Minutes of feedthrough meeting of 29 April, 2002.
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Present: Pof, FH, PB, AD, WW, RKK, ML

*) Milestones:

	- The last cold cycle / leak checks of the pincarriers
	  have been completed.  We have approximately nine
	  spares of each type which have been tested, plus
	  others still on the shelf which will not be tested
	  unless required.

	- ft37 passed it's cold tests.

	- ft38 final electrical tests were completed.

	- ft39 showed a 7.5 10^-9 mbar-l/s leak at ambient
	  temperature in one of the pincarriers at the cold
	  flange.  This leak presumably opened up during the
	  weld of the cold flange to funnel or cuff ring.
	  ft39 will be reopened to salvage the vacuum and 
	  pigtail cables, warm flange, and bellows.  The
	  cold flange and funnel will no longer be useable 
	  for feedthroughs.  Care must be taken in grinding
	  open the funnel to prevent any metal gindings to
	  contaminate the pigtail cables.  

	- ft40 has been cabled and is ready to weld.

	- ft41 cabling has started.

*) The wires of the RTD's that we have purchased to monitor 
   the temperature on the ambient flange heaters are not
   compatible with the RJ11 connectors they are to be connected
   with; the crimping of the RJ11's onto the RTD wires simply
   break off the wires.  Neil (UVIC electronics shop) has
   found that a 24 AWG solid (not stranded) wire appears to
   give the most reliable contact.  Neil and pof are presently
   looking for a supplier of 24 AWG solid wire with either
   Kapton or PEEK insulation.  The Kapton or PEEK insulation is
   desired not only for the radiation hardness but also for
   their smaller thicknesses; 24 AWG wire with "standard" insulation
   will not fit into the RJ11.

*) Aboud has requested that UVIC supply one person for assisting
   him in "feedthrough installation preparatory work" starting 
   24 June.  We will supply that person for a period of two weeks,
   but it must be understood by Aboud that this request cannot be
   open ended, due to our limited travel funds.  For assisting
   Aboud once feedthrough installation actually starts, we will
   be sending Fiona to CERN for a period of six to eight weeks.
   Wendy and pof will also be at CERN for the first two of those
   weeks.

Agenda for next week
^^^^^^^^^^^^^^^^^^^^
- Milestones
- progress on ambient flange heaters
- progress on ft39
- Plans for the week
- AOB