Core Poloidal Rotation and Internal Trnasport Barrier Formation in TFTR

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Impurity poloidal rotation velocities have been measured in the core of TFTR plasmas using a new spectroscopic diagnostic. Two types of transitions to enhanced confinement in reversed shear plasmas are examined. A bifurcation in carbon poloidal rotation is observed to occur before the transition to enhanced confinement for one of these types, while other measured plasmas parameters remain constant. A narrow radial region with reversed poloidal rotation and rotational shear is established 60-100 ms before the transition, and is associated with a large negative radial electric field.

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Synakowski, E.J.; Levinton, F.M.; Zarnstorff, M.C.; Bell, R.E.; Batha, S.H. & al, et January 1, 1998.

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Impurity poloidal rotation velocities have been measured in the core of TFTR plasmas using a new spectroscopic diagnostic. Two types of transitions to enhanced confinement in reversed shear plasmas are examined. A bifurcation in carbon poloidal rotation is observed to occur before the transition to enhanced confinement for one of these types, while other measured plasmas parameters remain constant. A narrow radial region with reversed poloidal rotation and rotational shear is established 60-100 ms before the transition, and is associated with a large negative radial electric field.

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86 Kilobytes

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  • Other: DE00003750
  • Report No.: PPPL-3280
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/3750 | External Link
  • Office of Scientific & Technical Information Report Number: 3750
  • Archival Resource Key: ark:/67531/metadc676118

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  • January 1, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • April 15, 2016, 7:55 p.m.

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Synakowski, E.J.; Levinton, F.M.; Zarnstorff, M.C.; Bell, R.E.; Batha, S.H. & al, et. Core Poloidal Rotation and Internal Trnasport Barrier Formation in TFTR, report, January 1, 1998; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc676118/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.