Development of a coaxial tapered electromagnetic shock tube for beam-plasma non-linear interaction experiments |
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Authors: | K Katagiri J Hasegawa S Nishinomiya H Ikagawa Y Oguri |
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Affiliation: | Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, O-okayama 2-12-1-N1-14, Meguro-ku, 152-8550 Tokyo, Japan |
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Abstract: | A coaxial electromagnetic shock tube was developed to produce a non-ideal plasma target with Γ ∼ 0.1 (Γ: Plasma coupling constant) for non-linear interaction experiments between ion beams and plasmas. To evaluate the shock velocity, we photographed the trajectory of the shock front along the tube by a streak camera. From these measurements, we found that the shock waves are strong enough to produce a non-ideal plasma in the tube. To reduce the plasma thickness for the stopping power measurements, the effective diameter of the tube was reduced by using a tapered section. The effects of the tapered section on the shock velocity and the shape of the shock front were examined. Using a 30 tapered section, the shock velocity was increased up to 54 km/s compared with 47 km/s for a straight tube. |
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Keywords: | 43 25 Cb 34 50 Bw 52 27 Gr 52 58 Hm |
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