ISA meeting

Status of the ring: The Mg-run for the laser group ended yesterday (Monday) morning.

The first days, the laser group has problems with horizontal beam oscillations. Since the frequency was 50 Hz, they were clearly related to the mains, possibly via ripple on a supply somewhere.

Many possibilities for the error have been considered, but the cause has not been found. Suggestions are welcome!

The laser group finally solved the problem by introducing a 50 Hz AC voltage of 5-7 V on the extraction kicker. We must find the cause of this before the next ion run.

After the beam became stable, the run was successful.

The 3 week shutdown period started yesterday morning.

The RF cavity has been changed, and is now being baked.

The injection beamline has been taken down, and the straight tube which will be used while the original beamline is being cleaned, is ready to be mounted.

The undulator chamber has been deformed during baking, but once this is corrected, it will be mounted.

The visitor platform is being mounted. We hope this will be finished in the beginning of next week, such that we can start running electrons.

The parts for the undulator beamline are ready. They will be mounted once work on the ring is finished.

There will be NO POWER for the beamlines for a few days this or early next week. This is due to some new installations which have to be made.

The relevant persons will be notified by email when the time for the shutdown is known.

The budget for this year is now being made, and persons responsible for an account are asked to fill in a budget form specifying wishes for equipment etc. The normal cost of running the ring is not to be included in this. Specify just known, large (i.e. expensive) pieces of equipment, such as valves, supplies, pumps etc.

TW is testing the new diagnostic and control systems this week. He plans to have parts of the new system running in parallel with the old one already for the coming run.

The X-Ray microscope needs an extension of the beamline to the camera in order to get a higher resolution. This is necessary to test some zoneplates from the microscopy group at Stony Brook. These measurements can not be performed anywhere else, but RM can do it with a relatively small change to his setup.

28/1 1997 NH + SPM