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  Density peaking, anomalous pinch, and collisionality in Tokamak plasmas

Angioni, C., Peeters, A. G., Pereverzev, G. V., Ryter, F., Tardini, G., & ASDEX Upgrade Team (2003). Density peaking, anomalous pinch, and collisionality in Tokamak plasmas. Physical Review Letters, 90(20): 205003. doi:10.1103/PhysRevLett.90.205003.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-3AEB-F Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-3AEC-D
Genre: Journal Article

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 Creators:
Angioni, C.1, Author           
Peeters, A. G.2, Author           
Pereverzev, G. V.1, Author           
Ryter, F.3, Author           
Tardini, G.4, Author           
ASDEX Upgrade Team5, Author
Affiliations:
1Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856309              
2Tokamak Theory (TOK), Max Planck Institute for Plasma Physics, Max Planck Society
3Tokamak Edge and Divertor Physics (E2), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856308              
4Experimental Plasma Physics 1 (E1), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856295              
5Max Planck Society, ou_persistent13              

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 Abstract: The existence of an anomalous particle pinch in magnetized tokamak plasmas is still questioned. Contradictory observations have been collected so far in tokamaks. Clear experimental evidence that density peaking in tokamak plasmas drops with increasing collisionality is provided for the first time. This phenomenon is explained by means of existing theoretical models based on the fluid description of drift wave instabilities, provided that such models include the dissipative effects introduced by collisions on the mentioned instabilities. These results reconcile the apparent contradictions found so far in the experiments.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 59833
DOI: 10.1103/PhysRevLett.90.205003
URI: http://ojps.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PRLTAO000090000020205003000001&idtype=cvips
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Title: Physical Review Letters
  Alternative Title : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Copyright © 2003 The American Physical Society
Pages: - Volume / Issue: 90 (20) Sequence Number: 205003 Start / End Page: - Identifier: -