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Proceedings Paper

Production of tunable monochromatic x rays by the Vanderbilt free-electron laser
Author(s): Frank Edward Carroll M.D.; James W. Waters; Robert H. Traeger; Marcus H. Mendenhall; Weiwei Clark; Charles A. Brau
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Paper 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.

Paper Details

Date Published: 19 July 1999
PDF: 8 pages
Proc. SPIE 3614, Free-Electron Laser Challenges II, (19 July 1999); doi: 10.1117/12.352661
Show Author Affiliations
Frank Edward Carroll M.D., Vanderbilt Univ. Medical Ctr. (United States)
James W. Waters, Vanderbilt Univ. (United States)
Robert H. Traeger, Vanderbilt Univ. Medical Ctr. (United States)
Marcus H. Mendenhall, Vanderbilt Univ. (United States)
Weiwei Clark, Vanderbilt Univ. (United States)
Charles A. Brau, Vanderbilt Univ. (United States)

Published in SPIE Proceedings Vol. 3614:
Free-Electron Laser Challenges II
Harold E. Bennett; David H. Dowell, Editor(s)

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