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A jet production experiment using the high-repetition rate Astra laser |
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| Authors: | J N Waugh C D Gregory L A Wilson B Loupias E Brambrink M Koenig Y Sakawa Y Kuramitsu H Takabe R Kodama N C Woolsey |
| Institution: | 1. Department of Physics, University of York, York, YO10 5DD, UK 2. LULI, Ecole Polytechnique, CNRS, CEA, UPMC, Route de Saclay, 91128, Palaiseau, France 3. Institute of Laser Engineering, Osaka University, Yamada Oka 2-6 Suita, Yamada Oka, Osaka, 565-0871, Japan 4. Graduate School of Engineering, Osaka University, 2-1 Yamada Oka, Suita, Osaka, 565-0871, Japan |
| Abstract: | Plasma jets were produced using a high repetition rate laser by laser-ablation of coatings on the surface of conical impressions machined into solid blocks of an aluminium alloy. The ablating plasmas emerged into background gases generating shock waves. The jet-shock system was diagnosed using interferometry. The use of a high repetition rate laser allowed examination of a large number of combinations of jet materials, background gases and gas pressures. |
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