ISA meeting

Week 2, Jan. 12, 1999.

Status of the ring: The D^- experiment (P. Balling) ended on the night between Sunday and Monday. A width of the Feshbach resonance significantly smaller than seen previously was observed. It was, however, difficult to obtain a good overlap with the laser and a simultaneous well-cooled beam. Also the laser did not quite deliver the optimal beam. We will presumably have to return to this experiment in a later run. Next experiment is HD⁺, O⁺ and H₂O⁺ for LHA et al.

The status of ELISA was presented last Friday. Everything behaves nicely for small circulating currents (< a few nA), and lifetimes up to around one minute has been seen. For intense beams, a current-dependent loss mechanism is observed. The cause of these losses is unknown at present, but remedies will be searched for, in order to make future high-current operation possible.

The ventilation system in the ASTRID hall is out of order, but is being repaired.

Karsten Rasmussen is going of leave from February 1^st. His duties will be divided between several persons; these changes will be presented in the next ISA meeting report.
Robin Medenwaldt is leaving us on March 1^st for another job. Good luck, Robin.

12/1 1999 spm