Pulse compression of an intense relativistic electron beam using multi-stage autoacceleration

Description

Experiments on two-stage and four-stage autoacceleration were carried out to investigate the pulse compression of an intense relativistic electron beam (IREB). An annular IREB of 600 KeV, 5 KA and 12 ns was propagated through a two-stage cavity or a four-stage cavity structure. The beam with energy of 1.1 MeV and duration of 3 ns was obtained in the two-stage experiment. These results demonstrated the applicability of the autoacceleration process to multi-stage autoacceleration. The duration of the accelerated part in the beam became 0.6 ns in the four-stage experiment.

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