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
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
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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
January 2025
Nuclear Technology
Fusion Science and Technology
Latest News
Christmas Night
Twas the night before Christmas when all through the houseNo electrons were flowing through even my mouse.
All devices were plugged in by the chimney with careWith the hope that St. Nikola Tesla would share.
D. I. Brown, J. M. Tarrh
Fusion Science and Technology | Volume 10 | Number 3 | November 1986 | Pages 802-809
Impurity Control | Proceedings of the Seveth Topical Meeting on the Technology of Fusion Energy (Reno, Nevada, June 15–19, 1986) | doi.org/10.13182/FST86-A24838
Articles are hosted by Taylor and Francis Online.
In running TFTR, a desire to improve its capabilities naturally arises. One improvement under consideration is to increase the neutral beam pulse length thereby increasing plasma heating. One of the steps in achieving this is to reduce the heating of the ion dump collector plate by spreading out the neutral beam injector's ion beam impinging on it (Fig. 1). Finding an efficient way of doing this is the subject of the analysis described in this paper. The analysis consists of two major parts. One part, performed at MIT, covers the magnetic performance of the ion dump magnets. The second part, performed at Princeton, covers the particle trajectories and consequent spread patterns of the ion beams on the collector plates. This paper includes a description of the development of the computer models of the magnet, and a comparison of calculated and measured magnetic fields. A description of the approach for analysis of the particle trajectories is given, followed by a comparison of calculated trajectories with measured data. A discussion of the results of analyzing the performance of various alternate magnet configurations is included, followed by a qualitative analysis and discussion relating the numerically determined performance of the various magnet configurations to the basic design parameters in a fundamental manner.