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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.
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ANS Student Conference 2025
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General Kenneth Nichols and the Manhattan Project
Nichols
The Oak Ridger has published the latest in a series of articles about General Kenneth D. Nichols, the Manhattan Project, and the 1954 Atomic Energy Act. The series has been produced by Nichols’ grandniece Barbara Rogers Scollin and Oak Ridge (Tenn.) city historian David Ray Smith. Gen. Nichols (1907–2000) was the district engineer for the Manhattan Engineer District during the Manhattan Project.
As Smith and Scollin explain, Nichols “had supervision of the research and development connected with, and the design, construction, and operation of, all plants required to produce plutonium-239 and uranium-235, including the construction of the towns of Oak Ridge, Tennessee, and Richland, Washington. The responsibility of his position was massive as he oversaw a workforce of both military and civilian personnel of approximately 125,000; his Oak Ridge office became the center of the wartime atomic energy’s activities.”
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.