Evaluation of Possible Nuclear Magnetic Resonance Diagnostic Techniques for Tokamak Experiments

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Potential applications of nuclear magnetic resonance (NMR) diagnostic techniques to tokamak experiments are evaluated. NMR frequencies for hydrogen isotopes and low-Z nuclei in such experiments are in the frequency range approximately equal to 20-200 MHz, so existing RF [radio-frequency] antennas could be used to rotate the spin polarization and to make the NMR measurements. Our tentative conclusion is that such measurements are possible if highly spin polarized H or (superscript)3He gas sources (which exist) are used to fuel these plasmas. In addition, NMR measurements of the surface layers of the first wall (without plasma) may also be possible, e.g., to ... continued below

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179 Kilobytes pages

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Zweben, S. J.; Kornack, T. W.; Majeski, D.; Schilling, G.; Skinner, C. H. & Wilson, R. August 5, 2002.

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Potential applications of nuclear magnetic resonance (NMR) diagnostic techniques to tokamak experiments are evaluated. NMR frequencies for hydrogen isotopes and low-Z nuclei in such experiments are in the frequency range approximately equal to 20-200 MHz, so existing RF [radio-frequency] antennas could be used to rotate the spin polarization and to make the NMR measurements. Our tentative conclusion is that such measurements are possible if highly spin polarized H or (superscript)3He gas sources (which exist) are used to fuel these plasmas. In addition, NMR measurements of the surface layers of the first wall (without plasma) may also be possible, e.g., to evaluate the inventory of tritium inside the vessel.

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179 Kilobytes pages

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INIS; OSTI as DE00808381

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  • Other Information: PBD: 5 Aug 2002

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  • Report No.: PPPL-3734
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/808381 | External Link
  • Office of Scientific & Technical Information Report Number: 808381
  • Archival Resource Key: ark:/67531/metadc736492

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Office of Scientific & Technical Information Technical Reports

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  • August 5, 2002

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 15, 2016, 9:07 p.m.

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Zweben, S. J.; Kornack, T. W.; Majeski, D.; Schilling, G.; Skinner, C. H. & Wilson, R. Evaluation of Possible Nuclear Magnetic Resonance Diagnostic Techniques for Tokamak Experiments, report, August 5, 2002; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc736492/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.