Velocity evolution of electro-magnetically driven shock wave for beam-dissociated hydrogen interaction experiment

8th International Conference on Inertial Fusion Sciences and Applications

Kondo, Kotaro^1 ; Oguri, Yoshiyuki^1

Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo

152-8550, Japan^1

关键词: Beam interactions;    Discharge plasma;    High speed framing cameras;    Hydrogen interaction;    Initial charging;    Initial pressure;    Magnetic shocks;    Shock velocities;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/688/1/012052/pdf
DOI  :  10.1088/1742-6596/688/1/012052

来源: IOP

【 摘 要 】

We present the velocity measurements in electro-magnetic shock tube for beam interaction experiment by three methods; laser refraction, photodiode for self-emission, and high speed framing camera. The laser refraction showed that the average shock velocity was 6.7 km/s when the initial pressure was 1000 Pa and the initial charging voltage was 16 kV. The self-emissions from piston discharge plasma were measured by photodiodes and by high speed framing camera. The measurements showed that the duration between shock and piston was up to 8 microseconds with a 400-mm propagation in the shock tube, which is enough time as dissociation target for beam interaction experiment.The complementary velocity measurement is significant for understanding the electro-magnetically driven shock physics.