Fusion reactivity, confinement, and stability of neutral-beam heated plasmas in TFTR and other tokamaks

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The hypothesis that the heating beam fueling profile shape connects the edge condition and improved core confinement and fusion reactivity is extensively studied on TFTR and applied to other tokamaks. The derived absolute scalings based on beam fueling profile shape for the stored energy and neutron yield can be applied to the deuterium discharges at different major radii in TFTR. These include Supershot, High poloidal beta, L-mode, and discharges with a reversed shear (RS) magnetic configuration. These scalings are also applied to deuterium-tritium discharges. The role of plasma parameters, such as plasma current, Isdo2(p), edge safety factor, qsdo5(a), and toroidal ... continued below

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32 p.

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Park, Hyeon, K. & Sabbagh, S.A. May 1, 1996.

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Description

The hypothesis that the heating beam fueling profile shape connects the edge condition and improved core confinement and fusion reactivity is extensively studied on TFTR and applied to other tokamaks. The derived absolute scalings based on beam fueling profile shape for the stored energy and neutron yield can be applied to the deuterium discharges at different major radii in TFTR. These include Supershot, High poloidal beta, L-mode, and discharges with a reversed shear (RS) magnetic configuration. These scalings are also applied to deuterium-tritium discharges. The role of plasma parameters, such as plasma current, Isdo2(p), edge safety factor, qsdo5(a), and toroidal field, Bsdo2(T), in the performance and stability of the discharges is explicitly studied. Based on practical and externally controllable plasma parameters, the limitation and optimization of fusion power production of the present TFTR is investigated and a path for a discharge condition with fusion power gain, Q > 1 is suggested based on this study. Similar physics interpretation is provided for beam heated discharges on other major tokamaks.

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32 p.

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INIS; OSTI as DE96012068

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  • Other Information: PBD: May 1996

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  • Other: DE96012068
  • Report No.: PPPL--3183
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/245556 | External Link
  • Office of Scientific & Technical Information Report Number: 245556
  • Archival Resource Key: ark:/67531/metadc666814

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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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  • May 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 15, 2016, 5:32 p.m.

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Park, Hyeon, K. & Sabbagh, S.A. Fusion reactivity, confinement, and stability of neutral-beam heated plasmas in TFTR and other tokamaks, report, May 1, 1996; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc666814/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.