Magnetic configuration flexibility of snowflake divertor for HL-2M [Analysis of snowflake divertor configurations for HL-2M]

Zheng, G. Y.; Xu, X. Q.; Ryutov, D. D.; Pan, Y. D.; Xia, T. Y.

doi:10.1016/j.fusengdes.2014.06.014

Title: Magnetic configuration flexibility of snowflake divertor for HL-2M [Analysis of snowflake divertor configurations for HL-2M]

Journal Article · Wed Jul 09 00:00:00 EDT 2014 · Fusion Engineering and Design

DOI:https://doi.org/10.1016/j.fusengdes.2014.06.014· OSTI ID:1313554

Zheng, G. Y. ^[1]; Xu, X. Q. ^[2]; Ryutov, D. D. ^[2]; Pan, Y. D. ^[3]; Xia, T. Y. ^[4]

Southwestern Institute of Physics, Chengdu (People's Republic of China); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Southwestern Institute of Physics, Chengdu (People's Republic of China)
Chinese Academy of Sciences, Hefei (People's Republic of China)

HL-2M (Li, 2013 [1]) is a tokamak device that is under construction. Based on the magnetic coils design of HL-2M, four kinds of divertor configurations are calculated by CORSICA code (Pearlstein et al., 2001 [2]) with the same main plasma parameters, which are standard divertor, exact snowflake divertor, snowflake-plus divertor and snowflake-minus divertor configurations. The potential properties of these divertors are analyzed and presented in this paper: low poloidal field area around X-point, connection length from outside mid-plane to the primary X-point, target plate design and magnetic field shear. The results show that the snowflake configurations not only can reduce the heat load at divertor target plates, but also may improve the magneto-hydrodynamic stability by stronger magnetic shear at the edge. Furthermore, a new divertor configuration, named “tripod divertor”, is designed by adjusting the positions of the two X-points according to plasma parameters and magnetic coils current of HL-2M.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1313554

Report Number(s):: LLNL-JRNL-651522

Journal Information:: Fusion Engineering and Design, Vol. 89, Issue 11; ISSN 0920-3796

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 14 works

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References (14)

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Cited By (2)

Summary of magnetic fusion plasma physics in 1st AAPPS-DPP meeting Li, Jiangang; Zhong, Wulyu Reviews of Modern Plasma Physics, Vol. 2, Issue 1 https://doi.org/10.1007/s41614-018-0015-8	journal	March 2018
The snowflake divertor Ryutov, D. D.; Soukhanovskii, V. A. Physics of Plasmas, Vol. 22, Issue 11 https://doi.org/10.1063/1.4935115	journal	November 2015

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Title: Magnetic configuration flexibility of snowflake divertor for HL-2M [Analysis of snowflake divertor configurations for HL-2M]

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