ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
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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Nuclear Science and Engineering
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Nuclear Technology
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Fusion Science and Technology
Latest News
Construction begins on Kairos’s fluoride salt–cooled test reactor
Earlier today, on a site in Oak Ridge, Tenn., that was formerly home to the K-33 Gaseous Diffusion Plant, Kairos Power marked the start of construction on its low-power demonstration reactor. Named Hermes, the 35-MWt test reactor claims status as the first Gen IV reactor to be approved for construction by the Nuclear Regulatory Commission and the first non–light water reactor to be permitted in the United States in more than 50 years.
E. A. Veshchev, L. Bertalot, S. Putvinski, M. Garcia-Munoz, S. W. Lisgo, C. S. Pitcher, R. A. Pitts, V. S. Udintsev, M. Walsh
Fusion Science and Technology | Volume 61 | Number 2 | February 2012 | Pages 172-184
Technical Paper by Monaco ITER Postdoctoral Fellows | First Joint ITER-IAEA Technical Meeting on Analysis of ITER Materials and Technologies | doi.org/10.13182/FST12-A13385
Articles are hosted by Taylor and Francis Online.
A feasibility study for a fast-ion-loss detector in ITER has been carried out. Taking into account the basic requirements for measuring magnetohydrodynamic (MHD)-induced fast-ion (fusion-born alpha particles and ions from external heating systems) losses and the harsh environments expected in ITER plasmas, a solution based on a reciprocating probe installed in an equatorial port is suggested. In agreement with previous studies, Monte Carlo simulations of alpha-particle load on the first wall in MHD quiescent plasmas indicate that the main losses will be concentrated below the midplane, in the region of blanket module (BM) 15 to BM 18. Orbit tracing and thermal analysis, including plasma photonic and particle fluxes together with nuclear heating, have been performed to estimate the most suitable measurement timing and position of the reciprocating probe, enabling the detection of escaping alpha particles with pitch angles from [approximately]0 to 85 deg. This large velocity space ensures the detection of escaping alpha particles on both passing and trapped orbits, allowing the study of the interaction between alpha particles and a rich variety of MHD instabilities.