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BIBTEX RIS

H-mode threshold and confinement in helium and deuterium in ASDEX Upgrade

2009; IOP Publishing; Volume: 49; Issue: 6 Linguagem: Inglês

10.1088/0029-5515/49/6/062003

ISSN

1741-4326

Autores

F. Ryter, T. Pütterich, M. Reich, A. Scarabosio, E. Wolfrum, R. Fischer, M. Gemisic Adamov, N. Hicks, B. Kurzan, C. F. Maggi, R. Neu, V. Rohde, G. Tardini,

Tópico(s)

Superconducting Materials and Applications

Resumo

In 2008, experiments have been carried out in ASDEX Upgrade to compare Hmode power threshold and confinement time in helium and deuterium.A scan in magnetic field and a wide density variation indicate that the threshold power in the two gases is very similar.The density dependence of the threshold exhibits a clear minimum.Confinement in helium is about 30% lower than in deuterium, mainly due to the reduction of the ion density caused by Z=2 in helium.

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