Investigation of interactions of intense plasma streams with tungsten and carbon fibre composite targets in the PF-1000 facility
This paper presents the results of research on interactions of pulsed plasma streams, as generated by the PF-1000 facility, with solid targets made of tungsten or carbon fibre composite. The device was equipped with a modified inner electrode with a central tungsten insert of 50 mm in diameter. The...
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Published in | Physica scripta Vol. T161; no. 1; pp. 14038 - 14042 |
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Main Authors | , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
01.05.2014
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Subjects | |
Online Access | Get full text |
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Summary: | This paper presents the results of research on interactions of pulsed plasma streams, as generated by the PF-1000 facility, with solid targets made of tungsten or carbon fibre composite. The device was equipped with a modified inner electrode with a central tungsten insert of 50 mm in diameter. The PF-1000 experimental chamber was filled with pure deuterium at p0 = 1.47 hPa. At the charging voltage U0 = 24 kV, the maximum current amounted to 1.8 MA in about 5.5 μs after the discharge initiation. The investigated targets were located on the z-axis, at a distance of 9 cm from the inner electrode end. For plasma diagnostics, optical emission spectroscopy, 16-frame laser interferometry and a soft x-ray measuring system of four silicon pin diodes were used. It was observed that plasma streams reached the target about 100 ns after the maximum compression and generated a plasma pillow at the sample surface, as proved from time-resolved optical spectra. |
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Bibliography: | Royal Swedish Academy of Sciences |
ISSN: | 0031-8949 1402-4896 |
DOI: | 10.1088/0031-8949/2014/T161/014038 |