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Optical Spectroscopy of Free‐Propagating Plasma and Its Interaction with Tungsten Targets in PF‐1000 Facility
Author(s) -
SkladnikSadowska E.,
Malinowski K.,
Sadowski M.J.,
Kubkowska M.,
Jakubowska K.,
Paduch M.,
Scholz M.,
Garkusha I.E.,
Ladygina M.,
Tereshin V.I.
Publication year - 2011
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201000046
Subject(s) - tungsten , plasma , spectroscopy , atomic physics , line (geometry) , stark effect , materials science , absorption spectroscopy , absorption (acoustics) , electrode , ion , plasma diagnostics , physics , spectral line , optics , nuclear physics , geometry , mathematics , quantum mechanics , astronomy , metallurgy
The paper describes the application of optical spectroscopy methods for investigation of intense plasma streams, which are emitted from the large PF‐1000 facility operated at 21‐27 kV, 290‐480 kJ, as well as for studies of interactions of such streams with tungsten (W) targets. The electron concentration, as estimated from the Stark broadening of the D β line recorded at a distance of z = 30 cm from the electrode ends, changed from about 2.2×10 16 to 0.5×10 16 cm –3 in about 5 µs. Spectroscopic measurements were also carried out in experiments performed with a pure W‐target placed at z = 30 cm. There were for the first time in PF‐1000 recorded and identified many WI and WII lines. In some cases an analysis of the D β line was impossible because of its very strong re‐absorption. A quantitative analysis of the W‐lines was not performed, but some information about dynamics of the W‐ions production was obtained (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)