June 18, Tuesday: Longitudinal motion

Longitudinal Motion

Accelerating Structures

[slides]

  • Time varying fields and accelerating gap
  • Transit Time Factor
  • The pillbox cavity – essential properties
  • Resonant Structures
  • Standing wave vs. traveling wave and multi-cell structures

Longitudinal Focusing (J. Kunz)

[slides]

  • Ideal synchronous particle and ideal timing
  • Time of flight and slip factor
  • Longitudinal focusing
  • Beam bunchers, rebunchers, debunchers

Transverse Effects of Longitudinal Motion (T. Mohayai)

[slides]

  • Adiabatic damping of betatron oscillations due to acceleration
  • Adiabatic damping and normalized emittance
  • Momentum dispersion
    • equation of motion of off-momentum particle
    • momentum compaction and slip factors

Whiteboard time (move up next time)

See also:

Lecture notes by Linda Spentzouris:

  • Accelerating structures: accelerating structures, resonant modes, Feynman derivation of electric field in resonant cylindrical cavities
  • Longitudinal dynamics: longitudinal beam structure, difference and differential equations, energy error to travel time error, phase space trajectories, synchrotron frequency