Study of the interrelation between the electrotechnical parameters of the plasma focus discharge circuit and the plasma compression dynamics on the PF-3 and PF-1000 facilities

Journal Article · Fri May 15 04:00:00 EDT 2015 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X15040030· OSTI ID:22472338

Grabovski, E. V. ^[1]; Myalton, V. V.; Vinogradov, V. P. ^[2]; Paduch, M. ^[3]; Scholz, M. ^[4]; Karpiński, L. ^[5]

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1. Troitsk Institute for Innovation and Fusion Research (Russian Federation)
2. National Research Centre Kurchatov Institute (Russian Federation)
3. Institute of Plasma Physics and Laser Microfusion (Poland)
4. Polish Academy of Sciences, Niewodniczański Institute of Nuclear Physics (Poland)
5. Łukasiewicz University of Technology, Faculty of Electrical and Computer Engineering (Poland)

The main stages of the plasma current sheath (PCS) dynamics on two plasma focus (PF) facilities with different geometries of the electrode system, PF-3 (Filippov type) and PF-1000 (Mather type), were studied by analyzing the results of the current and voltage measurements. Some dynamic characteristics, such as the PCS velocity in the acceleration phase in the Mather-type facility (PF-1000), the moment at which the PCS reaches the anode end, and the plasma velocity in the radial stage of plasma compression in the PF-3 Filippov-type facility, were determined from the time dependence of the inductance of the discharge circuit with a dynamic plasma load. The energy characteristics of the discharge circuit of the compressing PCS were studied for different working gases (deuterium, argon, and neon) at initial pressures of 1.5–3 Torr in discharges with energies of 0.3–0.6 MJ. In experiments with deuterium, correlation between the neutron yield and the electromagnetic energy deposited directly in the compressed PCS was investigated.

• OSTI ID: 22472338
• Journal Information: Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 5 Vol. 41; ISSN PPHREM; ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
ANODES
ARGON
COMPRESSION
CORRELATIONS
DEUTERIUM
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
INDUCTANCE
NEON
NEUTRONS
PF-1000 DEVICE
PLASMA FOCUS
TIME DEPENDENCE