Spectroscopy of middle charge state high -Z ions in the ultraviolet for plasma diagnostics.

摘要

The quest for the creation of an economically feasible thermonuclear fusion energy reactor is still active after many decades of research. Modern machines produce plasmas which are both hotter and more dense than those created 30 years ago and future devices promise to continue this trend. Paramount to this research is the capability to adequately measure certain parameters of the plasma such as temperature, density, impurity concentration and radiation loss. This dissertation reports three sets of spectroscopic measurements from intermediate charge state of high-Z ions, which have been performed at the Electron Beam Ion Rap (EBIT) facility of the Lawrence Livermore National Laboratory 1, relevant to the development of spectral plasma diagnostics and to the understanding of radiative energy loss from heavy impurity ions of today's and future fusion devices: measurements of W radiation from 40--85 A, precision measurements along the Cu isoelectronic sequence, and UV spectroscopy of Ti-like W. The results are also compared to the best available theoretical calculations.;1This work was performed under the auspices of the United States Department of Energy by Lawrence Livermore National Laboratory under contract number W-7405--ENG-48.