Gaussian-profile beams
Gaussian-profile beams
The growth rate of the hose instability is derived for a beam with Gaussian radial profile, using the spread mass model of phase mix damping. It is found that the maximum growth rate of a convecting wave packet is 49% larger than that derived for a beam with the Bennett profile, and the inverse group velocity (dz/d tau) is also increased by about this amount. A general discussion of spread mass models is presented along with an explanation of the regurgitation phenomena seen in their numerical treatment.
- Lawrence Berkeley National Laboratory United States
- University of North Texas United States
- National University United States
43 Particle Accelerators, Hose Instability, Lepton Beams, Beams, Instability, Particle Beams, Plasma Microinstabilities 430200* -- Particle Accelerators-- Beam Dynamics, Electron Beams, Damping, Field Calculations, Instability Growth Rates, Pinch Effect, Plasma Instability, Current Density, & Ion Optics
43 Particle Accelerators, Hose Instability, Lepton Beams, Beams, Instability, Particle Beams, Plasma Microinstabilities 430200* -- Particle Accelerators-- Beam Dynamics, Electron Beams, Damping, Field Calculations, Instability Growth Rates, Pinch Effect, Plasma Instability, Current Density, & Ion Optics
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