Assessment of effects of neutrals on the power threshold for L to H transitions in DIII-D

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Description

To assess the effect of edge neutrals on the low-to-high confinement transition threshold, a broad range of plasma discharges has been analyzed. From this analysis, the transition power divided by the density, at constant magnetic field, appears to be a function of a single parameter measuring the neutrals` effect. This results suggest that there is a missing parameter linked to the neutrals in the power threshold scaling laws.

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5 p.

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Owen, L. W.; Carreras, B. A.; Maingi, R.; Mioduszewski, P. K.; Carlstrom, T. N. & Groebner, R. J. November 1, 1998.

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Description

To assess the effect of edge neutrals on the low-to-high confinement transition threshold, a broad range of plasma discharges has been analyzed. From this analysis, the transition power divided by the density, at constant magnetic field, appears to be a function of a single parameter measuring the neutrals` effect. This results suggest that there is a missing parameter linked to the neutrals in the power threshold scaling laws.

Physical Description

5 p.

Notes

INIS; OSTI as DE99000224

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  • 4. international conference on engineering structural integrity assessment, Cambridge (United Kingdom), 22-24 Sep 1998

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  • Other: DE99000224
  • Report No.: ORNL/CP--99185
  • Report No.: CONF-980915--
  • Grant Number: AC05-96OR22464;AC03-89ER51114
  • Office of Scientific & Technical Information Report Number: 296746
  • Archival Resource Key: ark:/67531/metadc684889

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  • November 1, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Aug. 1, 2016, 6:50 p.m.

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Owen, L. W.; Carreras, B. A.; Maingi, R.; Mioduszewski, P. K.; Carlstrom, T. N. & Groebner, R. J. Assessment of effects of neutrals on the power threshold for L to H transitions in DIII-D, article, November 1, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc684889/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.