| 释义 |
rhumbatron Electronics.|ˈrʌmbətrɒn|
[Irreg. f. Gr. ῥύµβ-ος, ῥόµβ- whirling motion (f. ῥοµβέιν to turn around) + -tron.]
A cavity in which bunching of an electron beam is produced by an applied radio-frequency field, or conversely a pulsed beam produces a radio-frequency voltage across a gap in the cavity.
1939R. H. & S. F. Varian in Jrnl. Appl. Physics X. 322/1 The resonant properties of practically closed metal vessels... In our laboratory, these have been called ‘rhumbatrons’, from the Greek word ‘rhumba’, meaning rhythmic oscillation. 1939Jrnl. R. Aeronaut. Soc. XLIII. 388 A beam of electrons representing a constant current is sent through two metal containers acting as resonators and known as Rhumbatrons. In the first Rhumbatron is an oscillating electric field, parallel to the stream and of such strength as to change the speeds of the electrons by appreciable fraction... In the second Rhumbatron..a considerable fraction of the power of the arriving electron bunches is converted into power of high frequency oscillations. 1947Electronic Engin. XIX. 149/1 Examination of the ‘rhumbatron’ type of circuit used by the Varians introduces us to an interesting new phenomenon..the existence of an isolated electric field within each rhumbatron, in spite of the fact that the whole of the exterior of each rhumbatron and the drift-tube itself are constantly at r.f. earth potential. 1968Radio Communication Handbk. (ed. 4) ii. 23/1 A klystron is a valve containing an electron gun..from which a narrow beam of electrons is..focused through small apertures across which one or more oscillatory circuits are connected; these circuits are in the form of hollow toroidal chambers known as rhumbatrons. |
