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The effect of lower...
The effect of lower hybrid waves on JET plasma rotation
- Article/chapterEnglish2017
Publisher, publication year, extent ...
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2016-12-22
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Institute of Physics Publishing (IOPP),2017
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-207989
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-207989URI
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https://doi.org/10.1088/1741-4326/aa4e54DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-399853URI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20170607
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For complete list of authors see http://dx.doi.org/10.1088/1741-4326/aa4e54
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This paper reports on observations of rotation in JET plasmas with lower hybrid current drive. Lower hybrid (LH) has a clear impact on rotation. The changes in core rotation can be either in the co- or counter-current directions. Experimental features that could determine the direction of rotation were investigated. Changes from co- to counter-rotation as the q-profile evolves from above unity to below unity suggests that magnetic shear could be important. However, LH can drive either co- or counter-rotation in discharges with similar magnetic shear and at the same plasma current. It is not clear if a slightly lower density is significant. A power scan at fixed density, shows a lower hybrid power threshold around 3 MW. For smaller LH powers, counter rotation increases with power, while for larger powers a trend towards co-rotation is found. The estimated counter-torque from the LH waves, would not explain the observed angular frequencies, neither would it explain the observation of co-rotation.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Kirov, K.
(author)
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Bernardo, J.
(author)
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Brix, M.
(author)
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Ferreira, J.
(author)
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Giroud, C.
(author)
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Hawkes, N.
(author)
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Hellsten, TorbjörnKTH,Fusionsplasmafysik(Swepub:kth)u16w7v9f
(author)
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Jonsson, Thomas,1974-KTH,Fusionsplasmafysik(Swepub:kth)u1xypjyh
(author)
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Mailloux, J.
(author)
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Ongena, J.
(author)
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Parra, F.
(author)
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Andersson Sundén, ErikUppsala universitet,Tillämpad kärnfysik(Swepub:uu)erasu959
(author)
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Asp, E.Uppsala universitet,Tillämpad kärnfysik
(author)
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Binda, Federico,1987-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)frebi774
(author)
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Cecconello, MarcoUppsala universitet,Tillämpad kärnfysik(Swepub:uu)marce924
(author)
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Conroy, SeanUppsala universitet,Tillämpad kärnfysik(Swepub:uu)sco17122
(author)
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Dzysiuk, NataliiaUppsala universitet,Tillämpad kärnfysik(Swepub:uu)natdz668
(author)
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Ericsson, GöranUppsala universitet,Tillämpad kärnfysik(Swepub:uu)ger17122
(author)
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Eriksson, Jacob,Dr,1985-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)jacer352
(author)
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Hellesen, Carl,1980-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)cahel173
(author)
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Hjalmarsson, AndersUppsala universitet,Tillämpad kärnfysik(Swepub:uu)ahj25356
(author)
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Possnert, Göran,1951-Uppsala universitet,Tillämpad kärnfysik,Tandemlaboratoriet(Swepub:uu)gpo27116
(author)
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Sjöstrand, Henrik,1978-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)hesjo677
(author)
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Skiba, Mateusz,1985-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)matsk428
(author)
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Weiszflog, MatthiasUppsala universitet,Tillämpad kärnfysik(Swepub:uu)mwe25666
(author)
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Zychor, I.
(author)
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KTHFusionsplasmafysik
(creator_code:org_t)
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In:Nuclear Fusion: Institute of Physics Publishing (IOPP)57:30029-55151741-4326
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Nave, M. F. F.
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Kirov, K.
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Bernardo, J.
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Brix, M.
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Ferreira, J.
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Giroud, C.
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Hawkes, N.
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Hellsten, Torbjö ...
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Jonsson, Thomas, ...
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Mailloux, J.
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Ongena, J.
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Parra, F.
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Andersson Sundén ...
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Asp, E.
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Binda, Federico, ...
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Cecconello, Marc ...
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Conroy, Sean
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Dzysiuk, Natalii ...
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Ericsson, Göran
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Eriksson, Jacob, ...
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Hellesen, Carl, ...
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Hjalmarsson, And ...
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Possnert, Göran, ...
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Sjöstrand, Henri ...
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Skiba, Mateusz, ...
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Weiszflog, Matth ...
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Zychor, I.
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Nuclear Fusion
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Royal Institute of Technology
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