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Coupling Beam Transfer Function (BTF) Measurement Y. Luo, M. Minty - PowerPoint PPT Presentation

Coupling Beam Transfer Function (BTF) Measurement Y. Luo, M. Minty March 28, 2018 APEX session General Beam condition: ~ 1 hour at store with Ru+, 12*12 bunched, re-bucketed, Blue ring Procedure: set up experiment condition


  1. Coupling Beam Transfer Function (BTF) Measurement Y. Luo, M. Minty March 28, 2018 APEX session

  2. General ● Beam condition: ~ 1 hour at store with Ru+, 12*12 bunched, re-bucketed, Blue ring ● Procedure: → set up experiment condition → scan blue skewQ F2, F13 in steps measure eignmode projections, BTF Note: no time to fine tune the operational coupling angles

  3. Examples Eigenmode projections WCM monitor BTF with coupling

  4. Preliminary data processing Setting r1 r2 F2: +0.1 1.0 0.6 F2: +0.2 1.25 0.3 F2: +0.3 1.4 0.4 F13: +0.1 0.8 0.3 F13: +0.2 1.4 0.5 F13: +0.3 1.6 0.6 Note: simulations to be done to compare these measurements.

  5. Summary ● Taken a full set of data with different skewQ settings as planned. ● Will do BTF simulations to compare the results. ● If time allows in future, would like to repeat without re-bucked beam: 1) Why there are side peaks on both sides of main peak? Is it related to re-bucketed or not? 2) How rebucketed beam affect BTF measurment

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