Experiments to investigate the effects of radiative cooling on plasma jet collimation

Details Experiments to investigate the effects of radiative cooling on plasma jet collimation Experiments to investigate the effects of radiative cooling on plasma jet collimation

2010-11-03

arxiv.org/abs/1011.0891v1

Physics

Plasma Physics

Presented at the 8th High Energy Density Laboratory Astrophysics conference, March 15th - 18th, Caltech, CA, USA

Scientific paper

Preliminary experiments have been performed to investigate the effects of radiative cooling on plasma jets. Thin (3 um - 5 um) conical shells were irradiated with an intense laser, driving jets with velocities > 100 km/s. Through use of different target materials - aluminium, copper and gold - the degree of radiative losses was altered, and their importance for jet collimation investigated. A number of temporally resoved optical diagnostics was used, providing information about the jet evolution. Gold jets were seen to be narrower than those from copper targets, while aluminium targets produced the least collimated flows.

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