Speaker
Description
KEK LUCX facility is a normal conductive multi-bunch electron linear
accelerator devoted to develop an intense monochromatic source of laser-Compton
X-ray for monochromatic X-Ray imaging. In order to perform samples
tomography, stable laser-Compton X-ray beam is necessary. From accelerator side,
laser-Compton X-ray generation stability is basically defined by electron beam
parameters stability, while these parameters depend on accelerating field phase and
amplitude. Therefore, the stabilization of accelerating field is a milestone to
generate stable X-ray. Digital LLRF phase and amplitude feedforward system was
developed, tested and implemented into KEK LUCX facility RF system for the
accelerating field precise control.
This research presents results of electron beam parameters stabilization at
KEK LUCX facility. These parameters are beam average energy, energy spread
(RMS), bunch charge, beam arrival time, transverse normalized emittance. Also,
Digital LLRF feedforward system technical details are explained.
