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DOE nuclear cleanup costs, schedule delays continue to rise, GAO says
The Department of Energy’s Office of Environmental Management faces significant cost increases, schedule delays, and data management issues in completing nuclear waste cleanup projects, according to a new report from the U.S. Government Accountability Office.
J. W. Behrens, R. A. Schrack, C. D. Bowman
Nuclear Technology | Volume 51 | Number 1 | November 1980 | Pages 78-82
Technical Paper | Analysis | doi.org/10.13182/NT80-A32558
Articles are hosted by Taylor and Francis Online.
Resonance-neutron radiography is being developed at the National Bureau of Standards (NBS) for use in nondestructive evaluation (NDE) and assay (NDA) applications. To illustrate the method we determined the distribution and thickness of silver between two silver-brazed metal plates. The NBS electron Linac provided a pulsed source of epithermal neutrons. Neutron energy was determined using the time-of-flight technique. Neutrons were detected using a one-dimensional position-sensitive proportional counter containing 4 atm 3He, 6 atm argon, and 0.5 atm CO2 and having a spatial resolution of 5 mm. Transmission values, measured over the 5.2-eV resonance in 109Ag, were used to locate the silver. Simple area analysis of these values yielded the amount of silver that was present.