Dimensionless collisionality scans for core particle transport in JET

T. Tala, P. Mantica, A. Salmi, C. Bourdelle, C. Giroud, J. Hillesheim, C. Maggi, L. Meneses, M. Maslov, S. Menmuir, S. Moradi, S. Mordijck, V. Naulin, H. Nordman, J. Juul Rasmussen, G. Sips, A. Sirinelli, M. Tsalas, H. Weisen

    Research output: Contribution to conferenceConference articleScientificpeer-review

    1 Citation (Scopus)

    Abstract

    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.

    Original languageEnglish
    Publication statusPublished - 1 Jan 2015
    MoE publication typeNot Eligible
    Event42nd European Physical Society Conference on Plasma Physics, EPS 2015 - Centro Cultural de Belém (CCB), Lisbon, Portugal
    Duration: 22 Jun 201526 Jun 2015
    Conference number: 42
    https://www.ipfn.tecnico.ulisboa.pt/EPS2015/index.html (EPS 2015)

    Conference

    Conference42nd European Physical Society Conference on Plasma Physics, EPS 2015
    Abbreviated titleEPS 2015
    CountryPortugal
    CityLisbon
    Period22/06/1526/06/15
    Internet address

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    Cite this

    Tala, T., Mantica, P., Salmi, A., Bourdelle, C., Giroud, C., Hillesheim, J., Maggi, C., Meneses, L., Maslov, M., Menmuir, S., Moradi, S., Mordijck, S., Naulin, V., Nordman, H., Rasmussen, J. J., Sips, G., Sirinelli, A., Tsalas, M., & Weisen, H. (2015). Dimensionless collisionality scans for core particle transport in JET. Paper presented at 42nd European Physical Society Conference on Plasma Physics, EPS 2015, Lisbon, Portugal.