Operator: kohlm
Taking D2 ABS data since yesterday night 7pm.
Polarized D2 runs 13475-13479 13481-13487, all crunching.
BQMs are pretty high although wch rate is ok. CCR has tuned before I
arrived. Little improvement reported: T/L/B/R=500/150/280/160, wch
L/R=30/47. Slits at L/R/T/B=-5/11/7.5/-0.7
Most forward scintillators see high rates, too.
Data quality of analyzed events is very good nevertheless, clean triangular
z-distributions. Of the reconstructed events, the background is mostly at
forward angles <30 degrees and low momentum <150MeV/c, with positive
charge.
Is the beam quality related to target full vs. target empty? Is the target thicker
than we thought?
Suggest to try empty running for a test.
Started autocruncher at 05:20am. Run 13475 is 50% crunched after 4 hours on
a bud; on the spuds it takes 30% longer. So, expect first results on polarization
in the course of the afternoon.
Changed blastrc in blast account such that Electronics.map is located
by mysql (Raw.EleMap=sql)
L15_R13B ADC only pedestal, in general ADC channels L15_R07-12 behave
differently from channels 00-06.
RT0 top TDC shows secondary bump.
This archive was generated by hypermail 2.1.2 : Mon Feb 24 2014 - 14:07:32 EST