Collective Resonance Model of Energy Exchange in 3D Nonequipartitioned Beams
- 12 March 2001
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 86 (11) , 2313-2316
- https://doi.org/10.1103/physrevlett.86.2313
Abstract
Energy exchange between the longitudinal and transverse degrees of freedom of nonequipartitioned bunched beams (non-neutral plasmas) is investigated by means of 3D simulation. It is found that collective instability may lead to energy transfer in the direction of equipartition, without full progression to it, in certain bounded regions of parameter space where internal resonance conditions are satisfied, in good agreement with stability charts from an earlier derived 2D Vlasov analysis. Nonequipartitioned stable equilibria, however, exist in relatively wide regimes of parameter space. This provides evidence that such regimes may be safely used in the design of future high-intensity linacs.Keywords
This publication has 16 references indexed in Scilit:
- Energy Transfer in Nonequilibrium Space-Charge-Dominated BeamsPhysical Review Letters, 2000
- Coulomb scattering within a spherical beam bunch in a high current linear acceleratorPhysical Review Special Topics - Accelerators and Beams, 1999
- Thermal equilibria and thermodynamics of trapped plasmas with a single sign of chargePhysics of Plasmas, 1998
- Reversible and irreversible emittance growthPhysical Review E, 1998
- Proposed High-Current rf Linear Accelerators with Beams in Thermal EquilibriumPhysical Review Letters, 1995
- Theory and Design of Charged Particle BeamsPublished by Wiley ,1994
- The Fermi-Pasta-Ulam problem: Paradox turns discoveryPhysics Reports, 1992
- Beam-Intensity Limitations in Linear AcceleratorsIEEE Transactions on Nuclear Science, 1981
- Emittance Growth of Beams Close to the Space Charge LimitIEEE Transactions on Nuclear Science, 1981
- The stability of matterReviews of Modern Physics, 1976