[BLAST_SHIFTS] Shift summary 03/13/2005 B (9-17)

From: Electronic Log Book (elog@blast05.lns.mit.edu)
Date: Sun Mar 13 2005 - 17:00:50 EST


Operator: vziskin

The shift started with 100 mA injected beam. The polarization appears to remain low as noted by Michael. At 14:30 we went to a higher injection current (150 mA) per Genya's agreement. The target holder temperature sensors are show high temperature and currently off scale. At the same time the cold head and the cell temperatures show little difference. When we went to higher current the temperature PID control went berserk and I turned it off since it really does not do anything. The ligit, which was dropping slowly before the injection current increase, has jumped and once in a while shows large vacuum excursions. However, the beam appears to be well behaved with low BQMs, scaler rates and high lifetime.



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