Author:
Zhang Zhe,Yuan Xiao-Hui,Zhang Yi-Hang,Liu Hao,Fang Ke,Zhang Cheng-Long,Liu Zheng-Dong,Zhao Xu,Dong Quan-Li,Liu Gao-Yang,Dai Yu,Gu Hao-Chen,Li Yu-Tong,Zheng Jian,Zhong Jia-Yong,Zhang Jie, , , , , , , , ,
Abstract
A collision of supersonic jets in the double-cone ignition scheme is realized experimentally. With a very high deceleration, the supersonic jets merge into a high density plasma core, which will be further fast heated to ignition condition. Both the density and temperature of the plasma core are increased due to nearly 100% of kinetic energy of the jets converted into the internal energy. Some diagnostic tools are used to characterize the plasma, including X-ray Thomson scattering, hard X-ray monochromatic backlighting, X-ray streak imaging and framing imaging. The density of the supersonic jet arrive at about 5.5–8 g/cm<sup>3</sup>. During colliding, a stagnation phase lasts about 200 ps, and the maximum density of the plasma core is increased to (46 ± 24) g/cm<sup>3</sup>. By analyzing the velocity and temperature before and after colliding, it is found that 90% of the kinetic energy is converted into thermal energy.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
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