Three dimensional field lines taken from a volumetric data set in an experiment in which two laser produced plasmas collide. Data was acquired at 30,000 locations in a 3D volume in the LAPD device. Shown are the magnetic fields due to Alfven wave currents.
Isosurfaces of field aligned current from a shear Alfven wave launched using a specialized antenna allowing for arbitrary polarization of the wave. The blue and red surfaces represent current densities of jz=0.5 A/cm^2.
The Large Plasma Research Device (LAPD) is housed at UCLA and users a highly reproducible, magnetized plasma source. The plasma device is operated round-the-clock providing research-grade plasmas at a 1 Hz repetition rate, and having a wide range of possible parameter choices under the user's control.
Click this image to watch a six-minute video about the research being performed at the PSTI, which consists of affiliated laboratories and research groups investigating fundamental questions related to the fourth state of matter known as plasma.
A Projection of magnetic field lines onto the plane centered z=94.8 cm from the targets. The data were derived from vector magnetic field measurements taken on five planes at distances ranging from 31.5 to 284.4 cm from the targets.
Current streamlines of a shear Alfven wave launched by a helical antenna. The wave magnetic field on a plane orthogonal to the background magnetic field is shown to guide the eye.