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Design of Langmuir probe diagnostic system for the upgraded lower tungsten divertor in EAST tokamak.
Xu, J C; Wang, L; Xu, G S; Zhu, D H; Feng, W; Liu, J B; Deng, G Z; Lan, H; Yao, D M; Luo, G N; Guo, H Y.
Afiliación
  • Xu JC; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Wang L; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Xu GS; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Zhu DH; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Feng W; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Liu JB; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Deng GZ; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Lan H; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Yao DM; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Luo GN; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
  • Guo HY; Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
Rev Sci Instrum ; 89(10): 10J127, 2018 Oct.
Article en En | MEDLINE | ID: mdl-30399710
In order to achieve long-pulse H-mode plasma scenario over 400 s with high heating power in the Experimental Advanced Superconducting Tokamak (EAST) device, the lower graphite divertor will be upgraded into a tungsten (W) divertor with active water cooling, which consists of the W/Cu monoblock units and the W flat-tile units as the divertor plasma facing components. As a fundamental diagnostic tool, the divertor Langmuir probe (Div-LP) diagnostic system will be upgraded accordingly. This paper presents the design of two kinds of new Div-LP systems, which are planned to be utilized on the W/Cu monoblock units and the W flat-tile units for the upgraded lower tungsten divertor, respectively, including their structures and preliminary poloidal and toroidal layouts. The Div-LP diagnostic system can measure the plasma parameters with the schemes of triple-probe, double-probe, and single-probe, to obtain the spatial and temporal distribution of plasma behavior on the divertor targets, which is useful for the discharge control and operation in EAST. In addition, the thermal analysis of the two kinds of probe assemblies is also carried out by using the three-dimensional finite element code ANSYS, which is aimed to get the optimal designs to withstand the long-pulse and high-power operation in EAST future experiments.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Rev Sci Instrum Año: 2018 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Rev Sci Instrum Año: 2018 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos