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Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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
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
May 2025
Latest News
ANS designates Armour Research Foundation Reactor as Nuclear Historic Landmark
The American Nuclear Society presented the Illinois Institute of Technology with a plaque last week to officially designate the Armour Research Foundation Reactor a Nuclear Historic Landmark, following the Society’s decision to confer the status onto the reactor in September 2024.
R. Jiménez-Gómez, E. Ascasíbar, T. Estrada, I. García-Cortés, B. Van Milligen, A. López-Fraguas, I. Pastor, D. López-Bruna
Fusion Science and Technology | Volume 51 | Number 1 | January 2007 | Pages 20-30
Technical Paper | Stellarators | doi.org/10.13182/FST07-A1283
Articles are hosted by Taylor and Francis Online.
Magnetohydrodynamic instabilities in the TJ-II stellarator are being experimentally characterized in various plasma parameter regimes and heating scenarios. Magnetic field fluctuations data are collected, using various Mirnov coil sets distributed at different toroidal sectors of the vacuum vessel, with frequency resolution up to 1 MHz. Specific analysis is carried out with the signals from a poloidal array of 15 coils measuring poloidal magnetic field fluctuations. The appearance of low-frequency modes (some tens of kilohertz) in electron cyclotron heated plasmas depends on the rotational transform profile and plasma density. In neutral beam injection plasmas, high-frequency (150- to 300-kHz) modes have been found in plasmas with line densities in the range 0.6 × 1019 m-3 to 3 × 1019 m-3 and heated with on/off-axis electron cyclotron heating. They are good candidates for global Alfvén eigenmodes related to the low-order resonance n/m = 3/2.
