Effect of progressively increasing lithium conditioning on edge transport and stability in high triangularity NSTX H-modes

Maingi, R.; Canik, J.M.; Bell, R.E.; Boyle, D.P.; Diallo, A.; Kaita, R.; Kaye, S.M.; LeBlanc, B.P.; Sabbagh, S.A.; Scotti, F.; Soukhanovskii, V.A.
Issue date: August 2016
Cite as:
Maingi, R., Canik, J.M., Bell, R.E., Boyle, D.P., Diallo, A., Kaita, R., Kaye, S.M., LeBlanc, B.P., Sabbagh, S.A., Scotti, F., & Soukhanovskii, V.A. (2016). Effect of progressively increasing lithium conditioning on edge transport and stability in high triangularity NSTX H-modes [Data set]. Princeton Plasma Physics Laboratory, Princeton University.
@electronic{maingi_r_2016,
  author      = {Maingi, R. and
                Canik, J.M. and
                Bell, R.E. and
                Boyle, D.P. and
                Diallo, A. and
                Kaita, R. and
                Kaye, S.M. and
                LeBlanc, B.P. and
                Sabbagh, S.A. and
                Scotti, F. and
                Soukhanovskii, V.A.},
  title       = {{Effect of progressively increasing lithi
                um conditioning on edge transport and st
                ability in high triangularity NSTX H-mod
                es}},
  publisher   = {{Princeton Plasma Physics Laboratory, Pri
                nceton University}},
  year        = 2016
}
Abstract:

A sequence of H-mode discharges with increasing levels of pre-discharge lithium evaporation (�dose�) was conducted in high triangularity and elongation boundary shape in NSTX. Energy confinement increased, and recycling decreased with increasing lithium dose, similar to a previous lithium dose scan in medium triangularity and elongation plasmas. Data-constrained SOLPS interpretive modeling quantified the edge transport change: the electron particle diffusivity decreased by 10-30x. The electron thermal diffusivity decreased by 4x just inside the top of the pedestal, but increased by up to 5x very near the separatrix. These results provide a baseline expectation for lithium benefits in NSTX-U, which is optimized for a boundary shape similar to the one in this experiment.

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Authors Maingi, R.
Canik, J.M.
Bell, R.E.
Boyle, D.P.
Diallo, A.
Kaita, R.
Kaye, S.M.
LeBlanc, B.P.
Sabbagh, S.A.
Scotti, F.
Soukhanovskii, V.A.
Domains Natural Sciences
Communities Spherical Torus, Princeton Plasma Physics Laboratory
Subcommunities Spherical Torus
Collection Tags NSTX
Date Accessioned 31 August 2016
Issue date August 2016
URI http://arks.princeton.edu/ark:/88435/dsp01h128nh17k
Table of Contents readme and data files
Language en_US
Publisher Princeton Plasma Physics Laboratory, Princeton University
Relation Fusion Engineering and Design
Type Dataset
Funding Agency U. S. Department of Energy contract number DE-AC02-09CH11466
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