Top arrow pointing up

Resources

Resources

Ablating Ion Velocity Distributions in Short-Pulse-Heated Solids via X-Ray Doppler Shifts

Dec 2, 2022. Publications

Abstract

Solids ablate under laser irradiation, but experiments have not previously characterized the initiation of this process at ultrarelativistic laser intensities. We present first measurements of bulk ion velocity distributions as ablation begins, captured as a function of depth via Doppler-shifted x-ray line emission from two viewing angles. Bayesian analysis indicates that bulk ions are either nearly stationary or flowing outward at the plasma sound speed. The measurements quantitatively constrain the laser-plasma ablation mechanism, suggesting that a steplike electrostatic potential structure drives solid disassembly. 

DOI: https://doi.org/10.1103/PhysRevLett.129.235001

More From Publications

Jan 16, 2023    Publications

Non-thermal electron acceleration from magnetically driven reconnection in a laboratory plasma

A. Chien, L Gao, S. Zhang, H. Ji, E. G. Blackman, W. Daughton, A. Stanier, A. Le, F. Guo, R. Follett, H. Chen, G....

Read more

Dec 28, 2022    Publications

A Flexible Proton Beam Imaging Energy Spectrometer (PROBIES) for High Repetition Rate or Single-Shot High Eenergy Density (HED) experiments

D. A. Mariscal, B. Z. Djordjević, R. Anirudh, T. Bremer, P. C. Campbell, S. Feister, E. Folsom, E. S. Grace, R....

Read more

Nov 3, 2022    Publications

Ultra-compact x-ray spectrometer for high-repetition-rate laser–plasma experiments

G. Zeraouli, D. Mariscal, E. Grace, G. G. Scott, K. K. Swanson, R. Simpson, B. Z. Djordjevic, R. Nedbailo, H....

Read more

Oct 31, 2022    Publications

Applications of machine learning to a compact magnetic spectrometer for high repetition rate, laser-driven particle acceleration

K. K. Swanson, D. A. Mariscal, B. Z. Djordjevic, G. Zeraouli, G. G. Scott, R. Hollinger, S. Wang, H. Song, B....

Read more

Oct 13, 2022    Publications

Investigation of Proton Beam-Driven Fusion Reactions Generated by an Ultra-Short Petawatt-Scale Laser Pulse

M. S. Schollmeier, V. Shirvanyan, C. Capper, S. Steinke, A. Higginson, R. Hollinger, J. T. Morrison, R. Nedbailo,...

Read more

Sep 21, 2022    Publications

Homogeneous, Micron-Scale High-Energy-Density Matter Generated by Relativistic Laser-Solid Interactions

N. F. Beier, H. Allison, P. Efthimion, K. A. Flippo, L. Gao, S. B. Hansen, K. Hill, R. Hollinger, M. Logantha, Y....

Read more