Dimensionless collisionality scans for core particle transport in JET
Paper in proceeding, 2015

Density peaking increases in the inner core (r/a=0.3) from 0.3 to 2.7 and in the outer core (r/a=0.8) from 1.6 to 3.5 when ν∗ decreases from 0.47 to 0.09 in JET H-mode plasmas while density peaking does not depend on ν∗ in JET L-mode plasma. For this particular scan, experimental evidence indicates that a dominant part of this peaking originates from NBI fuelling and inward pinch is a subdominant fraction. This is supported by the simple linear runs with GYRO although much more work is needed here to make a conclusion. More discharges are needed to quantify more precisely the fractions of these two contributions and also much more work is required on the modelling front to make exact comparisons.

Author

T. Tala

Technical Research Centre of Finland (VTT)

P. Mantica

Culham Science Centre

A. Salmi

Technical Research Centre of Finland (VTT)

C. Bourdelle

The French Alternative Energies and Atomic Energy Commission (CEA)

C. Giroud

Culham Science Centre

J. Hillesheim

Culham Science Centre

C. Maggi

Culham Science Centre

L. Meneses

Instituto Superior Tecnico

M. Maslov

Culham Science Centre

S. Menmuir

Culham Science Centre

Sara Moradi

Laboratoire de physique des plasmas

Other publications Research

S. Mordijck

College of William and Mary

V. Naulin

Technical University of Denmark (DTU)

Hans Nordman

Chalmers, Earth and Space Sciences, Plasma Physics and Fusion Energy

Other publications Research

J. J. Rasmussen

Technical University of Denmark (DTU)

G. Sips

European Commission (EC)

A. Sirinelli

Culham Science Centre

M. Tsalas

Dutch Institute for Fundamental Energy Research (DIFFER)

H. Weisen

Swiss Federal Institute of Technology in Lausanne (EPFL)

42nd European Physical Society Conference on Plasma Physics, EPS 2015

42nd European Physical Society Conference on Plasma Physics, EPS 2015
Lisabon, Portugal,

Subject Categories

Fusion, Plasma and Space Physics

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12/2/2021

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