Development of an XUV-IR free-electron laser user facility for scientific research and industrial applications

摘要

Abstract: Los Alamos has designed and proposes to establish anXUV-IR free-electron laser (FEL) user facility forscientific research and industrial applications basedon coherent radiation ranging from soft x rays as shortas 1 nm to far-infrared wavelengths as long as 100$mu@m. As the next-generation light source beyondlow-emittance storage rings with undulator insertiondevices, this proposed national FEL user facilityshould make available to researchers broadly tunable,picosecond-pulse, coherent radiation with 10$+4$/ to10$+7$/ greater spectral flux and brightness. Thefacility design is based on two series of FELoscillators including one regenerative amplifier. Theprimary series of seven FEL oscillators, driven by asingle, 1-GeV rf linac, spans the short-wavelengthrange from 1 to 600 nm. A second 60-MeV rf linac,synchronized with the first, drives a series of threeVis/IR FEL oscillators to cover the 0.5 to 100-$mu@mrange. This paper presents the motivation for such afacility arising from its inherently high power perunit bandwidth and its potential use for an array ofscientific and industrial applications, describes thefacility design, output parameters, and userlaboratories, makes comparisons with synchrotronradiation sources, and summarizes recent technicalprogress that supports the technical feasibility.!80