Investigation of E-Divertor Plasma during Simultaneous Injection of Hydrogen and Impurity Gases into GAMMA 10/PDX by Using the LINDA Code Investigation of E-Divertor Plasma during Simultaneous Injection of Hydrogen and Impurity Gases into GAMMA 10/PDX by Using the LINDA Code

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Abstract

This paper describes the behavior of plasma parameters in the E-divertor region of GAMMA 10/PDX numerically by using the multi-fluid code (LINDA) during injection of hydrogen (H) and Argon (Ar). A remarkable reduction in the electron temperature (Te) has been recognized due to Ar injection. For only Ar 6.0 × 1017 m−3 injection, Te on the target plate decreases to nearly 10 eV. Te also reduces according to the increment of H injection. The ion temperature (Ti) on the target plate also decreases according to the increment of injected H neutral density. A tendency of saturation in the particle flux and the electron density is observed at the higher H injection in the case of simultaneous injection of H and Ar. The charge exchange loss enhances significantly during H injection. The radiation power loss also enhances for Ar injection.

<p>This paper describes the behavior of plasma parameters in the E-divertor region of GAMMA 10/PDX numerically by using the multi-fluid code (LINDA) during injection of hydrogen (H) and Argon (Ar). A remarkable reduction in the electron temperature (<i>T</i><sub>e</sub>) has been recognized due to Ar injection. For only Ar 6.0 × 10<sup>17 </sup>m<sup>−3 </sup>injection, <i>T</i><sub>e </sub>on the target plate decreases to nearly 10 eV. <i>T</i><sub>e </sub>also reduces according to the increment of H injection. The ion temperature (<i>T</i><sub>i</sub>) on the target plate also decreases according to the increment of injected H neutral density. A tendency of saturation in the particle flux and the electron density is observed at the higher H injection in the case of simultaneous injection of H and Ar. The charge exchange loss enhances significantly during H injection. The radiation power loss also enhances for Ar injection.</p>

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 13(0), 3403080-3403080, 2018

    The Japan Society of Plasma Science and Nuclear Fusion Research

Codes

  • NII Article ID (NAID)
    130007437753
  • NII NACSIS-CAT ID (NCID)
    AA12346675
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    1880-6821
  • Data Source
    IR  J-STAGE 
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