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Comparison of Fundamental and Dual Harmonic RF Buckets

Comparison of Fundamental and Dual Harmonic RF Buckets. V 0. Volts (KV). δ V 0. Θ (deg). @ time = 0.3 ms ~ peak trapping loss Bucket Phase length: 218 - 289 deg, Acceptance: 1.04 - 1.24 eVs. Time (ms). Operational theta Oct & Nov 07. 1&2RF Operational Gapvolts Oct & Nov 07

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Comparison of Fundamental and Dual Harmonic RF Buckets

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  1. Comparison of Fundamental and Dual Harmonic RF Buckets V0 Volts (KV) δV0 Θ (deg) @ time = 0.3 ms ~ peak trapping loss Bucket Phase length: 218 - 289 deg, Acceptance: 1.04 - 1.24 eVs Time (ms)

  2. Operational theta Oct & Nov 07

  3. 1&2RF Operational Gapvolts Oct & Nov 07 2RF - ~9kV peak (on 2 cavities) >200uA for last day or so of last run!

  4. Longitudinal Profile at 0ms green 200 µA Red 210 µA Blue dot 230 µA Black 175 µA

  5. Longitudinal Profile at 0.25ms green 200 µA Red 210 µA Blue dot 230 µA Black 175 µA

  6. Longitudinal Profile at 0.5ms green 200 µA Red 210 µA Blue dot 230 µA Black 175 µA

  7. Operational delta October & Nov 07

  8. October 2RF Machine Physics

  9. Tweaked delta during 50Hz operations delta changed by changing (slowly) antiphasing -> phasing rise time

  10. Achievable delta cf Theoretical

  11. Analysis of pulse shapes

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