scholarly journals Laser performance of the SG-III laser facility

2016 ◽  
Vol 4 ◽  
Author(s):  
Wanguo Zheng ◽  
Xiaofeng Wei ◽  
Qihua Zhu ◽  
Feng Jing ◽  
Dongxia Hu ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Laser System ◽  
Power Balance ◽  
Inertial Confinement ◽  
Fusion Research ◽  
Laser Performance ◽  
Laser Driver ◽  
Confinement Fusion ◽  
Laser Facility ◽  
Better Than

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.

scholarly journals OMEGA Upgrade laser for direct-drive target experiments

1993 ◽  
Vol 11 (2) ◽  
pp. 317-321 ◽  
Author(s):  
J.M. Soures ◽  
R.L. McCrory ◽  
T.R. Boehly ◽  
R.S. Craxton ◽  
S.D. Jacobs ◽  
...  
Keyword(s):  
Pulse Shape ◽  
Inertial Confinement Fusion ◽  
Pulse Shaping ◽  
Laser System ◽  
Beam Power ◽  
Power Balance ◽  
Inertial Confinement ◽  
Design Rationale ◽  
Direct Drive ◽  
Confinement Fusion

Validation of the direct-drive approach to inertial confinement fusion requires the development of a 351-nm wavelength, 30-kJ, 50-TW laser system with flexible pulse shaping and irradiation uniformity approaching 1%. An upgrade of the existing OMEGA direct-drive facility at Rochester is planned to meet these objectives. In this article, we review the design rationale and specifications of the OMEGA Upgrade laser with particular emphasis on techniques planned to achieve the required degree of beam smoothing, temporal pulse shape, and beam-to-beam power balance.

scholarly journals Efficient acceleration of a dense plasma projectile to hyper velocities in the laser-induced cavity pressure acceleration scheme

2018 ◽  
Vol 36 (1) ◽  
pp. 49-54
Author(s):  
J. Badziak ◽  
E. Krousky ◽  
J. Marczak ◽  
P. Parys ◽  
T. Pisarczyk ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
High Energy ◽  
High Energy Density ◽  
Inertial Confinement ◽  
Cavity Pressure ◽  
Laser Driver ◽  
Confinement Fusion ◽  
Laser Facility ◽  
Moderate Energy ◽  
The Impact

AbstractThe experimental study of the plasma projectile acceleration in the laser-induced cavity pressure acceleration (LICPA) scheme is reported. In the experiment performed at the kilojoule PALS laser facility, the parameters of the projectile were measured using interferometry, a streak camera and ion diagnostics, and the measurements were supported by two-dimensional hydrodynamic simulations. It is shown that in the LICPA accelerator with a 200-J laser driver, a 4-μg gold plasma projectile is accelerated to the velocity of 140 km/s with the energetic acceleration efficiency of 15–19% which is significantly higher than those achieved with the commonly used ablative acceleration and the highest among the ones measured so far for any projectiles accelerated to the velocities ≥100 km/s. This achievement opens the possibility of creation and investigation of high-energy-density matter states with the use of moderate-energy lasers and may also have an impact on the development of the impact ignition approach to inertial confinement fusion.

scholarly journals Target alignment in the Shen-Guang II Upgrade laser facility

2018 ◽  
Vol 6 ◽  
Author(s):  
Lei Ren ◽  
Ping Shao ◽  
Dongfeng Zhao ◽  
Yang Zhou ◽  
Zhijian Cai ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Short Pulse ◽  
Three Dimensional ◽  
Nanosecond Laser ◽  
Alignment Error ◽  
Inertial Confinement ◽  
Pulse Beam ◽  
Rotation Sensor ◽  
Confinement Fusion ◽  
Laser Facility

The Shen-Guang II Upgrade (SG-II-U) laser facility consists of eight high-power nanosecond laser beams and one short-pulse picosecond petawatt laser. It is designed for the study of inertial confinement fusion (ICF), especially for conducting fast ignition (FI) research in China and other basic science experiments. To perform FI successfully with hohlraum targets containing a golden cone, the long-pulse beam and cylindrical hohlraum as well as the short-pulse beam and cone target alignment must satisfy tight specifications (30 and $20~\unicode[STIX]{x03BC}\text{m}$ rms for each case). To explore new ICF ignition targets with six laser entrance holes (LEHs), a rotation sensor was adapted to meet the requirements of a three-dimensional target and correct beam alignment. In this paper, the strategy for aligning the nanosecond beam based on target alignment sensor (TAS) is introduced and improved to meet requirements of the picosecond lasers and the new six LEHs hohlraum targets in the SG-II-U facility. The expected performance of the alignment system is presented, and the alignment error is also discussed.

Design of Neutron Imaging Aperture for Inertial Confinement Fusion in Laser Fusion Research Center

2019 ◽  
Vol 14 (11) ◽  
pp. C11007-C11007
Author(s):  
Z. Chen ◽  
X. Zhang ◽  
F. Wang ◽  
J. Zheng ◽  
X. Wang ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Neutron Imaging ◽  
Research Center ◽  
Laser Fusion ◽  
Inertial Confinement ◽  
Fusion Research ◽  
Confinement Fusion

scholarly journals INERTIAL CONFINEMENT FUSION RESEARCH AT LOS ALAMOS NATIONAL LABORATORY

2009 ◽  
Author(s):  
S. H. Batha ◽  
B. J. Albright ◽  
D. J. Alexander ◽  
Cris W. Barnes ◽  
P. A. Bradley ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
National Laboratory ◽  
Inertial Confinement ◽  
Alamos National Laboratory ◽  
Los Alamos ◽  
Los Alamos National Laboratory ◽  
Fusion Research ◽  
Confinement Fusion

Inertial Confinement Fusion Using the OMEGA Laser System

2011 ◽  
Vol 39 (4) ◽  
pp. 1007-1014 ◽  
Author(s):  
P B Radha ◽  
R Betti ◽  
T R Boehly ◽  
J A Delettrez ◽  
D H Edgell ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Laser System ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Omega Laser

Autonomous pulse shaping method for inertial confinement fusion high power laser facility

2020 ◽  
Vol 161 ◽  
pp. 111983
Author(s):  
Xiaoxia Huang ◽  
Xuewei Deng ◽  
Wei Zhou ◽  
Huaiwen Guo ◽  
Bowang Zhao ◽  
...  
Keyword(s):  
High Power ◽  
Inertial Confinement Fusion ◽  
Pulse Shaping ◽  
Inertial Confinement ◽  
High Power Laser ◽  
Power Laser ◽  
Confinement Fusion ◽  
Laser Facility
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