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The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
R. B. Walton, E. I. Whitted, R. A. Forster
Nuclear Technology | Volume 24 | Number 1 | October 1974 | Pages 81-92
Technical Paper | Instrument | doi.org/10.13182/NT74-A31463
Articles are hosted by Taylor and Francis Online.
A method based on the detection of 0.767- and 1.001-MeV gamma rays from 234mPa has been developed for the assay of 238U in large containers of uranium waste. Detailed calibration and assay procedures were obtained for × 4- × 4-ft plywood boxes of combustible waste. The gamma rays were detected with a large NaI crystal and a line-source “standard” box was used for calibration. The calibration was extended over a wide range of box weights using Monte Carlo calculations of gamma-ray attenuation. The error in the calibration is <6% (2σ); much larger assay errors can result from heterogeneities in the waste and from the age dependence of the 238U daughters. The detection limit for a 5-min count is about 30 g 238U in a typical box of combustibles. Data generated for the box problem, together with additional Monte Carlo calculations, were used to devise a simple analytical model applicable for the assay of boxes and cylinders in a range of practical geometries. The essential feature of this model is a flux buildup factor which accounts for Compton-scattered photons.