MINUTES OF THE COOLER-CSB GROUP MEETING

December 19, 2001

Present: Chris Allgower, Andy Bacher, John Olmsted, Paul Pancella, and Ed Stephenson

Report on the Program Advisory Committee meeting

The final decisions from the Program Advisory Committee are favorable for CSB. The recommendation is that we proceed with the experiment for each funding level. It now appears that we will have to wait until mid-January before we know for sure what our funding will be. At the lower funding levels, all experiments would have to made do with less total running time. For CSB, this would mean less production looking for d+d -> 4He+pi0 events. In the past, we have achieved our commissioning goals with less shifts than we had at first anticipated.

2002 Schedule

The running for 2002 will fall into three periods:

• January through March 18.
• Mid-May through the end of July.
• October until Thanksgiving, providing there are sufficient funds from the NSF.

The running in January will start with proton beam. Pintex will look at pion production until January 14. Then there will be short access to finish CSB setup tasks, and CSB will run until January 28. Following that, operation will switch to polarized deuterons.

Various options were suggested for the deuteron running until March 18. One significant issue is the IU spring break the week of March 11. Tom Rinckel, and perhaps others associated with the CSB effort, will be out of town. It was deemed important to start running before people leave March 8.

Summer Visitors

Paul Pancella plans to be at IUCF this summer during the second long Cooler running period. He thinks Western Michigan will be done by late April.

Pre-run jobs list

The remaining jobs before we run:

• Install the luminosity monitor, silicon collimator, connect to data acquisition and check. It is important to make sure that the scintillators are well shielded from the 6-degree magnet field. When putting in the silicon, make sure that the turbopump is running so any noise pickup will be apparent. Check the polarity of the scintillator high voltage.
• Install delta-E(1). It was decided to install the 4-detector delta-E arrangement. A suitable frame needs to be made. After checking with Vanderwerp, none of these scintillators has been wrapped. Only two have PMTs glued.
• Install all MWPC detectors, cable, and check with source.
• Fix problems with Pb-glass timing readout.
• Install a remote reboot for the VME crate.
• Test the exit window for the 6-degree magnet, then install.
• Complete work on the target region.
• Test magnets for the channel.
• Verify that channel trigger wiring is OK.
• Set up pulser for 3He timing.
• Verify start-stop timing for all readouts.
• Check output widths on ECL discriminators for Pb-glass.
• Install modified Bertan MWPC supplies.
• Look at FERA #16 for problems as pedestals are noisy.

Software

There was much discussion of the software. Essentially we need to go through and make sure that everything is in place and documented. There are likely to be a number of things to check and change. Run notes will be put into a ring binder for use during the run.

Part of the discussion concerned triggers. Now there are four:

• Channel events (with or without Pb-glass coincidence).
• Luminosity.
• Cosmic rays.
• Scalers.