Vladimir A. Smalyuk

Diamond melting in shock compression experiments at 1 TPa pressures

Marius Millot, F. Coppari, Amy E. Lazicki, Yong-Jae Kim et autres

us (code pays fourni par la source)

Observation of Self-Similarity in the Magnetic Fields Generated by the Ablative Nonlinear Rayleigh-Taylor Instability

Lan Gao, Philip M. Nilson, I. V. Igumenschev, G. Fiksel et autres

Magnetic fields generated by the nonlinear Rayleigh-Taylor growth of laser-seeded three-dimensional broadband perturbations were measured in laser-accelerated planar targets using ultrafast proton radiography. The experimental data show self-similar behavior in the growing cellular magnetic field structures. These observations are consistent with a …

us, gb (code pays fourni par la source)

Influence of the drive design on ablation front hydrodynamic instability growth in a capsule implosion at the National Ignition Facility

Alex A. Do, Seth Davidovits, Nicholas A. Aybar, Salmaan H. Baxamusa et autres

A critical aspect of inertial confinement fusion experiments lies in the control of ablation front instabilities during the implosion process. The growth of Rayleigh–Taylor and Richtmyer–Meshkov instabilities, seeded by target defects, can significantly degrade the performance of the implosion. This study explores …

us, de (code pays fourni par la source)

Key metrics of progress in the NIF ignition implosions and future challenges on the path to higher yields

John D. Lindl, Otto L. Landen, Steven W. Haan, Peter Amendt et autres

Successful demonstration of an implosion that meets the physics metrics for ignition on the National Ignition Facility (NIF) in August 2021 and demonstration of target energy gain G > 1 in December 2022 represented the culmination of more than a decade of …

us (code pays fourni par la source)

Effect on compression of lowering the design adiabat in the SQ-n campaign

K. L. Baker, D. T. Casey, Daniel S. Clark, Riccardo Tommasini et autres

A set of experiments in the SQ-n campaign attempts to increase the compression in layered implosions by reducing the design adiabat from 3.0 down to ∼2.6. The experiments utilize nanocrystalline high density carbon ablators driven by a ramped laser pulse drive. Contrary …

us, de (code pays fourni par la source)

Progress on fusion target gain using 2.2MJ of laser energy at the National Ignition Facility

A. L. Kritcher, Dave Schlossberg, Chris Young, Riccardo Tommasini et autres

Inertial confinement fusion (ICF) with lasers is a leading approach for generating and confining nuclear fusion, and it is the only method to date that has attained target gain and ignition, as defined by the Lawson criterion, in a controlled laboratory setting. …

us, cn, de (code pays fourni par la source)

High-compression implosions based on high density carbon ablator using modified drive and capsule dopant profiles

Riccardo Tommasini, D. T. Casey, Daniel S. Clark, A. Do et autres

Laser-driven inertial fusion experiments have, for the first time, achieved a target gain greater than unity in a laboratory setting [Abu-Shawareb et al., Phys. Rev. Lett. 132, 065102 (2024)]. Despite this breakthrough, the burn-up fraction remains limited to about one-fourth of ideal …

us, de (code pays fourni par la source)

Ultra-fast single-crystal CVD diamonds in the particle time-of-flight (PTOF) detector for low yield burn-history measurements on the NIF (invited)

B. L. Reichelt, R. Kishimori, Y. Lawrence, C. W. Wink et autres

The Particle Time of Flight (PTOF) diagnostic is a chemical vapor deposition diamond-based detector and is the only diagnostic for measuring nuclear bang times of low yield (<1013) shots on the National Ignition Facility. Recently, a comprehensive study of detector impulse responses …

us (code pays fourni par la source)

Present understanding of ignition and gain using indirect-drive inertial confinement fusion target designs on the U.S. National Ignition Facility

O. A. Hurricane, Anthony Allen, B. Bachmann, K. L. Baker et autres

Abstract For many decades, the running joke in fusion research has been that ‘fusion’ is thirty years away and always will be. Yet, these past few years we find ourselves in a position where we can now talk about the milestones of …

us, de (code pays fourni par la source)

Study of shocks and ablation front in diamond ablator during a capsule implosion experiment at the National Ignition Facility

A. Do, E. L. Dewald, Marius Millot, Christopher R. Weber et autres

us (code pays fourni par la source)

Frustraum 1100 experimental campaign on the national ignition facility

K. L. Baker, P. A. Amendt, Derek A. Mariscal, H. Sio et autres

us (code pays fourni par la source)

Diagnosing inertial confinement fusion ignition

A. S. Moore, L. Divol, B. Bachmann, R. M. Bionta et autres

Abstract Fusion ignition by inertial confinement requires compression and heating of the fusion fuel to temperatures in excess of 5 keV and densities exceeding hundreds of g/cc. In August 2021, this scientific milestone was surpassed at the National Ignition Facility (NIF), when …

us (code pays fourni par la source)