Relative ion expansion velocity in laser-produced plasmas

Journal Article · Fri Jul 15 00:00:00 EDT 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.341945· OSTI ID:7246949

Goldsmith, S; Moreno, J C; Griem, H R; Cohen, L; Richardson, M C

The spectra of highly ionized titanium, TiXIII through TiXXI, and CVI Lyman lines were excited in laser-produced plasmas. The plasma was produced by uniformly irradiating spherical glass microballoons coated with thin layers of titanium and parylene. The 24-beam Omega laser system produced short, 0.6 ns, and high intensity, 4 x 10/sup 14/ W/cm,/sup 2/ laser pulses at a wavelength of 351 nm. The measured wavelength for the 2p-3s TiXIII resonance lines had an average shift of +0.023 A relative to the CVI and TiXX spectral lines. No shift was found between the CVI, TiXIX, and TiXX lines. The shift is attributed to a Doppler effect, resulting from a difference of (2.6 +- 0.2) x 10/sup 7/ cm/s in the expansion velocities of TiXIX and TiXX ions compared to TiXIII ions.

• Research Organization: Laboratory for Plasma and Fusion Energy Studies, University of Maryland, College Park, Maryland 20742
• OSTI ID: 7246949
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:2; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CARBON IONS
CHARGED PARTICLES
ELEMENTS
EXPANSION
IONS
LASER TARGETS
LASER-PRODUCED PLASMA
METALS
MICROSPHERES
OMEGA FACILITY
PLASMA
POLYMERS
SPECTRA
TARGETS
TITANIUM
TITANIUM IONS
TRANSITION ELEMENTS
X-RAY SPECTRA