Gaussian-profile beams
Description:
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 …
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Date:
November 3, 1982
Creator:
Lee, Edward P.
Item Type:
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Report
Partner:
UNT Libraries Government Documents Department