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Collecting electrode for an electron beam roehre, in particular drift field roehre high power
Collecting electrode for an electron beam roehre, in particular drift field roehre high power
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机译：用于电子束流向的收集电极，特别是漂移场流向的高功率
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1,149,010. Discharge tubes. SIEMENS A.G. 20 Sept., 1966 [21 Sept., 1965], No. 41921/66. Heading H1D. The collector 1 of a discharge tube, e.g. a klystron or travelling wave tube, is of rotationally symmetric form, the contour of the generatrix of the inner surface being such as to ensure that, for a continuously diverging electron beam received therein, the power density incident upon the inner surface is substantially uniform over that surface. The collector is at least partially screened from the focusing field, to permit the beam to diverge under the action of space charge. A differential equation, involving both the D.C. power of the beam and its diverging profile, to be satisfied by the collector surface is given, and an approximate method for constructing a surface satisfying it is outlined.
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