Monochromatic and quasi-monochromatic x-ray backlighting is a proven diagnostic technique with many important applications in Inertial Confinement Fusion and related research work. The quasi-monochromatic x-ray source can also be used in the x-ray absorption spectroscopy. A quasi-monochromatic x-ray backlighting system in the spectral range of 7.9 – 9.4 Å (1.32 1.57 keV) range has been develope...

LLE Review, Volume 74 113 Laser–plasma instabilities1 are important in the field of inertial confinement fusion2 because they scatter laser light away from the target, which reduces the laser energy available to drive the compression of the nuclear fuel, or generate energetic electrons that preheat the fuel, which makes the fuel harder to compress. In stimulated Raman scattering an incident, or...

RPIC is a reduced-description particle-in-cell code designed to investigate laser-plasma instabilities in physical systems with vastly-different time scales prevalent under Inertial Confinement Fusion (ICF) conditions [1]. Such time scales include the laser, Langmuir, and ion acoustic time scales. In past literature, laser-plasma instability phenomena involving these disparate scales have mostl...

The SRS of a short laser pulse is important in the contexts of particle acceleration2 and inertial confinement fusion.3,4 In previous studies of the spatiotemporal evolution of SRS,5–13 the Stokes waves were allowed to pass freely through the pulse boundaries. However, the radial ponderomotive force associated with the pulse can expel plasma from the neighborhood of the pulse axis, in which cas...

A novel ignition hohlraum for indirect-drive inertial confinement fusion is proposed, which is named three-axis cylindrical hohlraum (TACH). TACH is a kind of 6 laser entrance holes (LEHs) hohlraum, which is orthogonally jointed of three cylindrical hohlraums. Laser beams are injected through every entrance hole with the same incident angle of 55°. A view-factor simulation result shows that the...

in isobaric models for inertial confinement fusion it is assumed that the target configurationat stagnation time (maximum compression) consists of two regions, hot spark and cold fuel, respectively.here the conditions of spark formation and ignition in hydrogen equimolar isotopes in central sparkignition are investigated and permissible values of hs and ts are evaluated numerically. by introduc...

The performance of direct-drive inertial confinement fusion implosions relies critically on the coupling laser energy to target plasma. Cross-beam transfer (CBET), resonant exchange between intersecting beams mediated by ponderomotively driven ion-acoustic waves (IAW), inhibits this scattering light into unwanted directions. variety beam intersection angles and varying plasma conditions in an i...

recent experiments on the spherical tokamak have discovered the conditions to create a powerful plasma and ensure easy shaping and amplification of stability, high bootstrap current and confinement energy. the spherical tours (st) fusion energy development path is complementary to the tokamak burning plasma experiment such as nstx and higher toroidal beta regimes and improves the design of a po...

Abstract Recent inertial confinement fusion experiments have shown primary spectral moments which are incompatible with a Maxwellian velocity distribution description. These results show that an ion kinetic description of the reacting ions is necessary. We develop theoretical classification non-Maxwellian distributions using moments. At mesoscopic level, monoenergetic decomposition reveals ther...