Measurement of bunch length and temporal distribution using accelerating radio frequency cavity in low-emittance injector.

ABSTRACT: We demonstrate an experimental methodology for measuring the temporal distribution of pico-second level electron bunch with low energy using radial electric and azimuthal magnetic fields of an accelerating ([Formula: see text] mode) radio frequency (RF) cavity that is used for accelerating electron beams in a linear accelerator. In this new technique, an accelerating RF cavity provides a phase-dependent transverse kick to the electrons, resulting in the linear coupling of the trajectory angle with the longitudinal position inside the bunch. This method does not require additional devices on the beamline since it uses an existing accelerating cavity for the projection of the temporal distribution to the transverse direction. We present the theoretical basis of the proposed method and valida

SUBMITTER: Hwang JG 

PROVIDER: S-EPMC7609657 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature