Present: Chris Allgower, Andy Bacher, Hermann Nann, Paul Pancella, Tom Rinckel, Sitaram Shastry, Hal Spinka
Meeting came to order at 3:08 pm.
The meeting began with some fairly informal discussion of the schedule for the near future. Mapping of the septum magnet can begin on December 18. However, there is enough installation work after that (alignment of the magnets is done first without vacuum cans, then channel must move under the crane for installation of cans) that the channel cannot be ready until sometime early to mid-February. Therefore our target is to be ready to test with beam by the end of February, 2001.
It is now believed that the liquid hydrogen target may be tested in situ during the first week of February. We will need to keep track of the tagger group's schedule to avoid conflicts in the T-region.
It is assumed that the scheduling committee will decide around early January how to allocate beam between the two groups. Therefore we should try to put together a sensible plan for a test run of the channel, and have it ready before the holidays. Bacher and Pancella will try to make a draft for discussion at the next meeting.
REVISED JOB LIST
We next took some time to consider a list of jobs modified from Stephenson's list of late September. Some new jobs were added to replace those that are finished, and responsible persons were named for each. {The resulting list has been emailed separately to the group.} It was noted that Pickar will not complete his report on Lead glass simulations, or do any new ones, before the New Year, nor will he be able to visit IUCF in that time.
VACUUM CANS FOR CHANNEL
The time has come to finally decide if quad vacuum chambers should be round or square in cross section. Is the added aperture space of the square (diamond) configuration worth the extra trouble to fabricate and the increased likelihood of leaks? EJS will attempt to make a good estimate of how much phase space is actually affected before the next meeting.
ELECTRONICS
Allgower reported finding a programmable delay box in the lab that will fill our need. Ed reports that the request to borrow modules from BNL is heading for approval. We should be ready to arrange shipment of those modules as soon as approval is final. Steve Wender reported to Ed that the LANL electronics pool is in very poor shape. We may still make a request, but it will be some time before they are ready to process it. Chris is still checking, but believes FERA is our only outstanding need. He will write up a request for Los Alamos. Spinka will inquire at Fermilab on the availability of the LeCroy 4300b module.
Chris also has been looking at timing for the channel test, taking into account predicted particle times of flight. In the final setup, the lead glass analog signals may need some more delay to deal with the 3He test reaction. Five of the six delay boxes are nearly finished, and construction of the patch panels has now begun.
LEAD GLASS
Five more of the ANL counters have been fixed, bringing the total to 84 of this type which have passed the test. John Vanderwerp may be asked to rewire some of the bases which are set up for the wrong gain. He has time now (according to Rinckel) so we should make use of him if at all possible. PVP will sketch the first generation of scintillation counters so that he can begin constructing these as soon as the materials are in house.
It was decided that there should be a central repository for important CE78 reports and other documents. That repository could be in PVP's temporary office (rm 154) which has shelf and file drawer space available. Andy and Ed will look into organizing and transporting what already exists.
The meeting adjourned at about 4:30 pm.