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Local dependence of ion temperature gradient on magnetic configuration, rotational shear and turbulent heat flux in MAST

Abstract:

Experimental data from the Mega Amp Spherical Tokamak (MAST) is used to show that the inverse gradient scale length of the ion temperature R/LTi (normalized to the major radius R) has its strongest local correlation with the rotational shear and the pitch angle of the magnetic field (or, equivalently, an inverse correlation with q/{\epsilon}, the safety factor/the inverse aspect ratio). Furthermore, R/LTi is found to be inversely correlated with the gyro-Bohm-normalized local turbulent heat f...

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Publication status:
Published

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Publisher:
Institute of Physics Publishing
Journal:
NUCLEAR FUSION
Volume:
54
Issue:
4
Pages:
042003-042003
Publication date:
2012-11-13
DOI:
EISSN:
1741-4326
ISSN:
0029-5515
URN:
uuid:e88a4140-4e5b-41d9-b347-283da5cb3a51
Source identifiers:
364016
Local pid:
pubs:364016
Language:
English
Keywords:

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