Velocity and electronic state distributions of sputtered Fe atoms by laser-induced fluorescence spectroscopy [electronic resource].
- Argonne, Ill. : Argonne National Laboratory, 1983. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 21 : digital, PDF file
- Additional Creators:
- Argonne National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Velocity distributions and relative populations in the fine-structure levels of the a/sup 5/D/sub J/ ground state of Fe atoms, produced by sputtering with 3 keV argon ions, have been investigated by Doppler shifted laser induced fluorescence. The laser system employs a single-mode, scanning ring dye laser, amplified by a sequence of three excimer-pumped flowing-dye cells. Frequency doubling in a KD*P crystal was used to produce high energy (> .5 mJ) pulses of narrowband tunable UV output near 300 nm. Laser power influence on effective velocity bandwidth was investigated. Favorable light-collection geometry minimized distortion of the velocity spectra from apparatus-averaging effects. In impurity flux diagnostic applications in fusion devices, substantial spatial averaging may occur. In the latter case, the narrow velocity bandwidth (70 m/s, transform limit) of the present laser system is particularly useful.
- Published through SciTech Connect., 01/01/1983., "conf-831011-4", "DE84003649", American Vacuum Society symposium, Boston, MA, USA, 31 Oct 1983., and Young, C.E.; Gruen, D.M.; Pellin, M.J.; Calaway, W.F.
- Funding Information:
View MARC record | catkey: 14753478