2009/01/09 by S. J. Han, Han, S. J.
Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci #physics.acc-ph
paper · pdf · doi:10.48550/arxiv.0901.1167
A useful study for the development of radiation or neutron sources for diagnostics in material science
arxiv created 2009/01/18 · arxiv updated 2009/12/01
A self-focusing of a coasting relativistic beam in a plasma channel that is confined by an external magnetic field is studied as a means of reconditioning the beam emerging from a beam injector [a radio frequency quadrupole (RFQ)] for a linac. A detailed study of the beam stability in the self-focused beam has been carried out. In order to explain beam filaments and the resistive hose instability in a unified way, we treat all the azimuthal modes in the derivation of the dispersion relation in a finite plasma channel that exhibit many unstable modes, which are classified by Weinberg's scheme [Steven Weinberg, J. Math. 8, 614 (1967)].