| Autor: |
Aussems, Damien U. B., Nishijima, Daisuke, Brandt, Christian, Doerner, Russell P., Lopes Cardozo, Niek J. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2014, Vol. 116 Issue 6, p063301-1-063301-9, 9p, 3 Black and White Photographs, 2 Diagrams, 1 Chart, 7 Graphs |
| Abstrakt: |
Tungsten plasmas induced by unipolar arcs were investigated using optical emission spectroscopy and imaging, and compared with laser-induced tungsten plasmas. The unipolar arcs were initiated in the linear-plasma simulator PISCES-A at UCSD under fusion relevant conditions. The electron temperature and density of the unipolar arc plasmas were in the range 0.5-0.7 eV and 0.7-2.0×1020m-3, respectively, and increased with increasing negative bias voltage, but did not correlate with the surface temperature. In comparison, the electron temperature and density of the laser-induced plasmas were in the range 0.6-1.4 eV and 7×1019-1×1022m-3, respectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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