| 释义 |
microtron|ˈmaɪkrəʊtrɒn|
[f. microwave n. + -tron.]
A variant of the cyclotron for accelerating electrons by passing them repeatedly through a cavity in which they are accelerated by microwaves, the amount of the acceleration on each passage being such as to allow for the increase in their time of revolution that results from their relativistic increase in mass.
1946Rev. Sci. Instruments XVII. 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. 1958Times 21 June 4/7 It is called the ‘microtron’ because the electrical pulses used in acceleration are got from a pulsed microwave oscillator. 1974Nature 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. |