[BLAST_SHIFTS] Shift summary 02/19/2004 B (4-8)

From: Electronic Log Book (elog@blast05.lns.mit.edu)
Date: Thu Feb 19 2004 - 07:49:56 EST


Operators: clasie clasie nikolas

Deuterium data taking most of this 4hour shift.
CCR had asked for "same conditions" as last night, including H2 target and 2-state flipping, in order to study an effect relating to cycling the quads of the snakes. Didnt sound like "Blast people" had any prior knowledge of this "need", nor did it sound necessary at the time, having just tuned D2 n all...
We yielded anyway.
Assuming Genya's tuning from earlier Wednesday was reflected in the ABS setpoints, we set D2 back as target, got plasma and set the same three state flipping sequence as before the change.
WC tripped like mad as stated in the logbook.
Lifetimes were bad to really bad (14min to 8min at peak current)
Phys 0 rates up to 1KHz at beginning of fill. See log.
Took runs 4873-4881 with l2trig. Data is crunching.



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