The effect of transient density profile shaping on transport in large stellarators and heliotrons

A. Dinklage, R. Sakamoto, M. Yokoyama, K. Ida, J. Baldzuhn, C. D. Beidler, S. Cats, K.J. Mc Carthy, J. Geiger, M. Kobayashi, H. Maaßberg, S. Morita, G. Motojima, M. Nakata, M. Nunami, N. Pablant, K. Ogawa, J.H.E. Proll, S. Satake, K. Tanaka & 6 andere F. Warmer, R.C. Wolf, P. Xanthopoulos, H. Yamada, R. Yasuhara, M. Yoshinuma

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

3 Citaties (Scopus)

Uittreksel

Transport studies of pellet fuelling experiments on LHD are reported. Spatio-temporal evolutions after pellet injection into LHD discharges show cases where central density increases on the time scale of particle transport processes. Both the temperature gradient and the density gradient change during the density relaxation, the latter even in sign. The resulting thermodynamic forces influence radial electric fields - both as a driving term but also by, e.g. affecting the E r dependence of ion transport. Magnetic fluctuations have been found to be induced by pellet injection but die out with the relaxation of the pressure profile.

TaalEngels
Artikelnummer066016
Aantal pagina's6
TijdschriftNuclear Fusion
Volume57
Nummer van het tijdschrift6
DOI's
StatusGepubliceerd - 20 apr 2017

Vingerafdruk

heliotrons
stellarators
pellets
profiles
injection
refueling
temperature gradients
gradients
thermodynamics
electric fields
ions

Trefwoorden

    Citeer dit

    Dinklage, A., Sakamoto, R., Yokoyama, M., Ida, K., Baldzuhn, J., Beidler, C. D., ... Yoshinuma, M. (2017). The effect of transient density profile shaping on transport in large stellarators and heliotrons. Nuclear Fusion, 57(6), [066016]. DOI: 10.1088/1741-4326/aa6775
    Dinklage, A. ; Sakamoto, R. ; Yokoyama, M. ; Ida, K. ; Baldzuhn, J. ; Beidler, C. D. ; Cats, S. ; Mc Carthy, K.J. ; Geiger, J. ; Kobayashi, M. ; Maaßberg, H. ; Morita, S. ; Motojima, G. ; Nakata, M. ; Nunami, M. ; Pablant, N. ; Ogawa, K. ; Proll, J.H.E. ; Satake, S. ; Tanaka, K. ; Warmer, F. ; Wolf, R.C. ; Xanthopoulos, P. ; Yamada, H. ; Yasuhara, R. ; Yoshinuma, M./ The effect of transient density profile shaping on transport in large stellarators and heliotrons. In: Nuclear Fusion. 2017 ; Vol. 57, Nr. 6.
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    title = "The effect of transient density profile shaping on transport in large stellarators and heliotrons",
    abstract = "Transport studies of pellet fuelling experiments on LHD are reported. Spatio-temporal evolutions after pellet injection into LHD discharges show cases where central density increases on the time scale of particle transport processes. Both the temperature gradient and the density gradient change during the density relaxation, the latter even in sign. The resulting thermodynamic forces influence radial electric fields - both as a driving term but also by, e.g. affecting the E r dependence of ion transport. Magnetic fluctuations have been found to be induced by pellet injection but die out with the relaxation of the pressure profile.",
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    author = "A. Dinklage and R. Sakamoto and M. Yokoyama and K. Ida and J. Baldzuhn and Beidler, {C. D.} and S. Cats and {Mc Carthy}, K.J. and J. Geiger and M. Kobayashi and H. Maa{\ss}berg and S. Morita and G. Motojima and M. Nakata and M. Nunami and N. Pablant and K. Ogawa and J.H.E. Proll and S. Satake and K. Tanaka and F. Warmer and R.C. Wolf and P. Xanthopoulos and H. Yamada and R. Yasuhara and M. Yoshinuma",
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    Dinklage, A, Sakamoto, R, Yokoyama, M, Ida, K, Baldzuhn, J, Beidler, CD, Cats, S, Mc Carthy, KJ, Geiger, J, Kobayashi, M, Maaßberg, H, Morita, S, Motojima, G, Nakata, M, Nunami, M, Pablant, N, Ogawa, K, Proll, JHE, Satake, S, Tanaka, K, Warmer, F, Wolf, RC, Xanthopoulos, P, Yamada, H, Yasuhara, R & Yoshinuma, M 2017, 'The effect of transient density profile shaping on transport in large stellarators and heliotrons' Nuclear Fusion, vol. 57, nr. 6, 066016. DOI: 10.1088/1741-4326/aa6775

    The effect of transient density profile shaping on transport in large stellarators and heliotrons. / Dinklage, A.; Sakamoto, R.; Yokoyama, M.; Ida, K.; Baldzuhn, J.; Beidler, C. D.; Cats, S.; Mc Carthy, K.J.; Geiger, J.; Kobayashi, M.; Maaßberg, H.; Morita, S.; Motojima, G.; Nakata, M.; Nunami, M.; Pablant, N.; Ogawa, K.; Proll, J.H.E.; Satake, S.; Tanaka, K.; Warmer, F.; Wolf, R.C.; Xanthopoulos, P.; Yamada, H.; Yasuhara, R.; Yoshinuma, M.

    In: Nuclear Fusion, Vol. 57, Nr. 6, 066016, 20.04.2017.

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    TY - JOUR

    T1 - The effect of transient density profile shaping on transport in large stellarators and heliotrons

    AU - Dinklage,A.

    AU - Sakamoto,R.

    AU - Yokoyama,M.

    AU - Ida,K.

    AU - Baldzuhn,J.

    AU - Beidler,C. D.

    AU - Cats,S.

    AU - Mc Carthy,K.J.

    AU - Geiger,J.

    AU - Kobayashi,M.

    AU - Maaßberg,H.

    AU - Morita,S.

    AU - Motojima,G.

    AU - Nakata,M.

    AU - Nunami,M.

    AU - Pablant,N.

    AU - Ogawa,K.

    AU - Proll,J.H.E.

    AU - Satake,S.

    AU - Tanaka,K.

    AU - Warmer,F.

    AU - Wolf,R.C.

    AU - Xanthopoulos,P.

    AU - Yamada,H.

    AU - Yasuhara,R.

    AU - Yoshinuma,M.

    PY - 2017/4/20

    Y1 - 2017/4/20

    N2 - Transport studies of pellet fuelling experiments on LHD are reported. Spatio-temporal evolutions after pellet injection into LHD discharges show cases where central density increases on the time scale of particle transport processes. Both the temperature gradient and the density gradient change during the density relaxation, the latter even in sign. The resulting thermodynamic forces influence radial electric fields - both as a driving term but also by, e.g. affecting the E r dependence of ion transport. Magnetic fluctuations have been found to be induced by pellet injection but die out with the relaxation of the pressure profile.

    AB - Transport studies of pellet fuelling experiments on LHD are reported. Spatio-temporal evolutions after pellet injection into LHD discharges show cases where central density increases on the time scale of particle transport processes. Both the temperature gradient and the density gradient change during the density relaxation, the latter even in sign. The resulting thermodynamic forces influence radial electric fields - both as a driving term but also by, e.g. affecting the E r dependence of ion transport. Magnetic fluctuations have been found to be induced by pellet injection but die out with the relaxation of the pressure profile.

    KW - density control

    KW - fueling

    KW - heliotrons

    KW - stellarators

    UR - http://www.scopus.com/inward/record.url?scp=85019493248&partnerID=8YFLogxK

    U2 - 10.1088/1741-4326/aa6775

    DO - 10.1088/1741-4326/aa6775

    M3 - Article

    VL - 57

    JO - Nuclear Fusion

    T2 - Nuclear Fusion

    JF - Nuclear Fusion

    SN - 0029-5515

    IS - 6

    M1 - 066016

    ER -

    Dinklage A, Sakamoto R, Yokoyama M, Ida K, Baldzuhn J, Beidler CD et al. The effect of transient density profile shaping on transport in large stellarators and heliotrons. Nuclear Fusion. 2017 apr 20;57(6). 066016. Beschikbaar vanaf, DOI: 10.1088/1741-4326/aa6775