microtronn.
/ˈmʌɪkrə(ʊ)trɒn/, U.S. /ˈmaɪkroʊˌtrɑn/, /ˈmaɪkrəˌtrɑn/ Physics.
A variant of the cyclotron in which electrons are accelerated by microwaves.
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calutron1945
microtron1946
synchrocyclotron1947
1946 Rev. Sci. Instruments 17 9/1 The microtron, suggested by J. S. Schwinger and by V. Veksler, is an electron cyclotron in which the particles slip one cycle of phase on each circuit through a constant magnetic field.
1958 Times 21 June 4/7 It is called the ‘microtron’ because the electrical pulses used in acceleration are got from a pulsed microwave oscillator.
1974 Nature 1 Feb. 250/3 A prototype continuous microtron (a cyclic accelerator in which the electrons are accelerated by microwaves) has been constructed in Obninsk... Until now, it has proved possible to operate microtron accelerators in a pulsed mode only, with a relatively low repetition frequency.
1995 Nucl. Instruments & Methods in Physics Res. A. 358 529/1 The Novosibirsk high power FEL race-track microtron for photochemical research.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1946