The investigation and control of ultrafast physical processes in nature call for ever shorter flashes of light. The present state of the art is high-order harmonic generation (HHG) from gas medium1, providing extreme ultraviolet (XUV) and X-ray pulses with durations in the attosecond regime, the temporal scale of electron motion in atoms and molecules.
Another successful experimental period have been finished on the German fusion device, Wendelstein 7-X. Plasma discharges longer than ever have been recorded by the video diagnostic and beam emission spectroscopy developed by Wigner Research Centre.
László Gránásy, Széchenyi Award winner researcher of the Wigner Research Centre for Physics, of the Hungarian Academy of Sciences, Budapest and his computational materials science team in cooperation with the German scientists (Igor Zlotnikov’s team at the Department of Molecular Bio-Engineering, at the Technical University of Dresden) investigates how far the mathematical methods developed in materials science can be applied for modelling solidification processes in biological systems.
The current experimental cycle has been launched on the world’s largest stellarator. During the next four month Wendelstein 7-X will produce longer and higher energy plasma discharges then before, thanks to the numerous upgrades and the experiences from the last two years. Contrary to the 30s long plasma discharges archived during the last campaign, now they expecting 100s long plasmas.
Anyone can search for intergalactic particles! You can do it even with your mobile phone! When a particle with an energy of the highest order observed in the Universe approaches from the depths of the cosmos, it initiates a spectacular phenomenon in the Earth's atmosphere: a gigantic cascade of secondary particles, called an extensive air shower. After reaching the Earth, a cascade caused by a single particle can cover the surface of even a large agglomeration.