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Design of a Triodelike Electron Gun for Millimeter-Wave Gyrodevices

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5 Author(s)
Robertson, C.W. ; SUPA, University of Strathclyde, Glasgow, U.K. ; Young, A.R. ; Ronald, K. ; Cross, A.W.
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A computational study has been made on the design of a 150-kV triodelike switchable electron gun. A smooth magnetic cusp arrangement was used to produce an axis-encircling beam. Numerical optimization of this arrangement led to a gun design that produced beam parameters of $I_{b} sim hbox{6} hbox{A}$, $alpha = hbox{1.2}$, and $dalpha sim hbox{15}%$. It has also been shown that this triode design can produce beam suppression at $sim$2 kV while not interfering with the beam parameters under operation conditions.

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Electron Devices, IEEE Transactions on  (Volume:59 ,  Issue: 9 )