What is this image - is it a plasmoid?

Q:

What is this an image of? 

A:

Hot Plasma Vortex Filaments!

  This is an actual image of hot plasma vortex filaments pinched together by their own magnetic fields in a plasma focus fusion device. The photo was taken by Winston Bostick & Victorio Nardi with a very fast exposure time - a few nanoseconds.  This is not really an image of the plasmoid, which is tiny—it is the last stage in the formation of the focus that produces the plasmoid.

The picture is actually black and white.  The purple color is added purely to make a nice logo.