Initial results from investigation of three‐dimensional magnetic reconnection in a laboratory plasma

1991 ◽  
Vol 3 (8) ◽  
pp. 2379-2386 ◽  
Author(s):  
M. Yamada ◽  
F. W. Perkins ◽  
A. K. MacAulay ◽  
Y. Ono ◽  
M. Katsurai
Keyword(s):  
Magnetic Reconnection ◽  
Three Dimensional ◽  
Laboratory Plasma ◽  
Initial Results

scholarly journals Experimental Observation of Energetic Ions Accelerated by Three-dimensional Magnetic Reconnection in a Laboratory Plasma

2002 ◽  
Vol 577 (1) ◽  
pp. L63-L66 ◽  
Author(s):  
M. R. Brown ◽  
C. D. Cothran ◽  
M. Landreman ◽  
D. Schlossberg ◽  
W. H. Matthaeus
Keyword(s):  
Magnetic Reconnection ◽  
Experimental Observation ◽  
Three Dimensional ◽  
Laboratory Plasma ◽  
Energetic Ions

Test particle acceleration in resistive torsional fan magnetic reconnection using laboratory plasma parameters

2021 ◽  
Vol 87 (6) ◽  
Author(s):  
D.L. Chesny ◽  
N.B. Orange ◽  
K.W. Hatfield
Keyword(s):  
Particle Acceleration ◽  
Magnetic Reconnection ◽  
Three Dimensional ◽  
Laboratory Plasma ◽  
Plasma Parameters ◽  
Astrophysical Plasmas ◽  
Magnetic Field Topology ◽  
Reconnection Region ◽  
Fundamental Process ◽  
Technology Applications

Particle acceleration via magnetic reconnection is a fundamental process in astrophysical plasmas. Experimental architectures are able to confirm a wide variety of particle dynamics following the two-dimensional Sweet–Parker model, but are limited in their reproduction of the fan-spine magnetic field topology about three-dimensional (3-D) null points. Specifically, there is not yet an experiment featuring driven 3-D torsional magnetic reconnection. To move in this direction, this paper expands on recent work toward the design of an experimental infrastructure for inducing 3-D torsional fan reconnection by predicting feasible particle acceleration profiles. Solutions to the steady-state, kinematic, resistive magnetohydrodynamic equations are used to numerically calculate particle trajectories from a localized resistivity profile using well-understood laboratory plasma parameters. We confine a thin, 10 eV helium sheath following the snowplough model into the region of this localized resistivity and find that it is accelerated to energies of ${\approx }2$ keV. This sheath is rapidly accelerated and focused along the spine axis propagating a few centimetres from the reconnection region. These dynamics suggest a novel architecture that may hold promise for future experiments studying solar coronal particle acceleration and for technology applications such as spacecraft propulsion.

scholarly journals Three-dimensional structure of magnetic reconnection in a laboratory plasma

2003 ◽  
Vol 30 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
C. D. Cothran ◽  
M. Landreman ◽  
M. R. Brown ◽  
W. H. Matthaeus
Keyword(s):  
Magnetic Reconnection ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Laboratory Plasma ◽  
Three Dimensional Structure

scholarly journals Three-dimensional, impulsive magnetic reconnection in a laboratory plasma

2013 ◽  
Vol 40 (2) ◽  
pp. 233-238 ◽  
Author(s):  
S. Dorfman ◽  
H. Ji ◽  
M. Yamada ◽  
J. Yoo ◽  
E. Lawrence ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
Three Dimensional ◽  
Laboratory Plasma

scholarly journals Identification of the Electron-Diffusion Region during Magnetic Reconnection in a Laboratory Plasma

2008 ◽  
Vol 101 (8) ◽  
Author(s):  
Yang Ren ◽  
Masaaki Yamada ◽  
Hantao Ji ◽  
Stefan P. Gerhardt ◽  
Russell Kulsrud
Keyword(s):  
Magnetic Reconnection ◽  
Diffusion Region ◽  
Laboratory Plasma ◽  
Electron Diffusion

scholarly journals Computer studies of the three-dimensional magnetic reconnection with the superimposedBycomponent

2000 ◽  
Vol 105 (A3) ◽  
pp. 5529-5540 ◽  
Author(s):  
Ensang Lee ◽  
Kyoung-Wook Min ◽  
Jongho Seon ◽  
L. C. Lee ◽  
Dongsu Ryu
Keyword(s):  
Magnetic Reconnection ◽  
Three Dimensional ◽  
Computer Studies

scholarly journals Thermomechanical modelling of the Scandinavian ice sheet: implications for ice-stream formation

1999 ◽  
Vol 28 ◽  
pp. 83-89 ◽  
Author(s):  
A. J. Payne ◽  
D.J. Baldwin
Keyword(s):  
Three Dimensional ◽  
Ice Sheet ◽  
Ice Streams ◽  
Ice Flow ◽  
Low Viscosity ◽  
Ice Stream ◽  
Scandinavian Ice Sheet ◽  
The Baltic ◽  
Stream Formation ◽  
Initial Results

AbstractThis work attempts to explain the fan-like landform assemblages observed in satellite images of the area covered by the former Scandinavian ice sheet (SIS). These assemblages have been interpreted as evidence of large ice streams within the SIS. If this interpretation is correct, then it calls into doubt current theories on the formation of ice streams. These theories regard soft sediment and topographic troughs as being the key determinants of ice-stream location. Neither can be used to explain the existence of ice streams on the flat, hard-rock area of the Baltic Shield. Initial results from a three-dimensional, thermomechanical ice-sheet model indicate that interactions between ice flow, form and temperature can create patterns similar to those mentioned above. The model uses a realistic, 20 km resolution gridded topography and a simple parameterization of accumulation and ablation. It produces patterns of maximum ice-sheet extent, which are similar to those reconstructed from the area’s glacial geomorphology. Flow in the maximum, equilibrium ice sheet is dominated by wedges of warm, low-viscosity, fast-flowing ice. These are separated by areas of cold, slow-flowing ice. This patterning appears to develop spontaneously as the modelled ice sheet grows.

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