The calculation of electron chemical potential and ion charge state and their influence on plasma conductivity in electrical explosion of metal wire

Journal Article · Sat Mar 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4867676· OSTI ID:22251978

Shi, Zongqian; Wang, Kun; Li, Yao; Shi, Yuanjie; Wu, Jian; Jia, Shenli ^[1]

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1. State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Shanxi 710049 (China)

The electron chemical potential and ion charge state (average ion charge and ion distribution) are important parameters in calculating plasma conductivity in electrical explosion of metal wire. In this paper, the calculating method of electron chemical potential and ion charge state is discussed at first. For the calculation of electron chemical potential, the ideal free electron gas model and Thomas-Fermi model are compared and analyzed in terms of the coupling constant of plasma. The Thomas-Fermi ionization model, which is used to calculate ion charge state, is compared with the method based on Saha equation. Furthermore, the influence of electron degenerated energy levels and ion excited states in Saha equation on the ion charge state is also analyzed. Then the influence of different calculating methods of electron chemical potential and ion charge state on plasma conductivity is discussed by applying them in the Lee-More conductivity model.

• OSTI ID: 22251978
• Journal Information: Physics of Plasmas, Vol. 21, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGE STATES
COUPLING CONSTANTS
ELECTRON GAS
ELECTRONS
EXCITED STATES
PLASMA
SAHA EQUATION
THOMAS-FERMI MODEL
WIRES