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C and S band BPM system update

C and S band BPM system update. A. Aryshev, S. T. Boogert, S. Molloy, C. Swinson . Introduction. System design and implementation Calibration progress Problems with phase stability and beam motion Results from calibration. Calibration. Mover calibration. Bump calibration.

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C and S band BPM system update

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  1. C and S band BPM system update A. Aryshev, S. T. Boogert, S. Molloy, C. Swinson ATF2 Software meeting

  2. Introduction • System design and implementation • Calibration progress • Problems with phase stability and beam motion • Results from calibration ATF2 Software meeting

  3. Calibration Mover calibration Bump calibration • Performed many quad mover calibration • Single bump to calibrate QD10 to QD21X • S-band system not yet done (reference cavity still missing) • Will be magnet mover based ATF2 Software meeting

  4. Hardware installation Schematic hardware installation Photographs of Hardware installation ATF2 Software meeting

  5. Software installation ATF2 Software meeting

  6. Reference problems MREF1FF MREF2FF MREF3FF MREF1X • Typically the reference cavity is downstream of the BPMs • Problematic when doing mover based calibration • Not been such a problem recently but difficult when line is poorly steered • Only currently using one reference (MREF1X) ATF2 Software meeting

  7. Trigger/clock stability ATF2 Software meeting

  8. Mover calibration example ATF2 Software meeting

  9. Beam bump calibration example ATF2 Software meeting

  10. Future work • S-band soon • Reference integration before April beam? • Fix trigger/clock problems • Install beam arrival diode • RF locking system • Code upgrades • Saturation • Tone calibration • Environment monitoring (temperature, LO, cal-tone) ATF2 Software meeting

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