205 citations · 514 across the 23 of their papers we have counts for
23 papers
High brilliance -ray generation from the laser interaction in a carbon plasma channel
Christian Heppe, Naveen Kumar
The generation of collimated, high brilliance -ray beams from a structured plasma channel target is studied by means of 2D PIC simulations. Simulation results reveal an optimum…
Radiation pressure acceleration of protons from structured thin-foil targets
Tim Arniko Meinhold, Naveen Kumar
The process of radiation pressure acceleration (RPA) of ions is investigated with the aim of suppressing the Rayleigh-Taylor like transverse instabilities in laser-foil interaction…
Non-thermal particle acceleration at highly oblique non-relativistic shocks
Naveen Kumar, Brian Reville
The non-thermal acceleration of electrons and ions at an oblique, non-relativistic shock is studied using large scale particle-in-cell (PIC) simulations in one spatial dimension. P…
COV-ELM classifier: An Extreme Learning Machine based identification of COVID-19 using Chest X-Ray Images
Sheetal Rajpal, Manoj Agarwal, Ankit Rajpal +3
Coronaviruses constitute a family of viruses that gives rise to respiratory diseases. As COVID-19 is highly contagious, early diagnosis of COVID-19 is crucial for an effective trea…
Pair-beam propagation in a magnetised plasma for modelling the polarized radiation emission from gamma-ray bursts in laboratory astrophysics experiments
Ujjwal Sinha, Naveen Kumar
The propagation of a relativistic electron-positron beam in a magnetized electron-ion plasma is studied, focusing on the polarization of the radiation generated in this case. Speci…
Electronic parametric instabilities of an ultrarelativistic laser pulse in a plasma
Ferdinand Gleixner, Naveen Kumar
Electronic parametric instabilities of an ultrarelativistic circularly polarized laser pulse propagating in underdense plasmas are studied by numerically solving the dispersion rel…