| 摘要 |
An optical streak camera for detecting a light signal representing an optical event occurring in an ultra-short time interval, comprising; a photocathode for emitting electrons; means for propagating optical radiation in free space in a predetermined region that includes the photocathode, said means for providing electrons with velocitythat depends upon the time at which they were emitted within the region of radiation; and means for collecting the electrons and for displaying an output signal characteristic of the distribution of their velocities.
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