It is shown that an elementary semi-quantitative approach explains essential features of the X-ray free-electron laser mechanism, in particular those of the gain and saturation lengths. Using mathematical methods and derivations simpler than complete theories, this treatment reveals the basic physics that dominates the mechanism and makes it difficult to realise free-electron lasers for short wavelengths. This approach can be specifically useful for teachers at different levels and for colleagues interested in presenting X-ray free-electron lasers to non-specialized audiences.
No takes yet. Share an insight, caveat, or question.
Margaritondo et al. (2011) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: