digital scope with GPIB board at CERN, 
   detailed information on the leak checker that will be provided
   for us, and the use of a bag sealer at CERN.  

*) Mark summarizes his conversations regarding the Ambient Flange
   Heater during LARG week as follows:

	I have met with Fritz Szoncso and Marc Tavlet to discuss some
	heater issues.  Fritz is mainly electrical safety, and Marc
	concerned with material safety.  The prototype heater was shown
	to both gents, the basic parameters given (temp, amperage etc.)
	and comments and suggestions were given.

	Meeting with Fritz: Fritz was not at all worried about the
	heater design providing we keep within a rule of thumb
	parameter with regards to insulation temperature being kept
	below 70 C.  This number however could be "pushed" if required,
	but it would be smart to adhere to this number anyway.

	Meeting with Marc: Marc was shown a plot that showed
	radioactive exposure in the regions where the heaters would be
	located... He was not too concerned provided we use wire that
	is non-halogenated, and that we don't use insulation materials
	that are on the no no list (PVC, teflon ...).

	HEC meeting: There was no comments with regards to the heater
	design or control of the heater during the meeting.  There was a
	chap from cryostat electronics that took some interest.  I will
	correspond with this person in the future to feel out some
	criteria for the heater control.

*) Paul Birney is to take over Terry's role as the liaison with TIS
   regarding welding issues.  

*) PB will ask Allain Gonidec for his recomendation on whether or
   not we should be re leak testing the VCR T-pieces here at UVIC,
   since further testing seems only to increase the chance of
   introducing leaks on the VCR seal face.

*) Michel received a call from Tom Muller regarding the pincarriers.
   Negotiations are ongoing for the pincarrier delivery schedule and
   the payment to be made to HCC/Glasseal for the failed units.  
   It has (finally) been decided to abandon the use of low inclusion
   steel for the pincarriers and to use standard 304L steel instead,
   which will be provided by HCC/Glasseal.  Note that the pincarrier
   numbers provided to Margret for the Sept 00 LARG week talk were
   wrong.  We are expecting a total fo 275 (not 225) of each type
   of pincarrier.  Someone (initials PP) can't divide 550 by 2!

*) The question of whether or not UVIC provides the RF seal and
   rubber O-rings to make the seal to the cryostat is still under
   negotiation, however Michel has made it clear that UVIC should 
   NOT be responsible for providing these items.

Agenda for next week:
^^^^^^^^^^^^^^^^^^^^^
- Milestones
- Report on Bellows and Funnel tests
- Status of FT1
- FT building schedule
- Heater update
- Shipping crates
- AOB