Investigation of compression of puffing neon by deuterium current and plasma sheath in plasma focus discharge

Journal Article · Mon Jun 15 04:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4922483· OSTI ID:22410442

Kubes, P.; Cikhardt, J.; Cikhardtova, B.; Rezac, K.; Klir, D.; Kravarik, J.; Kortanek, J. ^[1]; Paduch, M.; Zielinska, E. ^[2]

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1. Czech Technical University Prague, Prague (Czech Republic)
2. Institute of Plasma Physics and Laser Microfusion, Warsaw (Poland)

This paper presents the results of the research of the influence of compressed neon, injected by the gas-puff nozzle in front of the anode axis by the deuterium current and plasma sheath on the evolution of the pinch, and neutron production at the current of 2 MA. The intense soft X-ray emission shows the presence of neon in the central region of the pinch. During the implosion and stopping of the plasma sheath, the deuterium plasma penetrates into the internal neon layer. The total neutron yield of 10{sup 10}–10{sup 11} has a similar level as in the pure deuterium shots. The neutron and hard X-ray pulses from fusion D-D reaction are as well emitted both in the phase of the stopping implosion and during the evolution of instabilities at the transformation of plasmoidal structures and constrictions composed in this configuration from both gases. The fast deuterons can be accelerated at the decay of magnetic field of the current filaments in these structures.

• OSTI ID: 22410442
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 6 Vol. 22; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANODES
DEUTERIUM
DEUTERONS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
FILAMENTS
HARD X RADIATION
IMPLOSIONS
MAGNETIC FIELDS
NEON
NEUTRONS
NOZZLES
PLASMA FOCUS
PLASMA INSTABILITY
PLASMA SHEATH
SOFT X RADIATION
THERMONUCLEAR REACTIONS