[BLAST_SHIFTS] Shift summary 05/02/2004 D (12-16)

From: Electronic Log Book (elog@blast05.lns.mit.edu)
Date: Sun May 02 2004 - 17:05:34 EDT


Operators: akdogan ---- ----

Took empty target data smoothly.
Trigger rate (TSL2A) is about 0.75 Hz/mA.
Ligit seems to be low: 1.1-1.3e-7
Runs taken: 7087-7091

--- o ---

Meanwhile, some more time was devoted to find the back
scattered photon position around calorimeter (details
are documented in the e-log). The early trials of moving
the hodoscope to find the position partially failed.
The current false asymmetry is substantial - we're
taking empty-target data, thus not critical. The reason
needs to be investigated; a) hodoscope frame may be blocking
the beam un-evenly, b) laser beam position is way too off.



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