Target Area Design of an Inertial Confinement Fusion Laser Driver Compatible with Multiple Irradiation Configurations of Targets

2017 ◽  
Vol 71 (2) ◽  
pp. 137-143 ◽  
Author(s):  
Lei Ren ◽  
Jianqiang Zhu
2013 ◽  
Vol 765-767 ◽  
pp. 286-290
Author(s):  
Ming Zhi Zhu ◽  
Xiao Juan Chen ◽  
Mei Cong Wang ◽  
Wen Kai Wu ◽  
Gang Chen ◽  
...  

ShenGuang III (SGIII) facility will be constructed for research in Inertial Confinement Fusion. In this paper, general structure layout and design of target area of SGIII facility are described. Target area structure support system must provide a stable and precisely platform for optical elements before and during a shot. General structure layout must satisfy the mul-function consideration and logistic priority. The modularity and hardware commonality, cleanliness, and low neutron activation should be considered in the structural design of target area. The general structure layout of target area is rectangle. The target bay and the switchyard have the multi-layered layout to satisfy the demand of transporting beam lasers unidirectionally from south to north and supporting the optics modules and physical diagnostic instruments with different height. The passageways of population & goods flow of target area are designed to include the vertical channels between the different layers and the horizontal channels on the same layer. The opto-mechanical elements (OM) are classified as OM1, OM2, and OM3. The OM1 are the infrastructures. The OM2 include target chamber, the shell of final optics assemblies, the mirror frames, and the beam enclosures. The OM3 is line replaceable units that are attached to the OM2 on kinematic equivalent three-vee mounts.


Author(s):  
Yi Zhou ◽  
Ping Yang ◽  
Junwei Zhang ◽  
Hai Zhou

Temperature gradient is one of the most important factors that cause large deformation of the large aperture optical element in an inertial confinement fusion (ICF) laser driver. In this study, we measured the ambient temperature around the laser switchyard and analyzed the temperature distribution and changing characteristics over time. The results indicated that variation trends of temperature inside the switchyard was almost the same, the temperature gradients of the uppermost part were higher than the bottom, and the temperatures in the centre were higher than both sides. Loading the temperature profile into the finite element model of the switchyard showed that the deformation of the optical element changed with time. The results indicate that temperature distribution has a great impact on the optical elements, and it attains the design objective of being smaller than 0.24urad and contents with the requirement of shooting practice when temperature difference is about 0.01°C or partial temperature difference inside the switchyard is about 0.1°C.


Author(s):  
Wanguo Zheng ◽  
Xiaofeng Wei ◽  
Qihua Zhu ◽  
Feng Jing ◽  
Dongxia Hu ◽  
...  

SG-III laser facility is now the largest laser driver for inertial confinement fusion research in China. The whole laser facility can deliver 180 kJ energy and 60 TW power ultraviolet laser onto target, with power balance better than 10%. We review the laser system and introduce the SG-III laser performance here.


2014 ◽  
Vol 33 (5) ◽  
pp. 476-488 ◽  
Author(s):  
David Eimerl ◽  
E. Michael Campbell ◽  
William F. Krupke ◽  
Jason Zweiback ◽  
W. L. Kruer ◽  
...  

2020 ◽  
Vol 36 ◽  
pp. 100801 ◽  
Author(s):  
M.F. Wolford ◽  
M.C. Myers ◽  
Tz.B. Petrova ◽  
J.L. Giuliani ◽  
T.J. Kessler ◽  
...  

2016 ◽  
Vol 65 (20) ◽  
pp. 204206
Author(s):  
Tang Xiong-Xin ◽  
Qiu Ji-Si ◽  
Fan Zhong-Wei ◽  
Wang Hao-Cheng ◽  
Liu Yue-Liang ◽  
...  

1991 ◽  
Vol 9 (2) ◽  
pp. 297-307 ◽  
Author(s):  
W. H. Lowdermilk

The design for an advanced, flash-lamp-pumped Nd: glass laser for inertial confinement fusion (ICF) research and applications is summarized. The laser consists of multiple beam lines, each of which delivers 145-kJ, O.35-μm, 8-ns laser pulses, with pulse shape and bandwidth capabilities consistent with requirements for driving ICF capsules to high gain.


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