Collection Of theses on high power laser and plasma physics, 2015, 13 (1): 166401, Published Online: May. 26, 2017  

Experimental measurement of liquid deuterium equation of state data

Author Affiliations
上海激光等离子体研究所, 上海 201800
Abstract
An experimental research platform is built on Shenguang II high power laser facility for obtaining the equation of state of liquid deuterium which has ability to control the temperature in a range of 12–300 K with an accuracy of ±0.03 K in 80 min. By optimizing the coating processing and cleaning the target, we solve the problems that the residual reflection is too high and serious frosting takes place on the window of the target at low temperature, then we obtain the experimental image with a good signal-to-noise ratio. By using the impedance matching method and velocity interferometer system for any reflector, experimental Hugoniot data of liquid deuterium are obtained at a pressure of about 60 GPa under the output condition of 3ω, 3 ns, 1200 J on Shenguang II high power laser, which agrees well with the other published data in the same pressure regime and provides a good foundation for the next experimental study of liquid deuterium equation in 100 GPa pressure regime.
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Jia Guo, Huang Xiu-Guangy, Xie Zhi-Yong, Ye Jun-Jian, Fang Zhi-Heng, Shu Hua, Meng Xiang-Fu, Zhou Hua-Zhen, Fu Si-Zu. Experimental measurement of liquid deuterium equation of state data[J]. Collection Of theses on high power laser and plasma physics, 2015, 13(1): 166401.

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