Minutes of feedthrough meeting of 26 March, 2001. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Present: PB, Pof, GV, AD, FH, MLenc, MGF, ML *) Milestones - Fiona's PC, (Higgs, next to the scanner) has been reincarnated as an 866 MHz machine (the original was 133 MHz). - The NI DAQ card has arrived. This is to be used for reading various devices around the cold test station. - The order for the HEC LV cables has been placed. - Handles have been made to replace the jackscrews on the various test leads that are used for the electrical tests. This should significantly speed up and ease the electrical tests, especially those done at the cold test station. *) Bonnie has turned the QA/QC document (now in one single file) over to us for completion and proof reading. Pof has provided updates to those sections concerning electrical tests. PB, GV, and AD will divide up the remaining sections and provide updates. *) During the trip to BNL two weeks ago, we learned that the BNL group has broken three micro-D connectors during testing and installation. This should serve as a reminder that these connectors are very fragile. However, Laurent Serin (Orsay) does not believe that the micro-D connectors are `one-plug-only' devices as BNL now considers them to be. Nonetheless, we will explore various options to reduce the number of plugins for testing both here and at CERN. We have nominally planned to do both resistance and cross talk tests, both before and after welding at CERN, thus requiring four micro-D plugins at CERN for those tests. We will consider eliminating one or more of these tests. *) Michel has contacted Patrick Fassnacht regarding the cable note written last year by Margret, Michel, and Pof, as it has still not been approved. Patrick will email all those concerned with the note who did not reply to earlier requests for feedback. The note will be approved if there are no replies from this latest request. *) We plan to build ft03 this week, welding the pincarriers into the flanges tomorrow (27 March) and cabling the feedthrough during the remainder of the week. Greg will arrange for LN2 to be delivered next week for the cold tests. *) There was some discussion of implementing a web access for the feedthrough database. Greg expressed interest on working on that project. The general web pages for the UVIC ALAS feedthrough project also need to be completed; Jan wishes to continue on that project. *) Tests were conducted last week with 1000 Volt HiPot tests on bare pincarriers. Aaron has built a jig for these tests, and we found that the 1000 Volt HiPot test was very effective at finding microscopic conductive debris at the base of the pins. We still require a better means of viewing the debris in the pincarrier; Mark will order a video camera and TV for that task. The pincarrier HiPot tests will become a standard part of our procedure. *) We will require shipping crates *soon* as we have only one set of cradles left to hold our completed feedthroughs. Mark will find someone to farm the job out to so that they can be build in a timely fashion. *) Pof wrote to Tom Muller to let him know that we could now use more pincarriers (preferably two full sets) so that our production is not once again idled for a prolonged period. Tom responded, but was rather non-committal - "I appreciate your request for the next shipment that you need, and we will have it sent as soon as possible". On a more positive note, Tom is currently pressing HCC to increase the number of Pin Carrier committed machines from the current two to three or four. Agenda for next week: ^^^^^^^^^^^^^^^^^^^^^ - Milestones - Progress on ft03 - video camera - shipping crates - AOB