An Edge Rotation and Temperature Diagnostic on NSTX

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Description

A new diagnostic for the National Spherical Torus Experiment (NSTX) is described whose function is to measure ion rotation and temperature at the plasma edge. The diagnostic is sensitive to C III, C IV, and He II intrinsic emission, covering a radial region of 15 cm at the extreme edge of the outboard midplane. Thirteen chords are distributed between toroidal and poloidal views, allowing the toroidal and poloidal rotation and temperature of the plasma edge to be simultaneously measured with 10 ms resolution. Combined with the local pressure gradient and the EFIT code reconstructed magnetic field profile, the edge flow ... continued below

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1.3 MB pages

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Biewer, T.M.; Bell, R.E.; Feder, R.; Johnson, D.W. & Palladino, R.W. August 29, 2003.

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Description

A new diagnostic for the National Spherical Torus Experiment (NSTX) is described whose function is to measure ion rotation and temperature at the plasma edge. The diagnostic is sensitive to C III, C IV, and He II intrinsic emission, covering a radial region of 15 cm at the extreme edge of the outboard midplane. Thirteen chords are distributed between toroidal and poloidal views, allowing the toroidal and poloidal rotation and temperature of the plasma edge to be simultaneously measured with 10 ms resolution. Combined with the local pressure gradient and the EFIT code reconstructed magnetic field profile, the edge flow gives a measure of the local radial electric field.

Physical Description

1.3 MB pages

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INIS; OSTI as DE00814754

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  • Other Information: PBD: 29 Aug 2003

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  • Report No.: PPPL-3862
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/814754 | External Link
  • Office of Scientific & Technical Information Report Number: 814754
  • Archival Resource Key: ark:/67531/metadc736985

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • August 29, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • April 15, 2016, 9:58 p.m.

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Biewer, T.M.; Bell, R.E.; Feder, R.; Johnson, D.W. & Palladino, R.W. An Edge Rotation and Temperature Diagnostic on NSTX, report, August 29, 2003; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc736985/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.