Sliced multilayer grating x-ray spectroscopy

Michele Wilson McColgan; Muamer Zukic; Jongmin Kim; Douglas G. Torr; Alphonsus John Fennelly; Edward L. Fry

doi:10.1117/12.193187

7 November 1994 Sliced multilayer grating x-ray spectroscopy

Michele Wilson McColgan, Muamer Zukic, Jongmin Kim, Douglas G. Torr, Alphonsus John Fennelly, Edward L. Fry

Proceedings Volume 2283, X-Ray and Ultraviolet Spectroscopy and Polarimetry; (1994) https://doi.org/10.1117/12.193187
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Low energy monochromatic x rays can be ]used to detect the attenuation differences between fibrous, fat, and cancerous tissues in mammography, evaluation of computer processor chips, as well as quality control for micro components. At 17 keV, carcinomas, fibrous and fatty tissues attenuate incident radiation to different degrees which permits non invasive detection of cancerous tissue. A sliced transmission multilayer grating is presented that produces monochromatic x-ray radiation at 17 keV. The sliced multilayer utilizes the coincidence of Bragg and diffraction orders to achieve higher efficiency and resolution than a conventional grating. A classical multilayer consisting of low and high atomic number materials along with a monomaterial multilayer in which the density of the material is varied to simulate two different layers are presented.

Citation Download Citation

Michele Wilson McColgan, Muamer Zukic, Jongmin Kim, Douglas G. Torr, Alphonsus John Fennelly, and Edward L. Fry "Sliced multilayer grating x-ray spectroscopy", Proc. SPIE 2283, X-Ray and Ultraviolet Spectroscopy and Polarimetry, (7 November 1994); https://doi.org/10.1117/12.193187

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