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Digitale Medien

Parametric study of electron density profile evolution following injection in TFTR (1986)

Park, H. K. ; Mansfield, D. K. ; Johnson, L. C.

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 57 (1986), S. 1999-1999

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Details

ISSN: 1089-7623

Quelle: AIP Digital Archive

Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: Recent results from tokamak fusion test reactor (TFTR)1 pellet experiments have extended previous results to a larger volume and longer time scales. In this paper, the detailed study of electron density profile response following pellet injection is discussed. In particular, hollow density profiles with relatively long relaxation times (10–100 ms) from inverted gradients are obtained by injection of 2.67-mm-diam pellets, which penetrate to r(approximately-equal-to)a/2. Strongly peaked profiles [ne(0)/n¯e∼3] and central electron density ∼3.9×1020 m−3 are obtained by injection of three pellets, which penetrate to or beyond the magnetic axis. In both cases, the pellet mass is well accounted for by the measured density perturbation. This work was supported by U.S. DOE Contract No. DE-AC02-CHO-3073.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1138769

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