After the ABS turbo controller failed last night, it was elected to
open the hall today for maintenance. During the day:
- Snakes filled
- BRP aligned
- Brem monitor set up to help CCR tune for Compton
- Unpol gas feed system set up again (not clear whether this is finished
yet)
Run plan for tonight:
- Lock up Hall
- Until midnight, run empty target with injection tune (not normal
storage tune) to get good measurement of the beam polarization.
Restrict current to 50 mA during any tuning.
-At midnight, start warming up cell. Target vacuum is still bad and we
expect this will improve it. This will prohibit any running of beam.
Owl shift is cancelled.
-Start cooling cell in morning
-Expect replacement controller for ABS turbo to arrive at 10:00 tomorrow
morning.
-Resume running on polarized deuterium
-- ********************************************************************** Wilbur A. Franklin * Phone: 617-253-9518 Bates Linear Accelerator Center * FAX: 617-253-9599 P.O. Box 846 * Email: wafrankl@mit.edu Middleton, MA 01949 * **********************************************************************
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