APEX Schedule April 1, 2014 - PowerPoint PPT Presentation

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APEX Schedule April 1, 2014
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APEX Schedule April 1, 2014

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  1. APEX Schedule April 1, 2014 Injection Injection Store Injection Store Injection Injection DA measurement with 2.5GeV working point Montague Momentum Aperture measurement Luo ATS preparation GRD, Simon, Bai, Al Coupling matrix measurement Tepikian Elens commissioning Gu, Fischer, Luo, Simon DX Aperture Scan Luo, Tepikian, Al, Bai AC dipole setup Bai Back2Physics 8:00am 2:00pm 4:30pm 5:30pm 8:00pm 10:00am 10:00pm 11:00pm 12:00pm

  2. APEX Overview Back to Physics collision right after midnight • Elens commissioning • Gu, Fischer, White • Luo, etc • Confirmed e beam alignment with Au beam • First Telescope Optics Squeeze for RHIC(TOR) test • GRD, Luo, White, Shen, Bai • Achieved 0.6m beta* at both IPs in Blue with good lifetime and small global beta-beat • Beam was re-bucketed and non-cooled • First Telescope Optics Squeeze for RHIC(TOR) test • GRD, Luo, White, Shen, Bai • Achieved 0.5m beta* with good lifetime after chromaticity corrections Off-momentum aperture scan Luo, GRD, Liu etc DA with 2.5GeV working point Injection, Montag No data due to main power supply QLI IP transfer map: Tepikian V ac dipole setup: Bai DX aperture scan Luo, Marusic, Bai, Tepikian, White

  3. Elens: Gu, Fischer, White, Luo, etc Measured Orbit and Tune Shift

  4. Elens: Gu, Fischer, White, Luo, etc Summary

  5. Momentum Aperture MeasurementAl, cait, chuyu, grd, Mei, Michiko, Yun

  6. First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai IP6: Beta*x,y=0.57m,0.57m IP8: Beta*x,y=0.62m,0.61m IP6: Beta*x,y=0.55m,0.43m IP8: Beta*x,y=0.54m,0.53m Au14-ats::beta60 Au14-ats::beta50 DX aperture Scan at Injection

  7. First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai Au14-ats::beta60

  8. First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai

  9. First Telescope Optics Squeeze for RHIC testGRD, Marusic, Shen, White, Luo, Tepikian, Bai Poor data quality due to lower bunch intensity Au14-ats::beta50

  10. DX Aperture ScanMarusic, Luo, Tepikian, Bai Summary & Plan 1. Full sets of data taken at injection Measurement done at injection after a dipole QLI 2. Detailed data analysis is under way likely beam began to loss at 1.6mrad ( half of maximum ) 3. May repeat this experiment once → one confirmation at injection → one confirmation at store