Physics Considerations in the Design of NCSX

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Compact stellarators have the potential to make steady-state, disruption-free magnetic fusion systems with beta approximately 5% and relatively low aspect ratio (R/<a> < 4.5) compared to most drift-optimized stellarators. Magnetic quasi-symmetry can be used to reduce orbit losses. The National Compact Stellarator Experiment (NCSX) is designed to test compact stellarator physics in a high-beta quasi-axisymmetric configuration and to determine the conditions for high-beta disruption-free operation. It is designed around a reference plasma with low ripple, good magnetic surfaces, and stability to the important ideal instabilities at beta approximately 4%. The device size, available heating power, and pulse lengths provide access ... continued below

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1.5 Megabytes pages

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Neilson, G.H.; Zarnstorff, M.C.; Ku, L.P.; Lazarus, E.A.; Mioduszewski, P.K.; Fenstermacher, M. et al. October 9, 2002.

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Compact stellarators have the potential to make steady-state, disruption-free magnetic fusion systems with beta approximately 5% and relatively low aspect ratio (R/<a> < 4.5) compared to most drift-optimized stellarators. Magnetic quasi-symmetry can be used to reduce orbit losses. The National Compact Stellarator Experiment (NCSX) is designed to test compact stellarator physics in a high-beta quasi-axisymmetric configuration and to determine the conditions for high-beta disruption-free operation. It is designed around a reference plasma with low ripple, good magnetic surfaces, and stability to the important ideal instabilities at beta approximately 4%. The device size, available heating power, and pulse lengths provide access to a high-beta target plasma state. The NCSX has magnetic flexibility to explore a wide range of equilibrium conditions and has operational flexibility to achieve a wide range of beta and collisionality values. The design provides space to accommodate plasma-facing components for divertor operation and ports for an extensive array of diagnostics.

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1.5 Megabytes pages

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INIS; OSTI as DE00809845

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  • Other Information: PBD: 9 Oct 2002

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  • Report No.: PPPL-3753
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/809845 | External Link
  • Office of Scientific & Technical Information Report Number: 809845
  • Archival Resource Key: ark:/67531/metadc735239

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  • October 9, 2002

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 18, 2016, 1:03 p.m.

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Neilson, G.H.; Zarnstorff, M.C.; Ku, L.P.; Lazarus, E.A.; Mioduszewski, P.K.; Fenstermacher, M. et al. Physics Considerations in the Design of NCSX, report, October 9, 2002; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc735239/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.