Evaluation of Possible Nuclear Magnetic Resonance Diagnostic Techniques for Tokamak Experiments | Zendy

S.J. Zweben | Zendy; T. W. Kornack | Zendy; R. Majeski | Zendy; G. Schilling | Zendy; C.H. Skinner | Zendy; Robin Wilson | Zendy

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Evaluation of Possible Nuclear Magnetic Resonance Diagnostic Techniques for Tokamak Experiments

Author(s) -

S.J. Zweben,

T. W. Kornack,

R. Majeski,

G. Schilling,

C.H. Skinner,

Robin Wilson

Publication year - 2002

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/808381

Subject(s) - tokamak , nuclear magnetic resonance , polarization (electrochemistry) , radio frequency , isotope , nuclear physics , atomic physics , plasma , nuclear engineering , chemistry , physics , computer science , telecommunications , engineering

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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