Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 546-550 |
| Journal | Journal of Nuclear Materials |
| Volume | 463 |
| DOIs | |
| Publication status | Published - 2015 |
| MoE publication type | A1 Journal article-refereed |
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Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade. / Aho-Mantila, L. (Corresponding Author); Bonnin, X.; Coster, D.P.; Lowry, C.; Wischmeier, M.; Brezinsek, S.; Federici, G.; Team, ASDEX Upgrade; Contributors, JET-EFDA.
In: Journal of Nuclear Materials, Vol. 463, 2015, p. 546-550.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Model-based radiation scalings for the ITER-like divertors of JET and ASDEX Upgrade
AU - Aho-Mantila, L.
AU - Bonnin, X.
AU - Coster, D.P.
AU - Lowry, C.
AU - Wischmeier, M.
AU - Brezinsek, S.
AU - Federici, G.
AU - Team, ASDEX Upgrade
AU - Contributors, JET-EFDA
PY - 2015
Y1 - 2015
N2 - Effects of N-seeding in L-mode experiments in ASDEX Upgrade and JET are analysed numerically with the SOLPS5.0 code package. The modelling yields 3 qualitatively different radiative regimes with increasing N concentration, when initially attached outer divertor conditions are studied. The radiation pattern is observed to evolve asymmetrically, with radiation increasing first in the inner divertor, then in the outer divertor, and finally on closed field lines above the X-point. The properties of these radiative regimes are observed to be sensitive to cross-field drifts and they differ between the two devices. The modelled scaling of the divertor radiated power with the divertor neutral pressure is similar to an experimental scaling law for H-mode radiation. The same parametric dependencies are not observed in simulations without drifts.
AB - Effects of N-seeding in L-mode experiments in ASDEX Upgrade and JET are analysed numerically with the SOLPS5.0 code package. The modelling yields 3 qualitatively different radiative regimes with increasing N concentration, when initially attached outer divertor conditions are studied. The radiation pattern is observed to evolve asymmetrically, with radiation increasing first in the inner divertor, then in the outer divertor, and finally on closed field lines above the X-point. The properties of these radiative regimes are observed to be sensitive to cross-field drifts and they differ between the two devices. The modelled scaling of the divertor radiated power with the divertor neutral pressure is similar to an experimental scaling law for H-mode radiation. The same parametric dependencies are not observed in simulations without drifts.
U2 - 10.1016/j.jnucmat.2014.11.049
DO - 10.1016/j.jnucmat.2014.11.049
M3 - Article
VL - 463
SP - 546
EP - 550
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
ER -