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A SUMMARY ON POLARISATION IN RUN-12100GEV AND FIRST RESULTS FOR 250 GEV
E.C. ASCHENAUERPRESENTING THE WORK DONE BY ALAN,
ANDERS, BILL AND DIMA
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Phil Pile Meeting 2012/03/20
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100 GEV RESULTS
E.C. Aschenauer
polarisation at injectionBlue and Yellow
Caveat:only first round of cleaningup noise in polarimeters was done
pC numbers not normalized to jet
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polarisation at flat topBlue and Yellow
100 GEV RESULTS
H-JET
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Phil Pile Meeting 2012/03/20
4E.C. Aschenauer
0.47%±0.040/hour 0.97%±0.047/hour
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Phil Pile Meeting 2012/03/20
5E.C. Aschenauer
0.46%±0.11/hour0.80%±0.11/hour
H-JetFills: 16386-16439
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Phil Pile Meeting 2012/03/20
6E.C. Aschenauer
0.90%±0.095/hour0.42%±0.08/hour
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Phil Pile Meeting 2012/03/20
7E.C. Aschenauer
1.85%±0.13/hour0.41%±0.07/hour
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Phil Pile Meeting 2012/03/20
8E.C. Aschenauer
1.77%±0.17/hour0.18%±0.118/hour
H-JetFills: 16502-16511
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Phil Pile Meeting 2012/03/20
9E.C. Aschenauer
0.76%±0.08/hour0.35%±0.11/hour
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255 GEV RESULTS
polarisation at injectionBlue and Yellow
Caveat:pC numbers not normalized to jet
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Phil Pile Meeting 2012/03/20
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255 GEV RESULTS
E.C. Aschenauer
polarisation at flat topBlue and Yellow
H-Jet
longitudinalH-Jet Run-11
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Phil Pile Meeting 2012/03/20
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255 GEV RESULTS
E.C. Aschenauer
1.288%±0.18/hour0.71%±0.28/hour
Run-110.39%±0.07/hour
Run-110.78%±0.07/hour
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Phil Pile Meeting 2012/03/20
13
255 GEV RESULTS
E.C. Aschenauer
1.288%±0.18/hour0.71%±0.28/hour
H-Jet:Fills: 16570-16592trans + longitudinal
H-Jet:Fills: 16586-16592longitudinal
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Phil Pile Meeting 2012/03/20
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SUMMARY 100 GeV:
main loss in polarisation through decay in fill polarisation decay varies from week to week for the two
beams jet and pC polarimeters consistent observing the same
trends
255 GeV: the polarisation loss through decay in fill and on the
ramp jet and pC polarimeters consistent observing the same
trends observed polarisation consistent with 2011 average polarisation decay in fill “comparable” to 2011
E.C. Aschenauer