Minutes of feedthrough meeting of 7 October, 2002.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Present: Pof, PB, FH, AD, ML

*) Milestones:

	- Twelve feedthroughs ft37, ft39-ft48, and ft50 were
	  shipped to CERN on Friday 4 October.  This leaves
	  four feedthroughs remaining at UVIC plus one
	  feedthrough to be built.

	- ft52 and ft54 are ready to be closed up in their coffins.

*) Richard sent the following detailed report from CERN 
   on Wednesday 2 October:

     Dear Michel, Paul, Paul, Chris,

     Both Horst and Pierre Pailler dropped by to chat today. Infact they
     chatted from 5:00 until almost 7:00.

     The EEC cold vessel will be completely removed from the warm vessel. A new
     stopper with PEEK and 30% carbon loading is being investigated by Pierre.
     The permaglide remains as a backup system. Tests on PEEK show some creep
     that stops after a day or so.

     A stainless steel plate will be glued and screwed onto the spots where the
     stoppers rub. This will stop the stoppers from gouging the aluminium.

     The rails that HEC etc sit on in the cold vessel will be re-equiped with
     permaglide and separately cold tested.

     If all goes well, the cryostat will be dismounted on Thursday Oct 10.
     Feedthrough installation will start at the beginning of December and end
     at the end of January with a 2 week break for Christmas.

     There will be a pressure test in March. ECC will not be recold tested, ECA
     will be cold tested in January. SIMIC has had a broken milling machine
     that has now been repaired several times. They claim it really is fixed
     now.

     Cheers,
     Richard

*) Six T48 pigtail cables (pt6468, pt6470, pt6539, pt6541, pt6544, 
   and pt6550) have been shipped to us from ORSAY on 27 September.
   Two of these cables are required to build the last feedthrough
   ft53.  These cables will all be put through a more rigorous
   set of tests (64x64 cross talk plus precision resistance) since
   some of the test data taken at ORSAY and AXON was erroneous.

*) Fiona has solved the MS Access bug which was responsible for
   putting erroneous data in the feedthrough 'final reports'.
   Final reports for all effected feedthroughs will be printed
   and brought to CERN to replace those already at CERN.

*) Communications continue between us and Claude Eder concerning
   the polarity of the power supplies for the flange heaters.
   Apparently the power supplies are grounded, but it remains
   unclear which wire is 'hot' and which is 'ground'.

*) Neil is working on two devices, one to be attached to the 
   micro-D of a pigtail and the other to the baseplane end of 
   a warm cable.  These devices are to be attached prior to the
   installation of a warm cable on the warm flange, and are
   designed to light a greed led if all pins are in electrical
   contact with their respective sockets, or a red led if any
   pin comes in contact with ground.  This should provide
   immediate feedback, before any serious damage is done, on 
   whether or not the warm cable is being connected without 
   bending pins.

*) Fiona and pof will travel to CERN from 8 - 29 October to work
   on feedthrough reception tests (and also to keep an eye on
   ECC repair progress...).

Agenda for next week (Paul B to chair)
^^^^^^^^^^^^^^^^^^^^
- Milestones
- Plans for the week
- AOB