The crossed-field amplifier computational and experimental results

A comparison of experimental results and some large signal computer programs has established a correlation wherein the beam in a crossed-field amplifier is non-laminar. This "cycloiding" beam reduces the efficiency from that predicted by large signal analysis using a Brillouin beam, but is still calculable with minor modification to an existing computer program. The C.F.A. efficiency can also be improved by a reduction in the degree of cycloiding by a modification of the beam injection.