Minutes of feedthrough meeting of 24 September, 2001. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Present: Pof, GV, AD, FH, PB, JL, RKK, ML, MGF, ASD, HO *) Milestones - ft 15, the last ECC HEC ft, has been welded and leak checked warm. It will be cold tested this week. - four ft's (ft00 -> ft03, all Standard) are crated and ready to be shipped later this week. *) The shipping summary sheets, itemizing all component serial numbers (obtained from the database) for each feedthrough, have been finished. *) The last of the 27 August batch of pincarriers have finished their cold cycles, with the exception of the 'pseudo-leaker' (showed a leak in the past, but the leak is no longer reproducible) which will undergo five additional cold cycles and leak checks. *) Three 'spare' pincarriers (2 * 7-row + 1 * 8-row) were shipped from Glasseal (arrived 26 Sept). The two 7-row might already be spoken for since two of the 7-rows from the 27 August batch have one pin each which are covered with gold at the glass bead, and the 'pseudo-leaker' might again fail (which would leave us short again of 7-row pincarriers). It is interesting to note that both of the pins with the gold plating are located at the extreme end of a row. An RMA was requested from Peter Tardiff of Glasseal for the first pincarrier found with a gold plated glass bead (the second had not been found yet) but no word has been received back. *) Two flanges (one warm and one cold) are to be welded this week, to be used for ft16 (the FCAL). *) The CERN leak check manifold has been leak checked and is now in the process of being stuffed into the shipping crate built by Dave. It is to shipped sometime next week. Dave Pate (BNL's resident technician at CERN) has informed us that CERN will be providing a 500 l/sec turbo for the manifold. *) Neil is building the ambient flange heaters using the instructions and jig made by Mark. The first to be built will be examined carefully by Mark, PB, and Pof before proceeding with the others. Once the connector for the heater power and temperature probe has finally been specified by BNL (a meeting on this is scheduled at the October LARG week) a test jig will be built to allow testing of the temperature probes and heater wiring. *) The feedthrough protector plates to be installed over the warm flages (bolted to the bolt rings) after installation of the feedthroughs on the cryostat will be made of 12 mm plexiglass. These will be made either by our crew or by Dave Smith. *) The new Toshiba laptop that was to be used at CERN has been swapped with Jan's old IBM 570 Thinkpad, since the IBM doesn't have the same bug as the Toshiba which caused it to crash into blue-screen-of-death mode frequently while communicating through the GPIB card. There might be a Swiss power cord for the IBM in the OPAL office at CERN. *) Greg and John will go on a shopping trip this week to obtain various odds and ends required for the tests at CERN. Tack mats and a shoe brush have been ordered to keep the ft shop clean. Agenda for next week: ^^^^^^^^^^^^^^^^^^^^^ - Milestones - pincarrier stock/status - shipping plans for test equipment - plans for LARG week - plans for the week - AOB