ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Laser-driven flier impact experiments at the SG-III prototype laser facility |
Shui Min (税敏), Chu Gen-Bai (储根柏), Xin Jian-Ting (辛建婷), Wu Yu-Chi (吴玉迟), Zhu Bin (朱斌), He Wei-Hua (何卫华), Xi Tao (席涛), Gu Yu-Qiu (谷渝秋) |
Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP, Mianyang 621900, China |
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Abstract Laser-driven flier impact experiments have been designed and performed at the SG-III prototype laser facility. The continuum phase plate (CPP) technique is used for the 3 ns quadrate laser pulse to produce a relatively uniform irradiated spot of 2 mm. The peak laser intensity is 2.7× 1013 W/cm2 and it accelerates the aluminum flier with a density gradient configuration to a high average speed of 21.3 km/s, as determined by the flight-of-time method with line VISAR. The flier decelerates on impact with a transparent silica window, providing a measure of the flatness of the flier after one hundred microns of flight. The subsequent shock wave acceleration, pursuing, and decay in the silica window are interpreted by hydrodynamic simulation. This method provides a promising method to create unique conditions for the study of a material's properties.
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Received: 26 January 2015
Revised: 31 March 2015
Accepted manuscript online:
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PACS:
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47.40.Nm
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(Shock wave interactions and shock effects)
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47.80.Cb
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(Velocity measurements)
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Corresponding Authors:
Gu Yu-Qiu
E-mail: yqgu@caep.cn
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Cite this article:
Shui Min (税敏), Chu Gen-Bai (储根柏), Xin Jian-Ting (辛建婷), Wu Yu-Chi (吴玉迟), Zhu Bin (朱斌), He Wei-Hua (何卫华), Xi Tao (席涛), Gu Yu-Qiu (谷渝秋) Laser-driven flier impact experiments at the SG-III prototype laser facility 2015 Chin. Phys. B 24 094701
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