X-ray optics design studies for the SLAG 1.5-15 angstrom Linac coherent light source (LCLS)

In recent years, a number of systematic studies have been carried out on th e design and R&D aspects of X-ray free-electron laser (XRFEL) schemes based on driving highly compressed electron bunches from a multi-GeV linac throu gh long (30 m - 100 + m) undulators. These sources, when operated in the se lf-amplified spontaneous emission (SASE mode, feature singularly high peak output power densities and frequently unprecedented combinations of phase-s pace and output-parameter values. This has led to correspondingly pivotal d esign challenges and opportunities for the optical materials, systems, comp onents, and experimental configurations for transporting and utilizing this radiation. In this paper we summarize the design and R&D status of the X-r ay optics section of the SLAG Linac Coherent Light Source (LCLS), a 1.5 Ang strom SASE FEL driven by the last kilometer of the SLAG 3-kilometer S-band linac. (C) 1999 Elsevier Science B.V. All rights reserved.