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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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New coolants, new fuels: A new generation of university reactors
Here’s an easy way to make aging U.S. power reactors look relatively youthful: Compare them (average age: 43) with the nation’s university research reactors. The 25 operating today have been licensed for an average of about 58 years.
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.