307 citations · 600 across the 11 of their papers we have counts for
11 papers
Narrow bandwidth, low-emittance positron beams from a laser-wakefield accelerator
M. J. V. Streeter, C. Colgan, N. Cavanagh +15
The rapid progress that plasma wakefield accelerators are experiencing is now posing the question as to whether they could be included in the design of the next generation of high-…
Calibration of BAS-TR image plate response to GeV gold ions
D. Doria, P. Martin, H. Ahmed +17
The response of the BAS-TR image plate (IP) was absolutely calibrated using CR-39 track detector for high linear energy transfer (LET) Au ions up to 1.6 GeV (8.2 MeV/nucleon)…
Ultrashort PW laser pulse interaction with target and ion acceleration
S. Ter-Avetisyan, P. K. Singh, K. F. Kakolee +6
We present the experimental results on ion acceleration by petawatt femtosecond laser solid interaction and explore strategies to enhance ion energy. The irradiation of micrometer…
Shocks in unmagnetized plasma with a shear flow: Stability and magnetic field generation
M. E. Dieckmann, A. Bock, H. Ahmed +4
A pair of curved shocks in a collisionless plasma is examined with a two-dimensional particle-in-cell (PIC) simulation. The shocks are created by the collision of two electron-ion…
Calibration of Time Of Flight Detectors Using Laser-driven Neutron Source
S. R. Mirfayzi, S. Kar, H. Ahmed +17
Calibration of three scintillators (EJ232Q, BC422Q and EJ410) in a time-of-flight (TOF) arrangement using a laser drive-neutron source is presented. The three plastic scintillator…
Selective Deuterium Ion Acceleration Using the Vulcan PW Laser
AG Krygier, JT Morrison, S Kar +17
We report on the successful demonstration of selective acceleration of deuterium ions by target-normal sheath acceleration (TNSA) with a high-energy petawatt laser. TNSA typically…
Characterisation of deuterium spectra from laser driven multi-species sources by employing differentially filtered image plate detectors in Thomson spectrometers
A. Alejo, S. Kar, H. Ahmed +23
A novel method for characterising the full spectrum of deuteron ions emitted by laser driven multi-species ion sources is discussed. The procedure is based on using differential fi…
Ultra-high brilliance multi-MeV -ray beam from non-linear Thomson scattering
G. Sarri, D. J. Corvan, W. Schumaker +13
We report on the generation of a narrow divergence ( mrad), multi-MeV ( MeV) and ultra-high brilliance ( photons s m…
Time-resolved characterization of the formation of a collisionless shock
H Ahmed, ME Dieckmann, L Romagnani +11
We report on the temporally and spatially resolved detection of the precursory stages that lead to the formation of an unmagnetized, supercritical collision-less shock in a laser-d…
Soft X-ray harmonic comb from relativistic electron spikes
A. S. Pirozhkov, M. Kando, T. Zh. Esirkepov +37
We demonstrate a new high-order harmonic generation mechanism reaching the `water window' spectral region in experiments with multi-terawatt femtosecond lasers irradiating gas jets…
X-ray harmonic comb from relativistic electron spikes
Alexander S. Pirozhkov, Masaki Kando, Timur Zh. Esirkepov +24
X-ray devices are far superior to optical ones for providing nanometre spatial and attosecond temporal resolutions. Such resolution is indispensable in biology, medicine, physics,…