Kinetic simulations of stimulated Raman backscattering and related processes for the shock-ignition approach to inertial confinement fusion

2011 ◽  
Vol 18 (9) ◽  
pp. 092701 ◽  
Author(s):  
C. Riconda ◽  
S. Weber ◽  
V. T. Tikhonchuk ◽  
A. Héron
Keyword(s):  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Stimulated Raman Backscattering ◽  
Stimulated Raman ◽  
Shock Ignition

scholarly journals Progress in understanding the role of hot electrons for the shock ignition approach to inertial confinement fusion

2018 ◽  
Vol 59 (3) ◽  
pp. 032012 ◽  
Author(s):  
D. Batani ◽  
L. Antonelli ◽  
F. Barbato ◽  
G. Boutoux ◽  
A. Colaïtis ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Hot Electrons ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Shock Ignition

Controlling stimulated Raman scattering by two-color light in inertial confinement fusion

2017 ◽  
Vol 24 (8) ◽  
pp. 082704 ◽  
Author(s):  
Z. J. Liu ◽  
Y. H. Chen ◽  
C. Y. Zheng ◽  
L. H. Cao ◽  
B. Li ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Inertial Confinement Fusion ◽  
Stimulated Raman Scattering ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Stimulated Raman

Reducing reflectivity of stimulated Raman scattering by discretely changing phase of incident light in inertial fusion plasmas

2021 ◽  
Author(s):  
Tian Yang ◽  
Shutong Zhang ◽  
yuanzhi Zhou ◽  
Deji Liu ◽  
Xueming Li ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Inertial Confinement Fusion ◽  
Stimulated Raman Scattering ◽  
Brillouin Scattering ◽  
Incident Light ◽  
Inertial Confinement ◽  
Fusion Plasmas ◽  
Confinement Fusion ◽  
Coupling Equations ◽  
Stimulated Raman

Abstract A new method to reduce the stimulated Raman scattering (SRS) in inertial confinement fusion conditions is proposed by changing the incident light phase discretely. The proposal is first examined by three-wave coupling equations and then verified by Vlasov simulations. A remarkable decreasing in SRS reflectivity is observed when the period of phase changing is less than 2π/γ, where γ is the growth rate of SRS. By contrast, some simulations with continuously changing phase of incident light are carried out to compare their influence on SRS. In addition, the proposal may suppress the stimulated Brillouin scattering.

scholarly journals Irradiation uniformity at the Laser MegaJoule facility in the context of the shock ignition scheme

2014 ◽  
Vol 2 ◽  
Author(s):  
Mauro Temporal ◽  
Benoit Canaud ◽  
Warren J. Garbett ◽  
Rafael Ramis ◽  
Stefan Weber
Keyword(s):  
Inertial Confinement Fusion ◽  
Three Dimensional ◽  
Inertial Confinement ◽  
Direct Drive ◽  
Azimuthal Component ◽  
Hydrodynamic Simulations ◽  
Available Energy ◽  
Confinement Fusion ◽  
Hydrodynamic Calculations ◽  
Shock Ignition

AbstractThe use of the Laser MegaJoule facility within the shock ignition scheme has been considered. In the first part of the study, one-dimensional hydrodynamic calculations were performed for an inertial confinement fusion capsule in the context of the shock ignition scheme providing the energy gain and an estimation of the increase of the peak power due to the reduction of the photon penetration expected during the high-intensity spike pulse. In the second part, we considered a Laser MegaJoule configuration consisting of 176 laser beams that have been grouped providing two different irradiation schemes. In this configuration the maximum available energy and power are 1.3 MJ and 440 TW. Optimization of the laser–capsule parameters that minimize the irradiation non-uniformity during the first few ns of the foot pulse has been performed. The calculations take into account the specific elliptical laser intensity profile provided at the Laser MegaJoule and the expected beam uncertainties. A significant improvement of the illumination uniformity provided by the polar direct drive technique has been demonstrated. Three-dimensional hydrodynamic calculations have been performed in order to analyse the magnitude of the azimuthal component of the irradiation that is neglected in two-dimensional hydrodynamic simulations.

Interaction physics for the shock ignition scheme of inertial confinement fusion targets

2011 ◽  
Vol 53 (12) ◽  
pp. 124034 ◽  
Author(s):  
S Depierreux ◽  
C Goyon ◽  
K Lewis ◽  
H Bandulet ◽  
D T Michel ◽  
...  
Keyword(s):  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Shock Ignition

scholarly journals Multibeam Stimulated Raman Scattering in Inertial Confinement Fusion Conditions

2015 ◽  
Vol 115 (5) ◽  
Author(s):  
P. Michel ◽  
L. Divol ◽  
E. L. Dewald ◽  
J. L. Milovich ◽  
M. Hohenberger ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Inertial Confinement Fusion ◽  
Stimulated Raman Scattering ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Stimulated Raman
Sign in / Sign up

Export Citation Format

Share Document