Performance of large-aperture optical switches for high-energy inertial-confinement fusion lasers

1995 ◽  
Vol 34 (24) ◽  
pp. 5312 ◽  
Author(s):  
Mark A. Rhodes ◽  
B. Woods ◽  
J. J. DeYoreo ◽  
D. Roberts ◽  
L. J. Atherton
Keyword(s):  
Inertial Confinement Fusion ◽  
High Energy ◽  
Optical Switches ◽  
Inertial Confinement ◽  
Large Aperture ◽  
Confinement Fusion

Performance of a prototype for a large-aperture multipass Nd:glass laser for inertial confinement fusion

1997 ◽  
Vol 36 (21) ◽  
pp. 4932 ◽  
Author(s):  
Bruno M. Van Wonterghem ◽  
John R. Murray ◽  
Jack H. Campbell ◽  
D. Ralph Speck ◽  
Charles E. Barker ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
Large Aperture ◽  
Confinement Fusion ◽  
Nd:Glass Laser

X‐ray spectroscopy of high‐energy density inertial confinement fusion plasmas

1993 ◽  
Vol 5 (9) ◽  
pp. 3328-3336 ◽  
Author(s):  
C. J. Keane ◽  
B. A. Hammel ◽  
D. R. Kania ◽  
J. D. Kilkenny ◽  
R. W. Lee ◽  
...  
Keyword(s):  
Energy Density ◽  
Inertial Confinement Fusion ◽  
High Energy ◽  
High Energy Density ◽  
Inertial Confinement ◽  
Fusion Plasmas ◽  
X Ray ◽  
Confinement Fusion

scholarly journals High energy electron radiography scheme with high spatial and temporal resolution in three dimension based on a e-LINAC

2016 ◽  
Vol 34 (2) ◽  
pp. 338-342 ◽  
Author(s):  
Y. Zhao ◽  
Z. Zhang ◽  
W. Gai ◽  
Y. Du ◽  
S. Cao ◽  
...  
Keyword(s):  
Electron Beam ◽  
Temporal Resolution ◽  
Inertial Confinement Fusion ◽  
High Energy ◽  
High Energy Density ◽  
Inertial Confinement ◽  
Three Dimension ◽  
Scattered Electron ◽  
Electron Linear Accelerator ◽  
Confinement Fusion

AbstractWe present a scheme of electron beam radiography to dynamically diagnose the high energy density (HED) matter in three orthogonal directions simultaneously based on electron Linear Accelerator. The dynamic target information such as, its profile and density could be obtained through imaging the scattered electron beam passing through the target. Using an electron bunch train with flexible time structure, a very high temporal evolution could be achieved. In this proposed scheme, it is possible to obtain 1010 frames/second in one experimental event, and the temporal resolution can go up to 1 ps, spatial resolution to 1 µm. Successful demonstration of this concept will have a major impact for both future inertial confinement fusion science and HED physics research.

scholarly journals High energy x-ray imager for inertial confinement fusion at the National Ignition Facility

2006 ◽  
Vol 77 (10) ◽  
pp. 10E301 ◽  
Author(s):  
Riccardo Tommasini ◽  
Jeffrey A. Koch ◽  
Bruce Young ◽  
Ed Ng ◽  
Tom Phillips ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
High Energy ◽  
Inertial Confinement ◽  
National Ignition Facility ◽  
X Ray ◽  
Confinement Fusion

Thermal Transfiguration Analysis for the Large Aperture Optical Element of Switchyard in ICF Driver Target Area

2010 ◽  
Author(s):  
Yi Zhou ◽  
Ping Yang ◽  
Junwei Zhang ◽  
Hai Zhou
Keyword(s):  
Temperature Distribution ◽  
Temperature Difference ◽  
Inertial Confinement Fusion ◽  
Optical Element ◽  
Element Model ◽  
Target Area ◽  
Inertial Confinement ◽  
Optical Elements ◽  
Large Aperture ◽  
Confinement Fusion

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.

scholarly journals Direct observation of imploded core heating via fast electrons with super-penetration scheme

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
T. Gong ◽  
H. Habara ◽  
K. Sumioka ◽  
M. Yoshimoto ◽  
Y. Hayashi ◽  
...  
Keyword(s):  
Electron Beam ◽  
Direct Observation ◽  
Inertial Confinement Fusion ◽  
Short Pulse ◽  
Coupling Efficiency ◽  
High Energy ◽  
Inertial Confinement ◽  
Particle In Cell ◽  
Short Pulse Laser ◽  
Confinement Fusion

AbstractFast ignition (FI) is a promising approach for high-energy-gain inertial confinement fusion in the laboratory. To achieve ignition, the energy of a short-pulse laser is required to be delivered efficiently to the pre-compressed fuel core via a high-energy electron beam. Therefore, understanding the transport and energy deposition of this electron beam inside the pre-compressed core is the key for FI. Here we report on the direct observation of the electron beam transport and deposition in a compressed core through the stimulated Cu Kα emission in the super-penetration scheme. Simulations reproducing the experimental measurements indicate that, at the time of peak compression, about 1% of the short-pulse energy is coupled to a relatively low-density core with a radius of 70 μm. Analysis with the support of 2D particle-in-cell simulations uncovers the key factors improving this coupling efficiency. Our findings are of critical importance for optimizing FI experiments in a super-penetration scheme.

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