26 citations · 55 across the 8 of their papers we have counts for
8 papers
Expansion of a radial plasma blast shell into an ambient plasma
M E Dieckmann, D Doria, H Ahmed +6
The expansion of a radial blast shell into an ambient plasma is modeled with a particle-in-cell (PIC) simulation. The unmagnetized plasma consists of electrons and protons. The for…
A thin-shell instability in collisionless plasma
M. E. Dieckmann, H. Ahmed, D. Doria +6
The thin-shell instability has been named as one process, which can generate entangled structures in astrophysical plasma on collisional (fluid) scales. It is driven by a spatially…
Beamed neutron emission driven by laser accelerated light ions
S. Kar, A. Green, H. Ahmed +18
We report on the experimental observation of beam-like neutron emission with peak flux of the order of 10^9 n/sr, from light nuclei reactions in a pitcher-catcher scenario, by empl…
Ultrafast opacity in borosilicate glass induced by picosecond bursts of laser-driven ions
B. Dromey, L. Stella, D. Adams +22
Direct investigation of ion-induced dynamics in matter on picosecond (ps, 10-12 s) timescales has been precluded to date by the relatively long nanosecond (ns, 10-9 s) scale ion pu…
Femtosecond-scale Synchronisation of Ultra-Intense Focused Laser Beams
D. J. Corvan, W. Schumaker, J. Cole +10
Synchronising ultra-short (~fs) and focussed laser pulses is a particularly difficult task, as this timescale lies orders of magnitude below the typical range of fast electronic de…
Buffered spectrally-peaked proton beams in the relativistic-transparency regime
N. P. Dover, M. J. V. Streeter, C. A. J. Palmer +23
Spectrally-peaked proton beams ( MeV, MeV) have been observed from the interaction of an intense laser ( Wcm) with ultrathin CH foi…
The evolution of a slow electrostatic shock into a plasma shock mediated by electrostatic turbulence
Mark Eric Dieckmann, Gianluca Sarri, Domenico Doria +2
The collision of two plasma clouds at a speed that exceeds the ion acoustic speed can result in the formation of shocks. This phenomenon is observed not only in astrophysical scena…
Parametric study of non-relativistic electrostatic shocks and the structure of their transition layer
ME Dieckmann, H Ahmed, G Sarri +5
Nonrelativistic electrostatic unmagnetized shocks are frequently observed in laboratory plasmas and they are likely to exist in astrophysical plasmas. Their maximum speed, expresse…