| Autor: |
Gary M. Hieftje, Mao Huang, D.S. Hanselman, Pengyuan Yang, Curtis A. Monnig |
| Rok vydání: |
1990 |
| Předmět: |
|
| Zdroj: |
Spectrochimica Acta Part B: Atomic Spectroscopy. 45:511-520 |
| ISSN: |
0584-8547 |
| DOI: |
10.1016/0584-8547(90)80126-4 |
| Popis: |
A 20-Hz frequency-doubled Q-switched Nd : YAG laser has been used to measure Thomson-scattering spectra from an inductively coupled argon plasma (ICP). The experimental data were treated with a non-linear regression curve-fitting program to determine electron temperatures and electron number densities under different plasma operating conditions. A comparison of the measured Thomson-scattering spectra with the corresponding fitted curves indicates that the electron energy distributions in the ICP are very close to Maxwellian under a wide range of sample-introduction conditions and at locations above, below, and at the tip of the “bullet”. As a result, electron temperature can be used as a meaningful fundamental parameter. The theory used in this study is briefly reviewed and the detailed experimental considerations are described. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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