TY - JOUR KW - Target KW - Temperature KW - USA KW - Emission KW - System KW - Ablation KW - Laser KW - Laser ablation KW - Laser ablation KW - Spectroscopy KW - P KW - Time KW - Ca KW - Composition KW - Plasma KW - Atomic emission KW - Number KW - Alloy KW - Mechanism KW - Mechanisms KW - Systems KW - Electron number densities KW - Plasmas KW - Density KW - Targets KW - Aluminum KW - Electron KW - Electron number density KW - Number density KW - Spectra KW - Spectrum KW - Laser-induced plasma KW - Laser-induced plasma KW - Laser-induced plasmas KW - Results KW - Irradiation KW - Laser irradiation KW - Plasma formation KW - Laser plasma KW - Quasicrystal KW - Emission spectrum KW - Emission-spectra KW - Emission spectrum KW - Formation mechanism KW - La KW - Plasma spectroscopy AU - Mauro Satta AU - Xianzhong Zeng AU - Xianglei Mao AU - Samuel S Mao AU - Richard E Russo AU - Anna Giardini Guidoni AU - Aldo Mele AB -
Electron number density and temperature were determined from laser-induced plasmas produced by irradiating Al-Cu-Fe targets of a quasicrystal and of an alloy of similar composition. The Al(I) atomic emission spectra of the two systems were measured as a function of the distance from the target and of the time delay after laser irradiation. Differences of plasma characteristics were o served for laser ablation of quasicrystal and alloy targets, and the results were interpreted on the basis of different plasma formation mechanisms for the two systems
AD -Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy CNR, Ist Metodol Inorgan & Plasmi, I-85050 Tito, PZ, Italy Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
BT - Applied Spectroscopy C2 - LBNL-53270 DA - 07/2003 IS - 7 LA - eng LB - Laser N1 -LBNL-53270 NOT IN FILE
N2 -Electron number density and temperature were determined from laser-induced plasmas produced by irradiating Al-Cu-Fe targets of a quasicrystal and of an alloy of similar composition. The Al(I) atomic emission spectra of the two systems were measured as a function of the distance from the target and of the time delay after laser irradiation. Differences of plasma characteristics were o served for laser ablation of quasicrystal and alloy targets, and the results were interpreted on the basis of different plasma formation mechanisms for the two systems
PY - 2003 SP - 737 EP - 743 ST - Appl Spectrosc. T2 - Applied Spectroscopy TI - Laser plasma spectroscopy of Al-Cu-Fe quasicrystal and alloy VL - 57 ER -