Accession Number : ADA204886

Title :   Transverse Wake Potentials for Wide Radial Lines,

Corporate Author : SCIENCE APPLICATIONS INTERNATIONAL CORP ALBUQUERQUE NM

Personal Author(s) : Godfrey, Brendan B

PDF Url : ADA204886

Report Date : 07 Mar 1988

Pagination or Media Count : 40

Abstract : The transverse wake potential for a radial line terminated by a lumped impedance is derived analytically for arbitrary line width. Using these formulas, the wake potential is evaluated numerically for parameters relevant to high current, electron beam, induction accelerators. The transverse wake potential scales as the line width divided by the square of the drift tube radius for narrow lines, in agreement with earlier studies. However, the potential becomes roughly independent of line width and varies only with the reciprocal of the drift tube radius for widths somewhat greater than the radius. Several additional resonances arising for wide lines do complicate the scaling. Nonetheless, it appears that wide, high voltage radial lines may reduce beam breakup and image displacement instability growth significantly for compact accelerator designs. Keywords: Compact induction accelerators, Electron accelerators, High current electron beams, Beam breakup instability. (JHD)

Descriptors :   *ELECTRON ACCELERATORS, DISPLACEMENT, ELECTRODES, ELECTRON BEAMS, HIGH POWER, IMPEDANCE, INDUCTION SYSTEMS, LINES(GEOMETRY), PARTICLE ACCELERATORS, RADIUS(MEASURE), STABILITY, TRANSVERSE, WAKE

Subject Categories : Particle Accelerators

Distribution Statement : APPROVED FOR PUBLIC RELEASE