History: Moller

http://www.jlab.org/~adaq/halog/html/0602_archive/060228180308.html
Log entry time 18:03:08 on February28,2006
Entry number 164522
keyword=Moller results

Moller measurements 14:00-17:45
a) it turned out that the MOller dipole had been turned ON before
we started. The dipole should be normally turned off.
b) setting up the quads and FSD took quite a lot of time

Energy=1.52 GeV
Wien angle= -5o - should be close to optimum

Results:
target 5 (SM) P=-88.8±0.2(stat)
target 3 (Fe) P=-86.8±0.2(stat)
The sign is explained here

http://www.jlab.org/~adaq/halog/html/0603_archive/060325213722.html

User name E.Chudakov
Log entry time 21:37:22 on March 25, 2006
Entry number 168359
keyword=Moller results

Preliminary result: target 5 : -82.2+/-0.3+/-3(syst) % This results can be compared with -86.5% measured on March 10. The Wien angle seems to be close to optimum (Hall A polarization should be about 0.98 of the full value).

We also measured other targets, the results will be posted later, however they are also closer to 80% than to 90%.


User name A. Puckett
Log entry time 21:52:37 on March14,2006
Entry number 166667
keyword=Hall B Moller measurements

before going back to production running Hall B wants to do Moller measurements. They will alert us when they are ready to go.

http://www.jlab.org/~adaq/halog/html/0603_archive/060309201517.html

User name E.Chudakov
Log entry time 20:15:17 on March 9,2006
Entry number 166008
keyword=Moller results

Wien filter = 76.4 deg should provide a polarization of about 0.953
of the max. value.

Target 5: -86.5±0.15(stat)% (the conditions similar
to the previous measurements)
Other targets have been scanned, the results will be posted later.

http://www.jlab.org/~adaq/halog/html/0603_archive/060304224252.html


User name E.Chudakov
Log entry time 22:42:52 on March 4,2006
Entry number 165215
keyword=Moller results

The measured beam polarization is:
Target 5: +88.2±0.14(stat)%
We also made a scan with target 4. The results will
be posted later.