(Ion temperature gradient instability and transport: Progress report)

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Anomalous ion thermal conductivity remains in open physics issue for the present generation of high temperature Tokamaks. It is now believed to be due to the Ion Temperature Gradient (ITG or n{sub i}) instability. The production and identification of this instability is being studied in the simpler and experimentally convenient configuration of the steady state Columbia Linear Machine (CLM). The slab branch of this instability has been produced (by two different heating methods), identified and reported for the first time. The transition of the slab branch to the toroidal branch (more relevant for Tokamaks) has now been studied by turning ... continued below

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Pages: (3 p)

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Creator: Unknown. January 1, 1992.

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Description

Anomalous ion thermal conductivity remains in open physics issue for the present generation of high temperature Tokamaks. It is now believed to be due to the Ion Temperature Gradient (ITG or n{sub i}) instability. The production and identification of this instability is being studied in the simpler and experimentally convenient configuration of the steady state Columbia Linear Machine (CLM). The slab branch of this instability has been produced (by two different heating methods), identified and reported for the first time. The transition of the slab branch to the toroidal branch (more relevant for Tokamaks) has now been studied by turning on the mirror current and gradually increasingly it in CLM. This has enabled us to identify the toroidal/trapped ion branch of the ITG mode for the first time. A preliminary measurement of the ion thermal conductivity due to the mode indicates a highly anomalous value.

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Pages: (3 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • Other: DE92013590
  • Report No.: DOE/ER/53257-5
  • Grant Number: FG02-87ER53257
  • DOI: 10.2172/5255710 | External Link
  • Office of Scientific & Technical Information Report Number: 5255710
  • Archival Resource Key: ark:/67531/metadc1066944

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1992

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 6, 2018, 7:39 p.m.

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(Ion temperature gradient instability and transport: Progress report), report, January 1, 1992; United States. (digital.library.unt.edu/ark:/67531/metadc1066944/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.