Production of tunable monochromatic x rays by the Vanderbilt free-electron laser

Frank Edward Carroll M.D.; James W. Waters; Robert H. Traeger; Marcus H. Mendenhall; Weiwei Clark; Charles A. Brau

doi:10.1117/12.352661

19 July 1999 Production of tunable monochromatic x rays by the Vanderbilt free-electron laser

Frank Edward Carroll M.D., James W. Waters, Robert H. Traeger, Marcus H. Mendenhall, Weiwei Clark, Charles A. Brau

Proceedings Volume 3614, Free-Electron Laser Challenges II; (1999) https://doi.org/10.1117/12.352661
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

Sustained/long duration X-ray output has been demonstrated emanating from the monochromatic X-ray beamline of the Vanderbilt Free-Electron Laser. Tunable, pulsed monochromatic X-rays ranging in energy from 14 - 18 keV are produced by inverse Compton scattering created by the counter propagation of the FEL e-beam and its own infrared beam. These beams are focused and optimized at an interaction zone between the linac and the wiggler where they are brought into coalignment. The X-rays produced exit the beamline through a beryllium window and are directed onto mosaic crystals which divert the beam to an imaging laboratory on the floor above the vault. The initial application of these X-rays is directed toward human imaging, specifically for the diagnosis of breast diseases including cancer. The characteristics of the X-rays are such that they can be used in standard geometry monochromatic imaging, CT like images of the breast using a rotating mosaic crystal 'optic,' time-of-flight imaging and phase contrast images. Eventual extension to other portions of the body, cell biology and material sciences are already anticipated.

Citation Download Citation

Frank Edward Carroll M.D., James W. Waters, Robert H. Traeger, Marcus H. Mendenhall, Weiwei Clark, and Charles A. Brau "Production of tunable monochromatic x rays by the Vanderbilt free-electron laser", Proc. SPIE 3614, Free-Electron Laser Challenges II, (19 July 1999); https://doi.org/10.1117/12.352661

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