The kW-class infrared (IR) Free Electron Laser (FEL) at Jefferson Lab had the capability of producing intracavity Thomson scattering of the IR off the electron beam thus producing high average flux, sub-picosecond x-rays. We have measured these x-rays and demonstrated the energy tuneability range from 3.5 keV to 18 keV. The corresponding flux and brightness has been estimated and will be discussed. This year, 2002, the FEL was disassembled and has been reconfigured to produce 10 kW average power IR. We present the estimated x-ray capabilities for the new FEL and discuss potential applications.

Authors: J.R. Boyce, S.V. Benson, C.L. Bohn, D.R. Douglas, H.F. Dylla, J.F. Gubeli, U. Happek, K. Jordan, G.A. Krafft, G.R. Neil, P. Piot, M.D. Shinn, G.P. Williams, M.D. Shinn, G.P. Williams

maintained by the Publications Manager