Chin. Phys. Lett.  2014, Vol. 31 Issue (04): 045201    DOI: 10.1088/0256-307X/31/4/045201
PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
Design of an Indirect-Drive Pulse Shape for ∼1.6 MJ Inertial Confinement Fusion Ignition Capsules
WANG Li-Feng1,2, WU Jun-Feng1, YE Wen-Hua1,2**, FAN Zheng-Feng1, HE Xian-Tu1,2**
1Institute of Applied Physics and Computational Mathematics, Beijing 100094
2HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871
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WANG Li-Feng, WU Jun-Feng, YE Wen-Hua et al  2014 Chin. Phys. Lett. 31 045201
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Abstract We present a design of indirect-drive pulse shape for inertial confinement fusion ignition capsules using laser energy 1.6 MJ with a moderate gain (~10) on the Shenguang IV laser facility. The trade-off fuel compression (pressure) for resistance to the hydrodynamic instability (HI) in the recent high-foot (HF) implosion campaign [Dittrich T R et al Phys. Rev. Lett. 112 (2014) 055002] is recovered. The proposed design modifies the "main" pulse shape, which features a decompression-recompression step for the fuel shell resulting in higher areal density than that of the "simple" HF design, and thereby approaches the conditions required for ignition avoiding at the expense of more laser energy while holding the HI under control.
Received: 26 February 2014      Published: 25 March 2014
PACS:  52.35.Py (Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))  
  52.57.Fg (Implosion symmetry and hydrodynamic instability (Rayleigh-Taylor, Richtmyer-Meshkov, imprint, etc.))  
  52.38.Mf (Laser ablation)  
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http://cpl.iphy.ac.cn/10.1088/0256-307X/31/4/045201       OR      http://cpl.iphy.ac.cn/Y2014/V31/I04/045201
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WANG Li-Feng
WU Jun-Feng
YE Wen-Hua
FAN Zheng-Feng
HE Xian-Tu
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