Present: Chris Allgower, Andy Bacher, Hermann Nann, Paul Pancella, Ed Stephenson
The meeting came to order at 3:12 pm.
SEPTUM MAGNET
The newly-repaired magnet was powered up last week and seems to be in working order. Mapping of the exit end in plane was completed (or nearly so) before the Cooler was closed for the current accelerator physics run. The plan is to do some mapping out of plane on Monday, then rotate to look at the entrance end. Rinckel distributed some data in absentia on balancing the upper and lower power supplies. Pancella showed a trace of the half-field edge based on data Tom left. This boundary appeared much straighter than the one at the entrance which was mapped before the coil failure.
It was reported that one or both of the power supplies have tripped during mapping with no apparent ill effects. It is believed that as much as 1300 amps of current have been sustained. Some concern for the frequency of these trips was expressed.
TARGET BOX
The target box design remains close to completion. Doskow is now incorporating some relatively minor changes suggested by Tim Clarke who will be doing the welding in house. There was no firm information available on when the parts will be sent out for machining.
ELECTRONICS
Allgower reported that we now have approximately all of the electronics installed and cabled up, including a circuit for the luminosity monitoring detectors. Timing still needs to be worked on. Rudimentary software is in place for communicating with CAMAC modules, including Jorway timer and High Voltage supplies.
Sufficient SHV cable is in hand. The 130 ns BNC cables are long enough (84 ft.) for the run to the lead glass, but we need to make about 100 more of these. Otherwise we have enough signal cables also.
Chris inquired whether it might be a good idea to purchase a spare high-powered CAMAC crate for the Feras. Those present were in favor of the proposal.
OTHER
Stephenson has started sorting out the expected distribution of our double radiative capture background with Gardestig. Anders may also be interested in attempting a calculation of the primary dd->alpha pi0 reaction, perhaps involving a local discussion group meeting regularly. Stay tuned for more details. Anyone interested may obtain a copy of his thesis from Anders.
The meeting adjourned at about 4:10 pm.