A5009603489- Laser-Plasma Interactions and Diagnostics
- Plasma Diagnostics and Applications
- Laser-induced spectroscopy and plasma
- Magnetic confinement fusion research
- Solar and Space Plasma Dynamics
- Ionosphere and magnetosphere dynamics
- Nuclear Physics and Applications
- Astrophysics and Star Formation Studies
- Vacuum and Plasma Arcs
- Dust and Plasma Wave Phenomena
- Atomic and Molecular Physics
- Gamma-ray bursts and supernovae
- Plasma Applications and Diagnostics
- Laser Design and Applications
- Pulsed Power Technology Applications
- Ion-surface interactions and analysis
- Astro and Planetary Science
- Astrophysics and Cosmic Phenomena
- Metal and Thin Film Mechanics
- Astrophysical Phenomena and Observations
- Plasma and Flow Control in Aerodynamics
- Electromagnetic Launch and Propulsion Technology
- Fusion materials and technologies
- Diamond and Carbon-based Materials Research
- Electrostatic Discharge in Electronics
Kurchatov Institute
2015-2024
Institute of Plasma Physics and Laser Microfusion
2016-2021
International Laboratory of High Magnetic Fields and Low Temperatures
2021
Moscow Institute of Physics and Technology
2018
National Centre for Nuclear Research
2016
Physical and Technical Institute
2015
Kharkiv Institute of Physics and Technology
2003
Institute of Spectroscopy
1988
This paper is a sequel to the 1998 review “Scientific status of Dense Plasma Focus” with 16 authors belonging nations, whose initiative led establishment International Center for Magnetized Plasmas (ICDMP) in year 2000. Its focus on understanding principal defining characteristic features plasma light developments that have taken place last 20 years, terms new facilities, diagnostics, models, and insights. Although it too soon proclaim certainty what phenomenon is, results available date...
The magnetic field distribution substantially affects mechanisms for the generation of radiation in Z-pinches. Investigation axial component is one important problems plasma focus studies. measurements Bz-component on PF-1000 facility were done with multichannel absolutely calibrated probe both at stage plasma-current sheath radial compression and dense-pinch stage. In stage, reaches several kG that comprises ~10% azimuthal component. presence Bz a powerful argument favor existence closed...
An analysis of the current state plasma focus (PF) research is presented. Some new opportunities for use PF in studies on high-energy-density physics are discussed. The main attention paid to results obtained one world's largest PF-type facilities PF-3 at Kurchatov Institute. Experimental foam liners and tungsten wire arrays dynamics discharge A approach load formation using a cloud free fine-disperse particles condensed matter (dust) proposed. Being source additional mass, dust essentially...
The results of studies the plasma-current sheath structure on PF-1000 facility in stage close to instant pinch formation are presented. measurements were performed using various modifications calibrated magnetic probes. Studies influence probe shape and dimensions accuracy done. current flowing converging at a distance 40 mm from axis electrodes was measured. In optimal operating modes, this is equal total discharge current, which indicates high efficiency transportation toward axis. such...
In this paper, the possible evolution of a pinched plasma column is presented from results temporally resolved measurements using magnetic probe, interferometry and neutron diagnostics performed on focus PF-1000 device with deuterium as filling gas. Together discharge axial current about 1.5 MA toroidal component order 100 kA was estimated in toroidal, helical plasmoidal structures formed within dense column. The mass inside these increases due to injection neighborhood regions higher...
It is shown that the presence of nano-sized and nano-structured erosion products not only affects operation thermonuclear devices but also, to a large extent, determines safety economy future reactors. The formation mechanisms characteristics properties deposited films dust form in tokamaks are reviewed.
In this paper the results of temporally resolved measurements using calibrated azimuthal and axial magnetic probes are presented, together with interferometry neutron diagnostics performed on PF-1000 (IPPLM, Warsaw, 2 MA) device a deuterium filling 1011 yield. The located in anode front at three different radial positions allow determination dominant part discharge current flows behind imploding dense plasma layer. sheath is composed both components field. After reaching minimum diameter,...
The results of an experimental study the formation micropinches (MP) in a plasma focus discharge presence small impurities heavy gas are reported. MPS 10-100 mu m size observed and X-ray spectra multicharged ions impurity (Xe) registered.
This paper evaluates the use of a plasma focus machine (Filippov type) as pulsed intense source hard X-rays. It is shown experimentally that discharging capacitor bank W=50 kJ in new arrangement discharge parameters, one can deliver into test cavity (volume 6*10/sup 3/ cm/sup 3/) an average /spl Phi//sub x/=8*10/sup -4/ J/cm/sup 2/. The delivered energy fluence varies range 2*10/sup 2//spl les//spl x//spl les/2.9*10/sup -3/ 2/, depending on probe position. X-ray spectra were established by...
A laboratory simulation of astrophysical processes is one the intensively developed areas plasma physics. new series experiments has been launched recently on focus type facility in NRC Kurchatov Institute. The main goal to study mechanisms jet stabilization, due which it can propagate at distances much greater than their transverse dimensions. with stationary gas filling revealed regimes a narrowly collimated was formed, head no wider several centimeters propagation up 100[Formula: see...
This paper provides the results of studies plasma flows generated in focus facility PF-1000U. Regimes are found, involving formation compact objects propagating variable-density background environment to distances exceeding initial crosswise dimensions these by dozens times. It is shown that flow spreads with its proper captured toroidal magnetic field. The front structure studied. conclusions about role radiation cooling and confinement collimation stability outflows drawn. obtained this...
This paper presents new results from studies of plasma focus (PF) systems at the Kurchatov Institute (Moscow, Russia). High efficiency discharge current transport into axial region system was demonstrated PF-3 PF facility, where experiments on implosion wire arrays by carrying sheath were performed. The switching over to array and penetration with magnetic field inside studied. emission parameters small-sized facility Wmax = 600 J When operating frequencies up 10 Hz, neutron fluxes about ∼...
Optical emission spectroscopy techniques were used to investigate the spectra of dense deuterium-plasma jets generated by high-current pulse discharges within large PF-1000U facility and estimate parameters plasma inside their surroundings. Time-resolved optical recorded means a Mechelle®900 spectrometer. From an analysis deuterium line broadening, it was estimated that electron concentration at distance 57 cm from electrode outlets amounted (0.4–3.7) × 1017 cm−3 depending on initial gas...
High Mach number shocks have been studied experimentally at the Kurchatov Institute in 2000 with PF3 Plasma Focus [N. V. Filippov et al., Phys. Lett. A 211, 168 (1996)]. The main goal of these especially designed laboratory experiments was to provide data against which test current numerical models, order better understand interaction a high-velocity plasma jet partially ionized gas strong transversal magnetic field. Observed field compression, density profile evolution, and shock slowing...