New low-dose 1-MeV cargo inspection system with backscatter imaging

William Wade Sapp Jr.; Peter J. Rothschild; Richard L. Schueller; Andrey Mishin

doi:10.1117/12.410560

18 December 2000 New low-dose 1-MeV cargo inspection system with backscatter imaging

William Wade Sapp Jr., Peter J. Rothschild, Richard L. Schueller, Andrey Mishin

Proceedings Volume 4142, Penetrating Radiation Systems and Applications II; (2000) https://doi.org/10.1117/12.410560
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

William Wade Sapp Jr., Peter J. Rothschild, Richard L. Schueller, and Andrey Mishin "New low-dose 1-MeV cargo inspection system with backscatter imaging", Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); https://doi.org/10.1117/12.410560

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