Weak collisionless shocks in laser-plasmas
Plasma Physics and Controlled Fusion IOP Publishing 57:4 (2015) 044008
Ultrabright X-ray laser scattering for dynamic warm dense matter physics
Nature Photonics Springer Nature 9:4 (2015) 274-279
Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma.
Nature communications 6 (2015) 6397-6397
Abstract:
The rate at which atoms and ions within a plasma are further ionized by collisions with the free electrons is a fundamental parameter that dictates the dynamics of plasma systems at intermediate and high densities. While collision rates are well known experimentally in a few dilute systems, similar measurements for nonideal plasmas at densities approaching or exceeding those of solids remain elusive. Here we describe a spectroscopic method to study collision rates in solid-density aluminium plasmas created and diagnosed using the Linac Coherent light Source free-electron X-ray laser, tuned to specific interaction pathways around the absorption edges of ionic charge states. We estimate the rate of collisional ionization in solid-density aluminium plasmas at temperatures ~30 eV to be several times higher than that predicted by standard semiempirical models.Simulation of density measurements in plasma wakefields using photon acceleration
Physical Review Accelerators and Beams American Physical Society (APS) 18:3 (2015) 032801