skip to main content

Title: Continuous wave cavity ring-down spectroscopy for velocity distribution measurements in plasma

We report the development of a continuous wave cavity ring-down spectroscopic (CW-CRDS) diagnostic for real-time, in situ measurement of velocity distribution functions of ions and neutral atoms in plasma. This apparatus is less complex than conventional CW-CRDS systems. We provide a detailed description of the CW-CRDS apparatus as well as measurements of argon ions and neutrals in a high-density (10{sup 9} cm{sup −3} < plasma density <10{sup 13} cm{sup −3}) plasma. The CW-CRDS measurements are validated through comparison with laser induced fluorescence measurements of the same absorbing states of the ions and neutrals.
Authors:
 [1] ;  [2] ;  [1]
  1. Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
22482560
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ARGON IONS; ATOMS; DISTRIBUTION; DISTRIBUTION FUNCTIONS; EQUIPMENT; FLUORESCENCE; LASERS; PLASMA DENSITY; SPECTROSCOPY