Research

On open questions in astroparticle physics with Jakub Vícha

Where do high-energy cosmic ray particles come from and how can we even learn what they are? Can they open up an opportunity for us to discover completely new physical processes? And can cosmic rays influence the weather? These questions have not been answered yet, but research by Jakub Vícha from the Department of Astroparticle Physics at FZU is bringing us closer to unravelling these mysteries.

A double interview with Helena Reichlova and Barbora Špačková, who have succeeded in tough competition and both won five-year funding for their own Dioscuri centres. They describe, for example, the role they believe social media play in research careers. And they also explain what guides their selection of new collaborators.

Researchers from the Laboratory of Functional Biointerfaces of the Institute of Physics of the Czech Academy of Sciences have advanced the development of a compact, fully portable and fast biosensing device and demonstrated its effectiveness in detecting bacterial and viral pathogens in a wide range of food samples.

Quantum entanglement is a fascinating feature of quantum physics – the theory of the very small. If two particles are quantum-entangled, the state of one particle is tied to that of the other, no matter how far apart the particles are. 

The sensitivity of the SST-1M pair of Cherenkov telescopes at very high energies exceeds that of any existing Cherenkov imaging telescope in the world. This surprising news was presented at a conference in Milan by Jakub Jurýšek. At the Institute of Physics, together with his team, he is developing software that allows stereoscopic reconstruction of observed cosmic gamma-ray showers and subsequent imaging of the sources of these gamma photons in space. 

Extreme and powerful objects in the Universe, such as supermassive black holes and supernovae, emit gamma rays. The Cherenkov Telescope Array Observatory (CTAO) will become the world’s most powerful ground-based observatory in high-energy gamma-ray astronomy. Its Co-Spokesperson Rene Ong, who visited FZU this spring, described the scientific high-energy odyssey.

Scintillation materials play a crucial role wherever ionizing radiation or accelerated particle beams need to be monitored. There are increased requirements on them for example in accelerators in industry, electron beam detection in scanning electron microscopes, or in hybrid detectors for the new generation of medical imaging devices in positron emission tomography. 

The first ground-based wide-field observatory designed to detect very high to ultra-high energy gamma rays in the Southern Hemisphere will be built in the Atacama Astronomical Park in Chile. The observatory will study radiation from space that is emitted by the most extreme objects in the universe, such as black holes and neutron stars, gamma-ray bursts and supernovae.

A research team from the Institute of Physics of the Czech Academy of Sciences led by Zdeněk Hubička and Jiří Olejníček, in collaboration with teams from Japan's Osaka University and New Zealand's Unitec Institute of Technology, have achieved significant progress in the development of ultrafast luminescent layers of zinc oxides.