Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..651..321a&link_type=abstract
DENSE Z-PINCHES: 5th International Conference on Dense Z-Pinches. AIP Conference Proceedings, Volume 651, pp. 321-324 (2002).
Astronomy and Astrophysics
Astrophysics
1
Laboratory Studies Of Space- And Astrophysical-Plasma Processes, Wire Array Z-Pinches
Scientific paper
A new application of the wire array Z-pinch is the investigation of astrophysical phenomena. Here highly supersonic jets (mach number, M~20) formed using over-massed tungsten wire arrays in a conical arrangement [1] on the MAGPIE facility are to study the interaction with plasma targets. Self X-ray emission from the jet formation region is used to ablate various off-axis targets (CH foams, C and CHO foils). Interferometer, shadowgram and gated soft X-ray images show a deflection of the jet by the target plasma and shocks propagating within the jet. Bending angles up to 25° were observed, depending on the initial target position. Hydrodynamic simulations suggest that this deflection is unlikely to be caused by the static density gradient of 5×1017 cm-4 observed in the target plasma, but rather by momentum exchange from a sonic wind flowing from the target.
Ampleford David J.
Bland Simon N.
Chittenden Jeremy P.
Ciardi Andrea
Haines M. G.
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