A Quantal, Partially Ordered Electron Structure as a Basis for a \gamma Free Electron Laser (\gamma-FEL)
Abstract
When a rather cold electron bunch is transported during laser bubble acceleration in a strongly focusing plasma channel with typical forces of 100 GeV/m, it will form partially ordered long electron cylinders due to the relativistically longitudinal reduced repulsion between electrons, resulting in a long-range pair correlation function, when reaching energies in the laboratory above 0.5 GeV. During Compton back-scattering with a second laser, injected opposite to the electron bunch, the electron bunch will be further modulated with micro bunches and due to its ordered structure will reflect coherently, M\"ossbauer-like, resulting in a \gamma free electron laser (\gamma-FEL). Increasing the relativistic \gamma factor, the quantal regime becomes more dominant. We discuss the scaling laws with \gamma.
Keywords
Cite
@article{arxiv.1206.0940,
title = {A Quantal, Partially Ordered Electron Structure as a Basis for a \gamma Free Electron Laser (\gamma-FEL)},
author = {D. Habs and M. M. Günther and S. Karsch and P. G. Thirolf and M. Jentschel},
journal= {arXiv preprint arXiv:1206.0940},
year = {2012}
}