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Title: Spectrum of single bunch longitudinal dipole modes

Journal Article · · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
;  [1]
  1. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York11973 (United States)

A mode of coherent longitudinal dipole motion of the beam in the National Synchrotron Light Source (NSLS) vacuum ultraviolet (vuv) ring with small frequency is observed by Biscardi {ital et al.} [Rev. Sci. Instrum. {bold 66}, 1856 (1995)]. We point out in this paper that the coherent motion observed is, although a solution to the well-known secular equation for Robinson instability, a distinct mode of beam dipole motion from what is normally known as the Robinson mode. In this paper the mode{close_quote}s properties and its relationships with the usual Robinson mode are developed. The collision of the two modes is understood analytically and observed experimentally in the NSLS vuv ring. {copyright} {ital 1998} {ital The American Physical Society}

OSTI ID:
625857
Journal Information:
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 57, Issue 3; Other Information: PBD: Mar 1998
Country of Publication:
United States
Language:
English