A5079658556- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Laser Design and Applications
- Nuclear Physics and Applications
- Plasma Diagnostics and Applications
- Particle Accelerators and Free-Electron Lasers
Czech Technical University in Prague
2021-2025
Extreme Light Infrastructure Beamlines
2023-2025
Czech Academy of Sciences, Institute of Physics
2021
The evolution of a nitrogen plasma discharge in tube with an inner diameter 9.2 mm, excited by particular pulse shape, is studied to suppress ablation from the wall. Excitation realized two current pulses. first one long pre-ionization pulse, which guarantees stability column, and second higher causes detachment modeled using magneto-hydrodynamic code NPINCH approximations: (1) non-ablative (2) strongly ablative walls. time dependences optical radiation power direction along axis are...
We demonstrate a method to characterize the beam energy, transverse profile, charge, and dose of pulsed electron generated by 1 kHz TW laser-plasma accelerator. The is based on imaging with scintillating screen in an inhomogeneous, orthogonal magnetic field produced wide-gap dipole. Numerical simulations were developed reconstruct parameters accurately. has been experimentally verified calibrated using medical LINAC. energy measurement accuracy 6–20 MeV range proven be better than 10%....
Time dependencies of the electrical resistance and electron density evolution in discharge a tube, with nitrogen at different pressures, diameter 9.2mm length 10cm were studied. A current pulse an amplitude 500A duration 10μs has created tube. Instantaneous densities are estimated from interference pattern Mach–Zehnder interferometer using femtosecond Ti: sapphire laser beam. Laboratory results compared computer modelling by MHD codes NPINCH ZSTAR. development according to experiment is...
Electron-laser colliders are a unique tool to investigate different fundamental phenomena, as for example the Breit-Wheeler process. Several experiments working in this direction of now, both based on conventional electron accelerator technology or all-optical schemes. In landscape high power laser facilities, ELI-Beamlines has two lasers which have potential enable laser-electron collisions at unprecedented parameters: L3-HAPLS (30 J, 30 fs, 10 Hz) and L4-Aton (1.5 kJ, 150 100s shots/day)....