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Theoretical studies of the ion-hose instability in a plasma-focused free-electron laser

Journal Article · · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)
DOI:https://doi.org/10.1109/27.221117· OSTI ID:6338541
;  [1];  [2]
  1. National Lab. for High Energy Physics, Ibaraki (Japan)
  2. Univ. of California, San Diego, La Jolla (United States)
AN ion-focused' relativistic electron beam traversing a magnetic wiggler is subject to a transverse two-stream or ion-hose' instability, resulting from the coupling of transverse displacements of the beam centroid to the slosh' motion of the (beam-focused) nonneutral ion plasma, and driven by the V x B' deflection in the wiggler field. The equations of motion are resolved into an inhomogeneous beam break-up' equation and asymptotic growth is computed in the limit of linear focusing. The effect of nonlinearities is assessed numerically with a distributed mass' model. As examples, the authors consider ion-hose growth ina UV FEL and microwave FEL two-beam accelerator.'
DOE Contract Number:
AC03-76SF00098; FG03-90ER81080
OSTI ID:
6338541
Journal Information:
IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) Journal Issue: 1 Vol. 21:1; ISSN ITPSBD; ISSN 0093-3813
Country of Publication:
United States
Language:
English