ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Robotics & Remote Systems
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.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Latest News
X-energy, Dow apply to build an advanced reactor project in Texas
Dow and X-energy announced today that they have submitted a construction permit application to the Nuclear Regulatory Commission for a proposed advanced nuclear project in Seadrift, Texas. The project could begin construction later this decade, but only if Dow confirms “the ability to deliver the project while achieving its financial return targets.”
Christopher B. Azmeh, Kyle L. Walton, Tushar K. Ghosh, Sudarshan K. Loyalka, Dabir S. Viswanath, Robert V. Tompson
Nuclear Technology | Volume 195 | Number 1 | July 2016 | Pages 87-97
Technical Paper | doi.org/10.13182/NT15-54
Articles are hosted by Taylor and Francis Online.
For very-high-temperature reactors (VHTRs), the ability of structural components, specifically the reactor pressure vessel, to dissipate heat by radiation is an important design criterion. Thus, in selecting components for VHTR applications, it is necessary to measure the emissivity of all structural materials being considered. With the standard ASTM C835-06 test method, the total hemispherical emissivity of A387 Grade 91 steel, a leading candidate alloy for VHTR structural applications, was measured under four distinct surface conditions: (1) mild abrasion following electrical discharge machining, (2) increased surface roughness via sandblasting, (3) coating with NBG-18 graphite powder, and (4) oxidization in air. A detailed account of experimental methods and procedures, as well as the results of the total hemispherical emissivity measurements, are presented.
