[BLAST_SHIFTS] Shift summary 09/06/2004 C (17-1)

From: Electronic Log Book (elog@blast05.lns.mit.edu)
Date: Tue Sep 07 2004 - 01:14:30 EDT


Operator: franklin

Mostly smooth shift. Runs 10911-10919 were taken. Lost a little bit of time due to BLAST ROC problem around 19:30. Towards the end of the shift I noticed that the drift spectra for the right sector wire chambers were displaying inefficiency for long drift times, similar to a problem observed ~2 weeks ago. Wire chamber
gas flow was raised.

The target polarization appears to be dropping. Data from the A shift gave mena h*P_z of 0.41 after it remained > 0.5 throughout the weekend. Will switch to unpolarized target tomorrow.



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