TY - JOUR
T1 - Effect of external perturbation fields on divertor particle and heat loads during ELMs at JET
AU - Jachmich, S.
AU - Liang, Y.
AU - Arnoux, G.
AU - Eich, T.
AU - Fundamenski, W.
AU - Koslowski, H. R.
AU - Pitts, R. A.
PY - 2009/6/15
Y1 - 2009/6/15
N2 - Peak heat fluxes arriving at the JET-divertor during Type-I ELMs have been successfully reduced by applying externally magnetic perturbation fields. The ELM-frequency in these plasmas strongly increases, leading to smaller ELM-size. The concomitant density losses, known as pump-out effect, have been recovered using inboard divertor gas fuelling, albeit with a degradation of the energy confinement. Langmuir probe analysis has shown that the magnetic perturbation drastically reduces the ELM-peak heat flux mostly via a reduction in particle flux, but at the price of higher inter-ELM fluxes.
AB - Peak heat fluxes arriving at the JET-divertor during Type-I ELMs have been successfully reduced by applying externally magnetic perturbation fields. The ELM-frequency in these plasmas strongly increases, leading to smaller ELM-size. The concomitant density losses, known as pump-out effect, have been recovered using inboard divertor gas fuelling, albeit with a degradation of the energy confinement. Langmuir probe analysis has shown that the magnetic perturbation drastically reduces the ELM-peak heat flux mostly via a reduction in particle flux, but at the price of higher inter-ELM fluxes.
UR - http://www.scopus.com/inward/record.url?scp=67349157138&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2009.01.204
DO - 10.1016/j.jnucmat.2009.01.204
M3 - Article
AN - SCOPUS:67349157138
SN - 0022-3115
VL - 390-391
SP - 768
EP - 772
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1
ER -