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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Benicewicz, P.K. Veirs, D.K. |
| Copyright Year | 1996 |
| Description | Author affiliation: Div. of Nucl. Mater. Technol., Los Alamos Nat. Lab., NM, USA (Benicewicz, P.K.; Veirs, D.K.) |
| Abstract | Summary form only given. Atomic emission spectroscopy of laser generated plasmas can be used to analytically detect elements at ppm concentrations in harsh or radioactive environments. In this technique, a laser beam is focused onto the surface of a sample, the sample is vaporized and a high-temperature plasma is formed. Spectral analysis of the plasma light yields a determination of the elemental content of the original sample. Because the constituents of the laser-created plasma are not constant in time, time-resolved spectral analysis, whereby spectra are obtained only during a specified period of time following creation of the plasma, allows one to discern atomic emissions from ionic emissions and to improve signal-to-noise ratios because the initial large background can be eliminated from detection. A further characterization of the laser generated plasma is obtained by studying its spatial evolution, and is accomplished using a gated, two-dimensional detector, which allows the time-resolved spectroscopic image of the plasma plume to be captured. We chose gadolinium (Gd) for our experiments because many of its physical properties. |
| File Size | 148240 |
| File Format | |
| ISBN | 1557524432 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1996-06-02 |
| Access Restriction | Subscribed |
| Subject Keyword | Plasma properties Atomic measurements Spectroscopy Particle beams Atom lasers Atomic beams Focusing Surface emitting lasers Laser beams Spectral analysis |
| Content Type | Text |
| Resource Type | Article |
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