Glen Wurden, Jeff Wang (LANL), Stewart Zweben, Lane Roquemore, Henry Kugel (PPPL), Ricky Maqueda (Nova Photonics)
Los Alamos is a team member of the of the new National Spherical Tokamak (NSTX) project at the Princeton Plasma Physics Laboratory. We are providing fast imaging diagnostics, and will be participating in NSTX physics experiments as the experiment begins.
The fast camera system was successfully installed and operated for NSTX Day 0 operations in February 1999. MPEG and/or AVI movie images can be found from the first week of operations. An 8.5mm focal length field lens was coupled to a fiber optic bundle that carried the light to an image intensified Kodak EM1012 fast camera system. (the bundle has a lot of imperfections, which you will notice as black spots throughout the movies). Typical exposure times were 100 microseconds per frame, at 1000 frames per second, for the duration of the discharges, which ranged from 40-150 milliseconds.
NSTX Plasma Movies
Our Original proposal (from April 1998) is shown here to give an idea of our overall collaboration desires and goals.
Flyer (.pdf format) describing the advantages (and necessity) for a NEW fast camera system.
Since March 1, 2004, we are now beginning development of a new diagnostic for NSTX, using a hypervelocity dust beam to determine the direction of the magnetic field in the spherical tokamak, as a function of radius.
Hypervelocity Dust Beam Injection (FY06 Field Work Proposal) for magnetic field determination via observation of the direction of the ablation plume.
LANL MFE Team Home Page