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Title: Dynamics of the structure of the plasma current sheath in a plasma focus discharge

Abstract

The study is aimed at investigating the fine structure of the plasma current sheath (PCS) in the PF-3 plasma focus facility. The PCS dynamics in a deuterium discharge was studied. The PCS parameters were measured using absolutely calibrated magnetic probes installed at different positions with respect to the facility axis and the anode surface. A magneto-optical probe recording both the magnetic signal and the PCS optical luminosity was first applied to analyze the PCS structure. This made it possible to spatially resolve the current and shock-wave regions. It is demonstrated that the current distribution is different in different discharge stages. It is shown that the neutron yield is determined by the value of the current compressed toward the axis, rather then the amplitude of the total discharge current.

Authors:
 [1];  [2]; ; ;  [1];  [2];  [1]
  1. National Research Centre Kurchatov Institute (Russian Federation)
  2. Troitsk Institute for Innovation and Fusion Research (Russian Federation)
Publication Date:
OSTI Identifier:
22047507
Resource Type:
Journal Article
Journal Name:
Plasma Physics Reports
Additional Journal Information:
Journal Volume: 37; Journal Issue: 9; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-780X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANODES; DEUTERIUM; ELECTRIC CURRENTS; FINE STRUCTURE; LUMINOSITY; MAGNETIC PROBES; NEUTRONS; NUCLEAR REACTION YIELD; PLASMA DIAGNOSTICS; PLASMA FOCUS; PLASMA FOCUS DEVICES; PLASMA SHEATH; SHOCK WAVES

Citation Formats

Krauz, V. I., Mitrofanov, K. N., Myalton, V. V., Vinogradov, V. P., Vinogradova, Yu. V., Grabovski, E. V., and Koidan, V. S. Dynamics of the structure of the plasma current sheath in a plasma focus discharge. United States: N. p., 2011. Web. doi:10.1134/S1063780X11080058.
Krauz, V. I., Mitrofanov, K. N., Myalton, V. V., Vinogradov, V. P., Vinogradova, Yu. V., Grabovski, E. V., & Koidan, V. S. Dynamics of the structure of the plasma current sheath in a plasma focus discharge. United States. doi:10.1134/S1063780X11080058.
Krauz, V. I., Mitrofanov, K. N., Myalton, V. V., Vinogradov, V. P., Vinogradova, Yu. V., Grabovski, E. V., and Koidan, V. S. Thu . "Dynamics of the structure of the plasma current sheath in a plasma focus discharge". United States. doi:10.1134/S1063780X11080058.
@article{osti_22047507,
title = {Dynamics of the structure of the plasma current sheath in a plasma focus discharge},
author = {Krauz, V. I. and Mitrofanov, K. N. and Myalton, V. V. and Vinogradov, V. P. and Vinogradova, Yu. V. and Grabovski, E. V. and Koidan, V. S.},
abstractNote = {The study is aimed at investigating the fine structure of the plasma current sheath (PCS) in the PF-3 plasma focus facility. The PCS dynamics in a deuterium discharge was studied. The PCS parameters were measured using absolutely calibrated magnetic probes installed at different positions with respect to the facility axis and the anode surface. A magneto-optical probe recording both the magnetic signal and the PCS optical luminosity was first applied to analyze the PCS structure. This made it possible to spatially resolve the current and shock-wave regions. It is demonstrated that the current distribution is different in different discharge stages. It is shown that the neutron yield is determined by the value of the current compressed toward the axis, rather then the amplitude of the total discharge current.},
doi = {10.1134/S1063780X11080058},
journal = {Plasma Physics Reports},
issn = {1063-780X},
number = 9,
volume = 37,
place = {United States},
year = {2011},
month = {9}
}