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Influence of the radio frequency ponderomotive force on anomalous impurity transport in tokamaks
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10.1063/1.2908354
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Affiliations:
1 Department of Radio and Space Science, Chalmers University of Technology, Euratom-VR Association, SE-412 96 Göteborg, Sweden
2 Institute for Plasma Research, Bhat, Gandhinagar-382 428, India
3 Association Euratom-CEA, CEA/DSM/IRFM CEA-Cadarache, France
4 Department of Applied Mathematics, University of Sheffield, Hicks Building, Hounsfield Road, S3 7RH Sheffield, United Kingdom
5 Institute for Plasma Physics, Forschungszentrum Jülich GmbH, Association FZJ-Euratom, 52425, Jülich, Germany
Phys. Plasmas 15, 042316 (2008)
/content/aip/journal/pop/15/4/10.1063/1.2908354
http://aip.metastore.ingenta.com/content/aip/journal/pop/15/4/10.1063/1.2908354
View: Figures

## Figures

FIG. 1.

Simulated squared magnitude of the perpendicular electric field in the equatorial midplane for ICRF hydrogen minority heating in deuterium plasma (H)D for a typical JET case. The main parameters of the simulation were as follows: , , , . The hydrogen cyclotron resonance location was about on the high-field side of the magnetic axis. The square of the field is given for of absorbed power, and it is linear in power.

FIG. 2.

Impurity diffusion coefficient , impurity convective velocity (in units of ), and normalized impurity density peaking factor as a function of the ICRF ponderomotive force term for an ITG mode dominated case. The parameters are , , , , , , and .

FIG. 3.

Impurity diffusion coefficient , impurity convective velocity (in units of ), and normalized impurity density peaking factor as a function of the ICRF ponderomotive force term for a TE mode dominated case. The parameters are , , , , , , , and .

FIG. 4.

Scaling of impurity diffusion coefficient , impurity convective velocity (in units of ), and normalized impurity density peaking factor with ion temperature gradient . The other parameters are the same as in Fig. 2 with , , , , , , and with ponderomotive force term .

FIG. 5.

(a) Scaling of impurity diffusion coefficient , impurity convective velocity (in units of ), and normalized impurity density peaking factor with electron density gradient parameter . The other parameters are the same as in Fig. 2 with , , , , , and , with ponderomotive force term . (b) Scaling of impurity diffusion coefficient , impurity convective velocity (in units of ), and normalized impurity density peaking factor with impurity charge . The other parameters are the same as in Fig. 2 with , , , , , , and , with ponderomotive force term .

/content/aip/journal/pop/15/4/10.1063/1.2908354
2008-04-30
2014-04-17

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