Nuclear waste drum characterization with 2 MeV x-ray and gamma-ray tomography

Richard T. Bernardi; Harry E. Martz

doi:10.1117/12.211897

15 June 1995 Nuclear waste drum characterization with 2 MeV x-ray and gamma-ray tomography

Richard T. Bernardi, Harry E. Martz

Proceedings Volume 2519, X-Ray and Ultraviolet Sensors and Applications; (1995) https://doi.org/10.1117/12.211897
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

This paper describes the progress of a multi-modality (three detector type) system for x-rays and gamma-rays developed for the waste inspection tomography (WIT) program. WIT provides mobile semi-trailer mounted nondestructive examination (NDE) and assay (NDA) for nuclear waste drum characterization. WIT uses various computed tomography (CT) methods for both NDE and NDA of nuclear waste drums. Without opening waste drums, WIT inspects and characterizes radioactive waste, including low level (LLW), transuranic (TRU), and mixed waste. With externally transmitted x-ray NDE techniques, WIT has the ability to identify high density waste materials like heavy metals, define drum contents in 2D and 3D space, quantify free liquid volumes through density and x-ray attenuation coefficient discrimination, and measure drum wall thickness. With waste emitting gamma-ray NDA techniques, WIT can locate gamma emitting radioactive sources in 2D and 3D space, identify gamma emitting isotopic species, identify gamma emitting isotopic species, identify the extermal activity approximations, and provide the data needed for waste classification as LLW or TRU.

Citation Download Citation

Richard T. Bernardi and Harry E. Martz "Nuclear waste drum characterization with 2 MeV x-ray and gamma-ray tomography", Proc. SPIE 2519, X-Ray and Ultraviolet Sensors and Applications, (15 June 1995); https://doi.org/10.1117/12.211897

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