We presented a novel concept of longitudinal bunch train compression capable of manipulating relativistic electron beam in range of hundreds of meters. This concept has the potential to compress the electron beam with a high ratio and raise its power to an ultrahigh level. The method utilizes the spiral motion of electrons in a uniform magnetic field to fold hundreds-of-meters-long trajectories into a compact set-up. The interval between bunches can be adjusted by modulating their sprial movement. The method is explored both analytically and numerically. Compared to set-up of similar size, such as chicane, this method can compress bunches at distinct larger scales and higher intensities, opening up new possibilities for generating beam with ultra-large energy storage.
@article{arxiv.2302.10462,
title = {Longitudinal compression of macro relativistic electron beam},
author = {An Li and Jiaru Shi and Hao Zha and Qiang Gao and Liuyuan Zhou and Huaibi Chen},
journal= {arXiv preprint arXiv:2302.10462},
year = {2023}
}