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Proceedings Paper

Hard x-ray devices for target detection at longer distances
Author(s): Michael Gertsenshteyn; Victor Grubsky; Tomasz Jannson
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Paper Abstract

Detecting and identifying organic and metallic targets at distances from 50 m to 100 m is difficult for hard X-ray detection devices, especially when targets (such as improvised explosive devices (IEDs)) are concealed behind metal (steel) and non-metal (plastic, wood, rocks, soil, etc.) walls. At least two problems are inherent to detection at such long distances: (1) the air attenuation of X-rays, which can be significant for standoff distances of x = 50 m (100 m total for 2x); and (2) a scattering factor proportional to x4 that comes from the divergence of X-rays propagating from a source to a target and X-rays backscattering from a target (usually, Compton backscattering in low Z-number materials). The compensation of these factors by novel lobster-eye hard X-ray optics is analyzed in this paper. The analysis and the optimization of the hard X-ray lobster eye lens for realistic parameters are also discussed.

Paper Details

Date Published: 14 September 2006
PDF: 10 pages
Proc. SPIE 6319, Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII, 63190F (14 September 2006); doi: 10.1117/12.681321
Show Author Affiliations
Michael Gertsenshteyn, Physical Optics Corp. (United States)
Victor Grubsky, Physical Optics Corp. (United States)
Tomasz Jannson, Physical Optics Corp. (United States)

Published in SPIE Proceedings Vol. 6319:
Hard X-Ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems VIII
F. Patrick Doty; Larry A. Franks; Arnold Burger; H. Bradford Barber; Hans Roehrig; Ralph B. James, Editor(s)

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