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A summary on Polarisation in Run-12 for 255 geV

A summary on Polarisation in Run-12 for 255 geV. E.C. Aschenauer presenting the work done by Alan, anders , Bill and Dima. 2 55 GeV Results. Flat top for 255 GeV. injections for 255 GeV. polarisation at injection Blue and Yellow Caveat: Online pC numbers not normalized

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A summary on Polarisation in Run-12 for 255 geV

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  1. A summary on Polarisation in Run-12for 255 geV E.C. Aschenauer presenting the work done by Alan, anders, Billand Dima

  2. 255 GeV Results Flat top for 255 GeV injections for 255 GeV polarisation at injection Blue and Yellow Caveat: Online pC numbers not normalized to jet 2012/04/03

  3. 255 GeV Results Blue-1 polarisation at flat top Blue and Yellow H-Jet Yellow-1  longitudinal 2012/04/03

  4. Normalization to H-Jet Blue-1: already in good agreement with jet Blue-2: experimental polarimeter need a to normalize by 1.2 2012/04/03

  5. Normalization to H-Jet Yellow-1: need a to normalize by 1.07 Yellow-2: already in good agreement with jet 2012/04/03

  6. 255 GeVResults Transverse Fills Polarisation lifetime in yellow very similar to longitudinal 255 GeV fills 0.10%±0.23/hour 1.4%±0.21/hour 2012/04/03

  7. 255 GeV Results 0.71%±0.28/hour 1.288%±0.18/hour H-Jet: Fills: 16586-16592 longitudinal 2012/04/03

  8. 255 GeV Results 0.62%±0.13/hour 0.9%±0.11/hour Polarisation lifetime very similar run-11 and run-12 so 255 GeV did not do the trick Run-11 0.39%±0.07/hour Run-11 0.78%±0.07/hour 2012/04/03

  9. 255 GeV Results 1.2%±0.16/hour 0.8%±0.096/hour Polarisation Lifetime for low Emittance fills 2012/04/03

  10. 255 GeV Results 0.75%±0.13/hour 0.39%±0.10/hour Polarisation Lifetimesince last week Jet same fill range 2012/04/03

  11. Polarisation loss through rotator ramp Blue Beam Shown are the polarisation measurements before and after the rotator ramp at 255 GeV Yellow Beam 2012/04/03

  12. Radial SPIN Angle Measured by pC 24 GeV 100 GeV 255 GeV 2012/04/03

  13. Big Problem • Basically no targets left in blue and yellow • If you want these info as presented we need to install new targets in both beams • Impact on APEX program 2012/04/03

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