Enhanced energy confinement and performance in a low-recycling tokamak

R. Majeski; R. Doerner; T. Gray; R. Kaita; R. Maingi; D. Mansfield; J. Spaleta; V. Soukhanovskii; J. Timberlake; L. Zakharov

doi:10.1103/PhysRevLett.97.075002

Enhanced energy confinement and performance in a low-recycling tokamak

R. Majeski, R. Doerner, T. Gray, R. Kaita, R. Maingi, D. Mansfield, J. Spaleta, V. Soukhanovskii, J. Timberlake, L. Zakharov

PPPL Tokamak Expermntl Science

Research output: Contribution to journal › Article › peer-review

143 Scopus citations

Abstract

Extensive lithium wall coatings and liquid lithium plasma-limiting surfaces reduce recycling, with dramatic improvements in Ohmic plasma discharges in the Current Drive Experiment-Upgrade. Global energy confinement times increase by up to 6 times. These results exceed confinement scalings such as ITER98P(y; 1) by 2-3 times, and represent the largest increase in energy confinement ever observed for an Ohmic tokamak plasma. Measurements of D_α emission indicate that global recycling coefficients decrease to approximately 0.3, the lowest documented for a magnetically confined hydrogen plasma.

Original language	English (US)
Article number	075002
Journal	Physical review letters
Volume	97
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.97.075002
State	Published - 2006

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.97.075002

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title = "Enhanced energy confinement and performance in a low-recycling tokamak",

abstract = "Extensive lithium wall coatings and liquid lithium plasma-limiting surfaces reduce recycling, with dramatic improvements in Ohmic plasma discharges in the Current Drive Experiment-Upgrade. Global energy confinement times increase by up to 6 times. These results exceed confinement scalings such as ITER98P(y; 1) by 2-3 times, and represent the largest increase in energy confinement ever observed for an Ohmic tokamak plasma. Measurements of Dα emission indicate that global recycling coefficients decrease to approximately 0.3, the lowest documented for a magnetically confined hydrogen plasma.",

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AU - Majeski, R.

AU - Doerner, R.

AU - Gray, T.

AU - Kaita, R.

AU - Maingi, R.

AU - Mansfield, D.

AU - Spaleta, J.

AU - Soukhanovskii, V.

AU - Timberlake, J.

AU - Zakharov, L.

PY - 2006

Y1 - 2006

N2 - Extensive lithium wall coatings and liquid lithium plasma-limiting surfaces reduce recycling, with dramatic improvements in Ohmic plasma discharges in the Current Drive Experiment-Upgrade. Global energy confinement times increase by up to 6 times. These results exceed confinement scalings such as ITER98P(y; 1) by 2-3 times, and represent the largest increase in energy confinement ever observed for an Ohmic tokamak plasma. Measurements of Dα emission indicate that global recycling coefficients decrease to approximately 0.3, the lowest documented for a magnetically confined hydrogen plasma.

AB - Extensive lithium wall coatings and liquid lithium plasma-limiting surfaces reduce recycling, with dramatic improvements in Ohmic plasma discharges in the Current Drive Experiment-Upgrade. Global energy confinement times increase by up to 6 times. These results exceed confinement scalings such as ITER98P(y; 1) by 2-3 times, and represent the largest increase in energy confinement ever observed for an Ohmic tokamak plasma. Measurements of Dα emission indicate that global recycling coefficients decrease to approximately 0.3, the lowest documented for a magnetically confined hydrogen plasma.

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ER -

Enhanced energy confinement and performance in a low-recycling tokamak

Abstract

All Science Journal Classification (ASJC) codes

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