Elucidating the collimation of laboratory plasma jets using soft x-ray interferometry

2009 ◽  
Author(s):  
M. A. Purvis ◽  
J. Grava ◽  
J. Filevich ◽  
D. P. Ryan ◽  
S. J. Moon ◽  
...  
Keyword(s):  
Plasma Jets ◽  
Laboratory Plasma ◽  
X Ray

Experimental Diagnosis of Plasma Jets by Using X-Ray Laser

2009 ◽  
pp. 350-355
Author(s):  
Sun Jin-ren ◽  
Wang Chen ◽  
Fang Zhi-heng ◽  
Wang Wei ◽  
Xiong Jun ◽  
...  
Keyword(s):  
Plasma Jets ◽  
X Ray

Current polarity effects on laboratory plasma jets

2021 ◽  
Vol 28 (8) ◽  
pp. 082703
Author(s):  
J. T. Banasek ◽  
S. V. R. Rocco ◽  
W. M. Potter ◽  
E. S. Lavine ◽  
C. E. Seyler ◽  
...  
Keyword(s):  
Plasma Jets ◽  
Laboratory Plasma ◽  
Current Polarity ◽  
Polarity Effects

scholarly journals Electron plasma wave Thomson scattering on laboratory plasma jets

2020 ◽  
Vol 27 (6) ◽  
pp. 062708
Author(s):  
J. T. Banasek ◽  
S. V. R. Rocco ◽  
W. M. Potter ◽  
E. S. Lavine ◽  
B. R. Kusse ◽  
...  
Keyword(s):  
Plasma Wave ◽  
Electron Plasma ◽  
Thomson Scattering ◽  
Plasma Jets ◽  
Laboratory Plasma ◽  
Electron Plasma Wave

scholarly journals Recent Advances in Atomic Modeling

1990 ◽  
Vol 115 ◽  
pp. 21-31
Author(s):  
W. H. Goldstein
Keyword(s):  
Accretion Disks ◽  
Inertial Confinement Fusion ◽  
Large Scale ◽  
Inertial Confinement ◽  
Collisional Excitation ◽  
Laboratory Plasma ◽  
X Ray ◽  
Laboratory Plasmas ◽  
Confinement Fusion ◽  
Solar Plasmas

AbstractPrecision spectroscopy of solar plasmas has historically been the goad for advances in calculating the atomic physics and dynamics of highly ionized atoms. Recent efforts to understand the laboratory plasmas associated with magnetic and inertial confinement fusion, and with X-ray laser research, have played a similar role. Developments spurred by laboratory plasma research are applicable to the modeling of high-resolution spectra from both solar and cosmic X-ray sources, such as the photo-ionized plasmas associated with accretion disks. Three of these developments in large scale atomic modeling are reviewed: a new method for calculating large arrays of collisional excitation rates, a sum rule based method for extending collisional-radiative models and modeling the effects of autoionizing resonances, and a detailed level accounting calculation of resonant excitation rates in FeXVII.

scholarly journals X-ray jets and magnetic flux emergence in the Sun

2008 ◽  
Vol 4 (S259) ◽  
pp. 201-210
Author(s):  
Fernando Moreno-Insertis
Keyword(s):  
Magnetic Flux ◽  
Solar Atmosphere ◽  
Numerical Experiments ◽  
High Speed ◽  
Computational Effort ◽  
Plasma Jets ◽  
Solar Interior ◽  
Magnetized Plasma ◽  
Flux Emergence ◽  
X Ray

AbstractMagnetized plasma is emerging continually from the solar interior into the atmosphere. Magnetic flux emergence events and their consequences in the solar atmosphere are being observed with high space, time and spectral resolution by a large number of space missions in operation at present (e.g. SOHO, Hinode, Stereo, Rhessi). The collision of an emerging and a preexisting magnetic flux system in the solar atmosphere leads to the formation of current sheets and to field line reconnection. Reconnection under solar coronal conditions is an energetic event; for the field strengths, densities and speeds involved in the collision of emerging flux systems, the reconnection outflows lead to launching of high-speed (hundreds of km/s), high-temperature (107 K) plasma jets. Such jets are being observed with the X-Ray and EUV detectors of ongoing satellite missions. On the other hand, the spectacular increase in computational power in recent years permits to carry out three-dimensional numerical experiments of the time evolution of flux emerging systems and the launching of jets with a remarkable degree of detail.In this review, observation and modeling of the solar X-Ray jets are discussed. A two-decade long computational effort to model the magnetic flux emergence events by different teams has led to numerical experiments which explain, even quantitatively, many of the observed features of the X-ray jets. The review points out that, although alternative mechanisms must be considered, flux emergence is a prime candidate to explain the launching of the solar jets.

Dynamics of a dense laboratory plasma jet investigated using soft x-ray laser interferometry

2008 ◽  
Vol 78 (1) ◽  
Author(s):  
Jonathan Grava ◽  
Michael A. Purvis ◽  
Jorge Filevich ◽  
Mario C. Marconi ◽  
Jorge J. Rocca ◽  
...  
Keyword(s):  
Laser Interferometry ◽  
Plasma Jet ◽  
Laboratory Plasma ◽  
X Ray

First detection of correlated electron beams and plasma jets in radio and soft X-ray data

Solar Physics ◽  
1994 ◽  
Vol 155 (1) ◽  
pp. 203-206 ◽  
Author(s):  
H. Aurass ◽  
K. -L. Klein ◽  
P. C. H. Martens
Keyword(s):  
Electron Beams ◽  
Plasma Jets ◽  
X Ray ◽  
Correlated Electron

scholarly journals Laboratory plasma physics experiments using merging supersonic plasma jets

2014 ◽  
Vol 81 (2) ◽  
Author(s):  
S. C. Hsu ◽  
A. L. Moser ◽  
E. C. Merritt ◽  
C. S. Adams ◽  
J. P. Dunn ◽  
...  
Keyword(s):  
Plasma Physics ◽  
National Laboratory ◽  
Mean Free Path ◽  
Plasma Jets ◽  
Pulsed Power ◽  
Laboratory Plasma ◽  
Los Alamos National Laboratory ◽  
Supersonic Plasma ◽  
Physics Experiment ◽  
Mean Charge

We describe a laboratory plasma physics experiment at Los Alamos National Laboratory that uses two merging supersonic plasma jets formed and launched by pulsed-power-driven railguns. The jets can be formed using any atomic species or mixture available in a compressed-gas bottle and have the following nominal initial parameters at the railgun nozzle exit: ne ≈ ni ~ 1016 cm−3, Te ≈ Ti ≈ 1.4 eV, Vjet ≈ 30–100 km/s, mean charge $\bar{Z}$ ≈ 1, sonic Mach number Ms ≡ Vjet/Cs > 10, jet diameter = 5 cm, and jet length ≈20 cm. Experiments to date have focused on the study of merging-jet dynamics and the shocks that form as a result of the interaction, in both collisional and collisionless regimes with respect to the inter-jet classical ion mean free path, and with and without an applied magnetic field. However, many other studies are also possible, as discussed in this paper.

scholarly journals Magnetized laboratory plasma jets: Experiment and simulation

2015 ◽  
Vol 91 (1) ◽  
Author(s):  
Peter Schrafel ◽  
Kate Bell ◽  
John Greenly ◽  
Charles Seyler ◽  
Bruce Kusse
Keyword(s):  
Plasma Jets ◽  
Laboratory Plasma ◽  
Experiment And Simulation

Collimation of dense plasma jets created by low-energy laser pulses and studied with soft x-ray laser interferometry

2010 ◽  
Vol 81 (3) ◽  
Author(s):  
Michael A. Purvis ◽  
Jonathan Grava ◽  
Jorge Filevich ◽  
Duncan P. Ryan ◽  
Stephen J. Moon ◽  
...  
Keyword(s):  
Dense Plasma ◽  
Laser Interferometry ◽  
Laser Pulses ◽  
Plasma Jets ◽  
Low Energy ◽  
X Ray ◽  
Energy Laser ◽  
Low Energy Laser
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