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User name beise

Log entry time 08:42:20 on March 26, 2007

Entry number 136144

keyword=Final G0 RC report

RC Report

RC summary Sat-Mon 03-24/26-2007

Betsy Beise

That's all folks!
Summary for the period from 4 PM Saturday to 8 AM Monday, the end of the run.   We've had a very quiet and productive weekend of production running.  Herbert completed some special random runs on Saturday OWL, we took an additional 1 C of pion matrix data, and the swing crew did a leakage current test, the results of which were very consistent with the Oct 06 test.

The IHWP state is OUT as of about 2 AM Saturday.

Our final production Coulomb count for  March 2007 is 9.8 C (IN) and 7.1 (OUT), runs 34323 - 34851.
(Wien angle was changed just before run 34456) .

Our LD2 687 MeV Coulomb count for the Fall 2006 run is 17.8 C (IN) and 19.4 C (OUT), runs 31938-33042.

Colleen posted a summary of run ranges for all running periods in the ELOG (Analysis/54).


Achievements during this period

1) Leakage run:  Mat has posted results for the leakage run in and ELOG (Analysis/55) -- it's clear from the pion and electron matrices that there are electrons coming down the beam pipe, consistent with a beam current of about 1-2 nA. 

2) We got a balanced set (between IN/OUT) of pion matrix data. The longitudinal asymmetry appears to be close to 0, and we measured it with a precision of about 2-3 ppm.

Plans:  Lots of rest and on to data analysis!

Shift report summaries
 
Saturday  Swing   Swing  and  Beamcounts
Sunday Owl      Owl    and  Beamcounts
Sunday Day      Day    and  Beamcounts
Sunday Swing   Swing  and  Beamcounts
Monday Owl      Owl    and  Beamcounts
Betsy Beise
 Cell :  876-1791
 e-mail : beise@umd.edu