Characterization of waste drums using nonintrusive active and passive computed tomography

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We have developed a data acquisition scanner for gamma-ray nondestructive assay (NDA) active and passive computed tomography (A&PCT) along with associated computational techniques for image reconstruction, analysis, and display. We are using this scanner to acquire data sets of mock-waste drums at Lawrence Livermore National Laboratory (LLNIL). In this paper, we discuss some issues associated with gamma-ray spectroscopy assay, NDA imaging, describe the design and construction of an NDA drum scanner and report on code development for image reconstruction. We also present representative A&PCT assay results of well characterized mock-waste drums. These preliminary results suggest that A&PCT imaging can be ... continued below

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34 p.

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Roberson, G.P.; Martz, H.E.; Decman, D.J.; Camp, D.C.; Azevedo, S.G. & Keto, E.R. August 1, 1994.

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Description

We have developed a data acquisition scanner for gamma-ray nondestructive assay (NDA) active and passive computed tomography (A&PCT) along with associated computational techniques for image reconstruction, analysis, and display. We are using this scanner to acquire data sets of mock-waste drums at Lawrence Livermore National Laboratory (LLNIL). In this paper, we discuss some issues associated with gamma-ray spectroscopy assay, NDA imaging, describe the design and construction of an NDA drum scanner and report on code development for image reconstruction. We also present representative A&PCT assay results of well characterized mock-waste drums. These preliminary results suggest that A&PCT imaging can be used to produce accurate absolute assays of radioactivity in real-waste drums.

Physical Description

34 p.

Notes

INIS; OSTI as DE95008830

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  • Nondestructive assay and nondestructive examination waste chracterization conference, Pocatello, ID (United States), 14-16 Feb 1994

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  • Other: DE95008830
  • Report No.: UCRL-JC--118317
  • Report No.: CONF-940216--8
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 39795
  • Archival Resource Key: ark:/67531/metadc674310

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  • August 1, 1994

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 16, 2016, 3:14 p.m.

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Roberson, G.P.; Martz, H.E.; Decman, D.J.; Camp, D.C.; Azevedo, S.G. & Keto, E.R. Characterization of waste drums using nonintrusive active and passive computed tomography, article, August 1, 1994; California. (digital.library.unt.edu/ark:/67531/metadc674310/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.