Longitudinal dynamics in storage rings
1987
Abstract We derive the single-particle equations of motion for charged particles in a storage ring. Longitudinal space charge is included in the potential assuming an infinitely conducting circular beam pipe with a distributed inductance. The framework uses Hamilton's equations with the canonical variables φ and W . The Twiss parameters for longitudinal motion are also defined for the small amplitude synchrotron oscillations. The space-charge Hamiltonian is calculated for both parabolic bunches and “matched” bunches. We also give a brief analysis that includes second-harmonic rf contributions. In the final sections, we calculate dynamical quantities and particle simulations with the space-charge effects neglected.
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