DEGAS 2 Artwork

All of these images began as the result of research oriented visualization. Some still very closely resemble the originals (see the various posters listed elsewhere on this site). The rest were tweaked and fiddled with to see just how pretty I could make them.

C-Mod mesh
This shows the mesh used for the Alcator C-Mod gas puff imaging simulations. The color contours are of the H-alpha emission.

C-Mod mesh
The same image doctored in Photoshop.

C-Mod low k pattern
This is a 2-D image of a C-Mod GPI simulation in which a long-wavelength pattern has been imposed on the background plasma. The gas puff is coming from the left, and the core plasma is on the right. I.e., the image has been flipped horizontally relative to the mesh plots shown above.

C-Mod low k pattern
The same data plotted with a different color map.

C-Mod high k pattern
This is a 2-D image of a C-Mod GPI simulation in which a short-wavelength pattern has been imposed on the background plasma.

C-Mod high k pattern
The same data plotted with a different color map.

NSTX H-mode GPI
This is a 2-D image of one of the early simulations of NSTX GPI with an H-mode plasma. The gas is coming from the manifold on the right.

NSTX 3-D GPI geometry
This is a visualization of one of the 3-D NSTX GPI simulations. The yellow object is an isosurface of the neutral density; the gas is coming from behind it. The blue object is an isosurface of the emission rate. The rainbow colored planes are electron density contours. The straight red lines are the corners of the GPI camera view. The dotted red line represents a field line.

NSTX 3-D GPI geometry
This is the same image, but with the "perspective" feature in AVS/Express turned on. The outline of the gas manifold can be seen here inside the yellow density isosurface.

C-Mod gas flow, open case
This is a visualization of the neutral pressure in the DEGAS 2 simulation of the Alcator C-Mod gas conductance measurement experiments. The white, ghostly isosurface is the outline of the vacuum vessel. Three horizontal isoplanes are shown; the middle one is closest to the gas source. This is the open divertor case.

C-Mod gas flow, closed case
This corresponding closed divertor case.