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

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.
Authors:
; ; ; ; ; ;  [1] ; ;  [2]
  1. Czech Technical University Prague, Prague (Czech Republic)
  2. Institute of Plasma Physics and Laser Microfusion, Warsaw (Poland)
Publication Date:
OSTI Identifier:
22410442
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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