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PHENIX Run-13 status

PHENIX Run-13 status. Hubert van Hecke for the PHENIX collaboration. Commissioning continues. Flammable gas is on since Feb 1, 2-person watch shifts started Jan 22 Cosmics taken since Feb 4, ongoing when there is no beam IR closed up since 8 th Test runs with all (~20) subsystems

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PHENIX Run-13 status

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  1. PHENIX Run-13 status Hubert van Hecke for the PHENIX collaboration Hubert van Hecke - 26 Feb 13

  2. Commissioning continues • Flammable gas is on since Feb 1, 2-person watch shifts started Jan 22 • Cosmics taken since Feb 4, ongoing when there is no beam • IR closed up since 8th • Test runs with all (~20) subsystems • Full 5-person shifts as of today • - No beam: collect cosmics • Beam: subsystem checks, ‘junk runs’ to maintain system readiness • Collisions: time in subsystems (BBC, ZDC, TOF…) Hubert van Hecke - 26 Feb 13

  3. Criteria for start-of-physics • 109 bunches in the machine • Longitudinal polarization established, <5% transverse component • >=55% polarization at the start of the store • Beta* = 0.65 • >1*1011 protons/bunch Hubert van Hecke - 26 Feb 13

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