ISA meeting

Week 18, May 2, 2000.

Status of the ring: Electron Run 1/00 ended Monday morning. It was supposed to end Tuesday morning, but a faulty switch in the dipole supply forced it to end a day early. During the past week, we have had some other problems, mainly with the RF system and with two leaks in the cooling water system. The RF-system will be looked at during the coming ion run, and the water hoses will gradually be replaced. The leaking ones were both of the original type, which has been in operation for about 10 years now.
The change to ion operation has now started, and baking will begin this week.
Ion run 1/00 will start in week 20/00 (May 15^th).

The new correction dipole supplies are now being installed. The new model is much easier to service, and designed to avoid the frequent cooling water problems we experienced with the old type.

Ion run 1/00 will officially start in 2 weeks, but already next week, some tests will be made of injecting a beam from the EBIS into ASTRID. The EBIS is now being set up to run Li²⁺, which will be charge exchanged to Li^- and injected into ASTRID.

ELISA is running C₆₀⁺ and other carbon clusters. It runs very well, and a laser is used to induce decay of clusters heated by the laser beam. Later, a gas will be introduced into ELISA in order to study collision induced decay cross sections.

The UV1 monochromator and beamline are to a large extent commissioned. Some minor deficiencies will be take care of during the ion run, such that CD experiments can be made in the next electron run.

The next electron run is being prepared already, and in a few weeks a list of changes to be made on the ring and the beamlines will be compiled. If you have wishes for additions or modifications, please bring them up now.

2/5 2000 / +