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Title: Existence of a return direction for plasma escaping from a pinched column in a plasma focus discharge

Abstract

The use of multi-frame interferometry used on the PF-1000 device with the deuterium filling showed the existence of a return motion of the top of several lobules of the pinched column formed at the pinched plasma column. This phenomenon was observed in the presence of an over-optimal mass in front of the anode, which depressed the intensity of the implosion and the smooth surface of the pinched plasma column. The observed evolution was explored through the use of closed poloidal currents transmitted outside the pinched plasma. This interpretation complements the scenario of the closed currents flowing within the structures inside the pinched column, which has been published recently on the basis of observations from interferometry, neutron, and magnetic probe diagnostics on this device.

Authors:
; ; ; ; ; ;  [1]; ;  [2]
  1. Czech Technical University Prague, Prague, 166027 (Czech Republic)
  2. Institute of Plasma Physics and Laser Microfusion Warsaw, Warsaw, 00-908 (Poland)
Publication Date:
OSTI Identifier:
22410323
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANODES; CURRENTS; DEUTERIUM; ELECTRIC DISCHARGES; IMPLOSIONS; INTERFEROMETRY; MAGNETIC PROBES; NEUTRON PROBES; PF-1000 DEVICE; PINCH DEVICES; PLASMA FOCUS

Citation Formats

Kubes, P., Cikhardt, J., Klir, D., Kravarik, J., Rezac, K., Kortanek, J., Cikhardtova, B., Paduch, M., and Zielinska, E. Existence of a return direction for plasma escaping from a pinched column in a plasma focus discharge. United States: N. p., 2015. Web. doi:10.1063/1.4921248.
Kubes, P., Cikhardt, J., Klir, D., Kravarik, J., Rezac, K., Kortanek, J., Cikhardtova, B., Paduch, M., & Zielinska, E. Existence of a return direction for plasma escaping from a pinched column in a plasma focus discharge. United States. doi:10.1063/1.4921248.
Kubes, P., Cikhardt, J., Klir, D., Kravarik, J., Rezac, K., Kortanek, J., Cikhardtova, B., Paduch, M., and Zielinska, E. Fri . "Existence of a return direction for plasma escaping from a pinched column in a plasma focus discharge". United States. doi:10.1063/1.4921248.
@article{osti_22410323,
title = {Existence of a return direction for plasma escaping from a pinched column in a plasma focus discharge},
author = {Kubes, P. and Cikhardt, J. and Klir, D. and Kravarik, J. and Rezac, K. and Kortanek, J. and Cikhardtova, B. and Paduch, M. and Zielinska, E.},
abstractNote = {The use of multi-frame interferometry used on the PF-1000 device with the deuterium filling showed the existence of a return motion of the top of several lobules of the pinched column formed at the pinched plasma column. This phenomenon was observed in the presence of an over-optimal mass in front of the anode, which depressed the intensity of the implosion and the smooth surface of the pinched plasma column. The observed evolution was explored through the use of closed poloidal currents transmitted outside the pinched plasma. This interpretation complements the scenario of the closed currents flowing within the structures inside the pinched column, which has been published recently on the basis of observations from interferometry, neutron, and magnetic probe diagnostics on this device.},
doi = {10.1063/1.4921248},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 5,
volume = 22,
place = {United States},
year = {2015},
month = {5}
}