Reversible and irreversible emittance growth
- 1 January 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 57 (1) , 1081-1087
- https://doi.org/10.1103/physreve.57.1081
Abstract
Emittance growth in bunched charged particle beams in linear accelerators is considered in the case of a Hamiltonian system where nonlinear and time-dependent forces are dominant. Emittance growth is divided into two classes: reversible and irreversible depending on the corresponding entropy change. We consider the case where the measurement resolution is important. We show that a generalized free-energy function acts as a driver for phase-space evolution and emittance growth.Keywords
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