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Experimental measurement of liquid deuterium equation of state data

Jia Guo Huang Xiu-Guang 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

Jia Guo, Huang Xiu-Guang, Xie Zhi-Yong, Ye Jun-Jian, Fang Zhi-Heng, Shu Hua, Meng Xiang-Fu, Zhou Hua-Zhen, Fu Si-Zu
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Publishing process
  • Received Date:  16 November 2014
  • Accepted Date:  13 April 2015
  • Published Online:  05 August 2015

Experimental measurement of liquid deuterium equation of state data

  • 1. Shanghai Institute of Laser Plasma, Shanghai 201800, China

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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