SOFT X-RAY FREE-ELECTRON LASER WITH AN ELECTROMAGNETIC WIGGLER. Conference Paper uri icon

abstract

  • The use of a high-power IR laser as the wiggler for a free-electron laser (FEL) provides a means to generate coherent X-rays using an electron beam of very modest energy (approximately 5 MeV). The three most important factors in building such a device are a good quality electron beam (low emittance and low energy spread with sufficient peak current), sufficient power and pulse energy in the IR pump laser, and X-ray resonator mirrors with good reflectivity. At the present state of technology, it seems feasible to build an FEL operating in the 100-500 angstrom range. Previous analyses of such devices neglected the important limiting factor of electron-beam emittance but did elucidate some features peculiar to these devices, such as the mass shift problem. Here the gain obtainable when emittance is taken into account is considered and ways by which one might overcome the mass-shift problem are discussed.

author list (cited authors)

  • Gea-Banacloche, J., Moore, G. T., Scully, M. O., Schlicher, R., & Walther, H.

complete list of authors

  • Gea-Banacloche, J||Moore, GT||Scully, MO||Schlicher, R||Walther, H

publication date

  • January 1987