Reciprocating and fixed probe measurements of n{sub e} and T{sub e} in the DIII-D divertor

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This paper describes divertor density and temperature measurements using both a new reciprocating Langmuir probe (XPT-RCP) which plunges vertically above the divertor floor up to the X-point height and swept, single, Langmuir probes fixed horizontally across the divertor floor. These types of measurements are important for testing models of the SOL and divertor which then are used to design plasma facing components in reactor size tokamaks. This paper presents an overview of the new divertor probe measurements and how they compare with the new divertor Thomson scattering system. The fast time response of the probe measurements allows detailed study of ... continued below

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13 p.

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Watkins, J.G.; Moyer, R.A.; Cuthbertson, J.W.; Buchenauer, D.A.; Carlstrom, T.N.; Hill, D.N. et al. November 1, 1996.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

This paper describes divertor density and temperature measurements using both a new reciprocating Langmuir probe (XPT-RCP) which plunges vertically above the divertor floor up to the X-point height and swept, single, Langmuir probes fixed horizontally across the divertor floor. These types of measurements are important for testing models of the SOL and divertor which then are used to design plasma facing components in reactor size tokamaks. This paper presents an overview of the new divertor probe measurements and how they compare with the new divertor Thomson scattering system. The fast time response of the probe measurements allows detailed study of ELMs.

Physical Description

13 p.

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INIS; OSTI as DE97001319

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  • 12. international conference on plasma surface interactions in controlled fusion devices, Saint-Raphael (France), 20-26 May 1996

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  • Other: DE97001319
  • Report No.: SAND--96-2782C
  • Report No.: GA-A--22362;CONF-960569--13
  • Grant Number: AC04-94AL85000;W-7405-ENG-48;AC03-89ER51114;FG03-95ER54294
  • Office of Scientific & Technical Information Report Number: 405718
  • Archival Resource Key: ark:/67531/metadc676490

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  • November 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • April 14, 2016, 6:40 p.m.

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Watkins, J.G.; Moyer, R.A.; Cuthbertson, J.W.; Buchenauer, D.A.; Carlstrom, T.N.; Hill, D.N. et al. Reciprocating and fixed probe measurements of n{sub e} and T{sub e} in the DIII-D divertor, article, November 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc676490/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.