High spatial resolution Thomson scattering at RTP : measurement of Te Filaments

M.N.A. Beurskens, N.J. Lopes Cardozo, J.B.A.M. Arends, C.J. Barth, H.J. Meiden, van der

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Abstract

In the Rijnhuizen Tokamak project filamentation of the electron temperature has been observed in additionally heated discharges applying electron cyclotron heating. Fila ments are sharp peaks on the electron temperature with an amplitude of up to 1 keV in a 2 keV ambient plasma and a width of 5—10 mm. They are observed with a high resolu tion double pulse Thomson scattering diagnostic. Filaments are statistically significant structures. Experiments show that it is likely that filaments are periodic structures with a m/n=1 or higher order periodicity.
Original languageEnglish
Title of host publicationProceedings of the 9th International Symposium on Laser-aided Plasma Diagnostics
EditorsH.F. Doebele, K. Muraoka
Pages351-356
Publication statusPublished - 1999
Event9th International Symposium on Laser-Aided Plasma Diagnostics (LAPD9), September 26-October 1, 1999, Lake Tahoe, CA, USA - Lake Tahoe, CA, United States
Duration: 26 Sep 19991 Oct 1999

Conference

Conference9th International Symposium on Laser-Aided Plasma Diagnostics (LAPD9), September 26-October 1, 1999, Lake Tahoe, CA, USA
Abbreviated titleLAPD9
CountryUnited States
CityLake Tahoe, CA
Period26/09/991/10/99

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