| Hard x-ray correlation analysis as a diagnostic tool for the measurement of magnetic turbulence in tokamaks. | |
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MedLine Citation:
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PMID: 21198022 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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A diagnostic has been developed for the measurement and characterization of the magnetic turbulence occurring in the core region of a tokamak. A specially shielded detector looking in the tangential direction has been employed to measure the thin target bremsstrahlung from the core plasma. The thick target bremsstrahlung from the limiter is also recorded at the same time. Auto- and cross-correlation analyses have been shown to yield, respectively, the stochasticity of the magnetic fluctuations in the core region and the consequent diffusion coefficient of the nonthermal electrons. The measured stochasticity bears a relationship with the diffusion coefficient. Data obtained from internal magnetic probes corroborate the above trend but the hard x-ray measurement data are shown to be more reliable than those obtained from magnetic probes. |
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Authors:
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S K Saha; A K Hui; S Chowdhury; Santwana Raychaudhuri; D Banik |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Review of scientific instruments Volume: 81 ISSN: 1089-7623 ISO Abbreviation: Rev Sci Instrum Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2011-01-04 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0405571 Medline TA: Rev Sci Instrum Country: United States |
Other Details:
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Languages: eng Pagination: 123506 Citation Subset: IM |
Affiliation:
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Plasma Physics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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