Engineering design of the National Spherical Torus Experiment

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Description

NSTX is a proof-of-principle experiment aimed at exploring the physics of the ``spherical torus'' (ST) configuration, which is predicted to exhibit more efficient magnetic confinement than conventional large aspect ratio tokamaks, amongst other advantages. The low aspect ratio (R/a, typically 1.2--2 in ST designs compared to 4--5 in conventional tokamaks) decreases the available cross sectional area through the center of the torus for toroidal and poloidal field coil conductors, vacuum vessel wall, plasma facing components, etc., thus increasing the need to deploy all components within the so-called ``center stack'' in the most efficient manner possible. Several unique design features have ... continued below

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10.6 Megabytes pages

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Neumeyer, C.; Heitzenroeder, P.; J. Spitzer, J. Chrzanowski & al, et May 11, 2000.

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Description

NSTX is a proof-of-principle experiment aimed at exploring the physics of the ``spherical torus'' (ST) configuration, which is predicted to exhibit more efficient magnetic confinement than conventional large aspect ratio tokamaks, amongst other advantages. The low aspect ratio (R/a, typically 1.2--2 in ST designs compared to 4--5 in conventional tokamaks) decreases the available cross sectional area through the center of the torus for toroidal and poloidal field coil conductors, vacuum vessel wall, plasma facing components, etc., thus increasing the need to deploy all components within the so-called ``center stack'' in the most efficient manner possible. Several unique design features have been developed for the NSTX center stack, and careful engineering of this region of the machine, utilizing materials up to their engineering allowables, has been key to meeting the desired objectives. The design and construction of the machine has been accomplished in a rapid and cost effective manner thanks to the availability of extensive facilities, a strong experience base from the TFTR era, and good cooperation between institutions.

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10.6 Megabytes pages

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INIS; OSTI as DE00755357

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  • Other Information: PBD: 11 May 2000

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  • Report No.: PPPL-3446
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/755357 | External Link
  • Office of Scientific & Technical Information Report Number: 755357
  • Archival Resource Key: ark:/67531/metadc703798

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  • May 11, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 15, 2016, 7:23 p.m.

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Neumeyer, C.; Heitzenroeder, P.; J. Spitzer, J. Chrzanowski & al, et. Engineering design of the National Spherical Torus Experiment, report, May 11, 2000; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc703798/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.