scholarly journals Tools for Predicting Optical Damage on Inertial Confinement Fusion-Class Laser Systems

2010 ◽  
Author(s):  
M Nostrand ◽  
C Carr ◽  
Z Liao ◽  
J Honig ◽  
M Spaeth ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
Optical Damage ◽  
Confinement Fusion ◽  
Laser Systems

scholarly journals An overview of Aurora: a multi-kilojoule KrF laser system for inertial confinement fusion

1986 ◽  
Vol 4 (1) ◽  
pp. 55-70 ◽  
Author(s):  
Louis A. Rosocha ◽  
Pleas S. Bowling ◽  
Michael D. Burrows ◽  
Michael Kang ◽  
John Hanlon ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Large Scale ◽  
Short Pulse ◽  
Laser System ◽  
Laser Pulses ◽  
Inertial Confinement ◽  
Laser Amplifiers ◽  
Krf Laser ◽  
Confinement Fusion ◽  
Laser Systems

Aurora is a short-pulse high-power krypton-fluoride laser system that serves as an end-to-end technology demonstration prototype for large-scale ultraviolet laser systems of interest for short wavelength inertial confinement fusion (ICF) studies. The system is designed to employ optical angular multiplexing and serial amplification by electron-beam-driven KrF laser amplifiers to deliver 248 nm, 5-ns duration multi-kilojoule laser pulses to ICF targets using a beam train of approximately 1 km in length.In this paper, we will discuss the goals for the system and summarize the design features of the major system components: front-end lasers, amplifier train, optical train, and the alignment and controls systems.

scholarly journals Studies in the nonlinear evolution of the Rayleigh–Taylor and Richtmyer–Meshkov instabilities and their role in inertial confinement fusion

1999 ◽  
Vol 17 (3) ◽  
pp. 465-475 ◽  
Author(s):  
D. ORON ◽  
O. SADOT ◽  
Y. SREBRO ◽  
A. RIKANATI ◽  
Y. YEDVAB ◽  
...  
Keyword(s):  
Turbulent Mixing ◽  
Inertial Confinement Fusion ◽  
Random Perturbation ◽  
Fusion Energy ◽  
Inertial Confinement ◽  
Hydrodynamic Instabilities ◽  
Power Laser ◽  
Mechanics Model ◽  
Confinement Fusion ◽  
Laser Systems

Hydrodynamic instabilities, such as the Rayleigh–Taylor and Richtmyer–Meshkov instabilities, play a central role when trying to achieve net thermonuclear fusion energy via the method of inertial confinement fusion (ICF). The development of hydrodynamic instabilities on both sides of the compressed shell may cause shell breakup and ignition failure. A newly developed statistical mechanics model describing the evolution of the turbulent mixing zone from an initial random perturbation is presented. The model will be shown to compare very well both with full numerical simulations and with experiments, performed using high power laser systems, and using shock tubes. Applying the model to typical ICF implosion conditions, an estimation of the maximum allowed target, in-flight aspect ratio as a function of equivalent surface roughness, will be derived.

scholarly journals Adaptive optics system for solid state laser systems used in inertial confinement fusion

1995 ◽  
Author(s):  
J. Thaddeus Salmon ◽  
Erlan S. Bliss ◽  
Jerry L. Byrd ◽  
Mark Feldman ◽  
Michael W. Kartz ◽  
...  
Keyword(s):  
Solid State ◽  
Adaptive Optics ◽  
Inertial Confinement Fusion ◽  
Solid State Laser ◽  
Inertial Confinement ◽  
State Laser ◽  
Confinement Fusion ◽  
Laser Systems ◽  
Adaptive Optics System

scholarly journals Insulator Materials in High Power Lasers for Inertial Fusion: Present and Future

1983 ◽  
Vol 24 ◽  
Author(s):  
William F. Krupke
Keyword(s):  
Inertial Confinement Fusion ◽  
Critical Role ◽  
Average Power ◽  
High Peak Power ◽  
Inertial Confinement ◽  
Single Shot ◽  
Confinement Fusion ◽  
Power Loading ◽  
Laser Systems ◽  
Stringent Performance

ABSTRACTDielectric insulator materials have played a critical role in the development of high peak power solid state lasers for use in inertial confinement fusion research: as laser gain media; as transparent substrates for lenses, mirrors, and polarizers; and as active optical materials in nonlinear harmonic generators and electro-optical devices. Materials have been developed which have exceptionally high resistance to damage in the presence of intense optical beams (> GW/cm2) and which possess other properties which optimize their functions in the laser systems. Fusion lasers built to date have been designed for “single shot” operation, and the dielectric insulator materials developed for use in them have had to function under only extremely low average power loading. As we look to the future, fusion laser systems will be required to operate repetitively (few Hz) and deliver high average power output (> MW) at an efficiency greater than 10 percent. Insulator materials for use in these systems must be selected and developed on the basis of their combined mechanical, thermal, and optical properties. In this presentation, I will summarize the important characteristics of currently used insulator materials, identify figures of merit for materials needed in future systems, and outline a methodology for identifying and evaluating new materials meeting the stringent performance requirements of future fusion laser systems.

FM-to-AM modulations induced by a weak residual reflection stack of sine-modulated pulses in inertial confinement fusion laser systems

Laser Physics ◽  
2018 ◽  
Vol 28 (2) ◽  
pp. 025001 ◽  
Author(s):  
Xiaoxia Huang ◽  
Xuewei Deng ◽  
Wei Zhou ◽  
Dongxia Hu ◽  
Huaiwen Guo ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Laser Systems

Analysis of electroless nickel thin films

1991 ◽  
Vol 49 ◽  
pp. 510-511 ◽  
Author(s):  
C. W. Price ◽  
E. F. Lindsey
Keyword(s):  
Thin Films ◽  
Inertial Confinement Fusion ◽  
Electroless Nickel ◽  
Inertial Confinement ◽  
Plating Bath ◽  
X Ray ◽  
Nickel Thin Films ◽  
Nickel Deposits ◽  
Confinement Fusion ◽  
Thickness Measurements

Thickness measurements of thin films are performed by both energy-dispersive x-ray spectroscopy (EDS) and x-ray fluorescence (XRF). XRF can measure thicker films than EDS, and XRF measurements also have somewhat greater precision than EDS measurements. However, small components with curved or irregular shapes that are used for various applications in the the Inertial Confinement Fusion program at LLNL present geometrical problems that are not conducive to XRF analyses but may have only a minimal effect on EDS analyses. This work describes the development of an EDS technique to measure the thickness of electroless nickel deposits on gold substrates. Although elaborate correction techniques have been developed for thin-film measurements by x-ray analysis, the thickness of electroless nickel films can be dependent on the plating bath used. Therefore, standard calibration curves were established by correlating EDS data with thickness measurements that were obtained by contact profilometry.

scholarly journals Pulsed power indirect drive approach to inertial confinement fusion

2020 ◽  
Vol 36 ◽  
pp. 100749 ◽  
Author(s):  
R.E. Olson ◽  
R.J. Leeper ◽  
S.H. Batha ◽  
R.R. Peterson ◽  
P.A. Bradley ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Pulsed Power ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Indirect Drive

Shell mass effect on the hot-spot pressure in inertial confinement fusion implosion

2021 ◽  
Vol 28 (3) ◽  
pp. 032713
Author(s):  
Dongguo Kang ◽  
Huasen Zhang ◽  
Shiyang Zou ◽  
Wudi Zheng ◽  
Shaoping Zhu ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Hot Spot ◽  
Mass Effect ◽  
Inertial Confinement ◽  
Shell Mass ◽  
Confinement Fusion
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