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.
| Taal | Engels |
|---|---|
| Artikelnummer | 066016 |
| Aantal pagina's | 6 |
| Tijdschrift | Nuclear Fusion |
| Volume | 57 |
| Nummer van het tijdschrift | 6 |
| DOI's | |
| Status | Gepubliceerd - 20 apr 2017 |
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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 tijdschrift › Tijdschriftartikel › Academic › peer 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 -