Shanghai Light Machinery Institute, "Shenuang" drive upgrade device High-power shoot the watt laser system, the application of the largest-caliber dielectric film compression grating (1025mm × 350mm), in July 2016 completed the full-bore pulse compressor debugging, respectively, to achieve 1035 Joules (8 picoseconds) and 970 joules (1.7 picoseconds) picosecond picoseconds high energy short pulse output. This result indicates that the output capability of China's high-energy watt-hour laser system has crossed into the level of kilojoules. Previously, the high energy watt-hour laser system of "ShenGuang" driver upgrade device achieved the pulse energy of 350J / 10ps and the focused light intensity of the target surface of 1019W / cm2 in January 2014 by using medium-sized domestic dielectric film compression grating (430mm × 350mm) (50% concentrated in 25μm circle), signal to noise ratio before pulse 80ps 108. Subsequently, two successful physical experiments including gas targets, planar targets and cone targets were carried out in the same year. September 2015 In order to carry out the first "quick fire" integrated physics experiment in China, the first combination experiment of "ShenGuang" drive upgrade device with eight-channel nanosecond system and high-energy shoot-watt laser system was completed. Relevant research units in the physical experiment carried out the first time in the world based on the indirect-driven "fast ignition" experiments obtained higher than the non-high-wattage laser injection of 200 times higher neutron yield output, more than in the United States OMEGA-EP device achieved by direct drive to get four times the highest increase in the international level. The experiment has made our country in the "quick fire" experimental research milestone in the research results and progress. At the Conference on Laser Energy Science of Optics and Photonics International Congress 2016 held in Yokohama, Japan, on May 15 this year, Prav Patel from the internationally renowned laboratories such as LLNL in the United States, ILE in Japan and RAL in the United Kingdom .Mima, M.Roth, SC Wilks, P. Norreys, J. Fernandez, S. Fujioka, J. Honrubia, H. Azechi, Y. Nishimura, M. Murakami and other well-known scholars of their congratulation and encouragement, they "God "The level of development of a drive upgrade device, especially the ability of a high-energy shoot-watt laser system, is fully acknowledged. So far, the system has successfully provided more than 200 times of operational output for physical experiments, which fully proves that the high energy watt-hour laser system has fully possessed the picosecond and sub-picosecond ultrashort pulse physical experimental operation capability. As a "quick fire" physics experimental research platform, "Shenuang" drive upgrade device high-power shoot-watt laser system will provide our country a high-energy density physics research and the world's advanced level comparable to the laser driver platform. Y Type Pressure Differential Valve
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