ISA meeting

Week 32, August 5 1997

Status of the ring: The last week of the ion run was cooling of D^-. From a ring point of view, the run was a success, but cooling was not observed on the Schottky pick-up, although indications for cooling were seen on the bunched beam signal. Earlier, we had been running D⁺ and seen cooling, but with D^-, the lifetime is shorter, which makes the experiment more difficult. We will probably return to this experiment in the next ion run.

Yesterday, Electron Run 2/97 started: The microtron is running well. It remains to be seen if the stability is improved as compared to the last run.

We currently have some RF problems. The cavity seems to be OK, but the transmitter is not OK. TK is working hard to fix things, and we hope to be able to start perhaps later today. Yesterday, we had >2 mA in the beam using fast injection. This is comparable to what we have had earlier under similar conditions, so we are optimistic!

The Undulator Beamline is currently being pumped, but has not been baked. The pre-mirror chamber is installed. As soon as it is ready, FF will check the monochromator and undulator radiation in more detail. The beamline should be ready by mid-September, at which time the chamber which is being used at Daresbury right now, will also be here.

The building modifications are finished: The new opening to the new hall has been made, and the corner of the the 5MeV shielding has been cut off, yielding much better access at corner 4. The door will be mounted in the opening in a few weeks. Until then, the opening is blocked with concrete blocks.

FZK/Karlsruhe has ordered a 500 MeV booster for the ANKA electron storage ring from Danfysik. The order includes a 50 MeV microtron and a 500 MeV booster-synchrotron with associated transfer beamlines. Except for the RF-system, control system and vacuum pumps, everything will be delivered by Danfysik. ISA is involved in this project as consultants, for which Danfysik will pay an amount to ISA. The amount has not been agreed upon yet.

The position as biophysicist will not be filled soon. The successful applicant has withdrawn his application, and the position will have to posted again.

Jan van Elp is leaving ISA on September 1^st. JvE's new position is in Japan.

Karsten Telling Nielsen is leaving us in order to work at CERN for 6 months.

The new control system has been put through a stress test by TW and KTN, involving 11 computers running a total of 140 clients, each with 8 parameters updated 4 times/sec. This is much more than we will ever use, but the system passed the test without problems.

5/8 1997 SPM+NH