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Proceedings Paper

New low-dose 1-MeV cargo inspection system with backscatter imaging
Author(s): William Wade Sapp; Peter J. Rothschild; Richard L. Schueller; Andrey Mishin
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Paper Abstract

A new intermediate energy x-ray source is described which uses a cw electron linear accelerator created specifically for this application. This source has been installed in the hub of a hollow-spoked rotation wheel to form a scanning beam of x-rays. As cargo is transported through the inspection tunnel at speeds up to 6 inches per second it is raster-scanned by this beam to form digital images of the backscattered as well as the transmitted x-rays. The system will be described in detail, and sample images of a heavily loaded 8 foot wide ISO container will be presented. Environmental radiation due to the x-rays scattered from the cargo itself will be discussed in the context of the tradeoffs between penetration, spatial resolution, x-ray energy, and x-ray flux.

Paper Details

Date Published: 18 December 2000
PDF: 6 pages
Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); doi: 10.1117/12.410560
Show Author Affiliations
William Wade Sapp, American Science & Engineering (United States)
Peter J. Rothschild, American Science & Engineering (United States)
Richard L. Schueller, American Science & Engineering (United States)
Andrey Mishin, American Science & Engineering (United States)

Published in SPIE Proceedings Vol. 4142:
Penetrating Radiation Systems and Applications II
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Edward J. Morton, Editor(s)

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