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Argon and Xenon Pulsed Theta-Pinch Plasma via Optical Emission Spectroscopy
| Content Provider | Semantic Scholar |
|---|---|
| Author | Meeks, Warner Charles Rovey, Joshua L. |
| Copyright Year | 2013 |
| Abstract | Analyses of argon and xenon spectral emission data in the IR range and estimation of electron temperatures are performed on a theta pinch test article. Estimations are based on the intensity ratio technique using collisional-radiative models. Tests performed on a pulsed xenon plasma at an energy of 80 joules, neutral back-fill pressures of 10−2 to 10−1 Torr, and vacuum discharge frequency of 460 kHz yield electron temperatures of 3.3 to 3.6 eV for argon and 6.5 to 11.3 eV for xenon integrated spectra of the first 20 μs. Spectra acquired in the UV range is used to validate the presence of dominant 2 order diffraction from singly ionized xenon transitions while minimal 2 order diffraction is observed for argon. Time-resolved electron temperature estimations are done using CCD gate widths of 250 ns. Currently, time-resolved studies of xenon show a range of electron temperatures from a minimum of 9 eV for 50 mTorr to a maximum of 92 eV for 10 mTorr. Poor single-tonoise ratios produce substantial fluctuation in intensities and thus estimation errors, while not quantified here, are assumed high for the time-resolved studies. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://campus.mst.edu/aplab/index_files/IEPC-2013-378.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
