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Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
R. L. French, L. G. Mooney
Nuclear Technology | Volume 10 | Number 3 | March 1971 | Pages 348-365
Technical Paper | Radiation | doi.org/10.13182/NT71-A30969
Articles are hosted by Taylor and Francis Online.
Techniques were developed for applying the results of Straker’s recent discrete ordinates calculations of neutron transport in an air-over-ground geometry to predict the neutron -radiation environment produced by the detonation of nuclear weapons. Straker’s results include the spatial, energy, and angle distributions of neutrons at the air-ground interface from source neutrons in each of nine source-energy bands emitted from a point isotropic source 50 ft above the ground. The source-energy bands cover the range from 0.0033 to 15.0 MeV. The energy spectrum of the leakage neutrons from a particular weapon may be integrated over corresponding energy bands toob-tain source intensities which are then multiplied by the transport data for corresponding bands and summed over source energy. The results thus obtained are for Straker’s original air density of 1.1 x 10-3 g/cm3, but they may be sealed to other air densities by use of mass equivalent ranges. A satisfactory adjustment to source heights other than the 50-ft height used in the original calculations may be made with the “first-last collision method” if the source-detector separation is as much as 2 or 3 mean-free-paths (∼1000 ft). When folded with leakage spectra for numerous test devices and adjusted to the proper air density and burst height, Straker’s data give neutron-dose spatial distributions generally within 25% of those measured infield tests.