Preliminary results of Laser-based diagnostics for proto-MPEX
POSTER
Abstract
Oak Ridge National Laboratory (ORNL) Laboratory Directed Research and Development (LDRD) funding enabled the initial installation of laser based, Thomson Scattering (TS), Rayleigh Scattering (RS), and Laser Induced Breakdown Spectroscopy (LIBS) diagnostics on the prototype Material-Plasma Exposure eXperiment (proto-MPEX). TS measures the electron temperature and density while RS measures the neutral density. LIBS is performed by focusing laser radiation onto a target surface, ablating the surface, forming a plasma plume, and analyzing the plume to determine the surface matter composition. The design elements and preliminary measurements for the TS, RS, and LIBS will be discussed, along with considerations for further optimization.
*Research sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U. S. Department of Energy