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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
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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Fusion Science and Technology
Latest News
Taking shape: Fusion energy ecosystems built with public-private partnerships
It’s possible to describe fusion in simple terms: heat and squeeze small atoms to get abundant clean energy. But there’s nothing simple about getting fusion ready for the grid.
Private developers, national lab and university researchers, suppliers, and end users working toward that goal are developing a range of complex technologies to reach fusion temperatures and pressures, confounded by science and technology gaps linked to plasma behavior; materials, diagnostics, and electronics for extreme environments; fuel cycle sustainability; and economics.
S. Bhandarkar, T. Parham, J. Fair
Fusion Science and Technology | Volume 59 | Number 1 | January 2011 | Pages 51-57
Technical Paper | Nineteenth Target Fabrication Meeting | doi.org/10.13182/FST10-3718
Articles are hosted by Taylor and Francis Online.
For the various tuning as well as ignition campaigns, targets on the National Ignition Facility (NIF) need to be filled with gases, typically with the different isotopes of H2 and He. Fill tubes that supply the two small chambers in the target, the capsule and the hohlraum, are microcapillaries that are only tens of microns in diameter and present significant impedance to flow. Knowledge of the exact pressures and gas compositions in the capsule and the hohlraum is critical for fielding targets on NIF. This requires modeling of the gas flow through the capillary tubes, at both room temperature and cryogenic temperatures. We present results from a comprehensive model and its experimental verification for a range of conditions such as temperature and pressure.