Dušan Mandát
A5015261103- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Gamma-ray bursts and supernovae
- Particle Detector Development and Performance
- Radio Astronomy Observations and Technology
- Particle physics theoretical and experimental studies
- Atmospheric Ozone and Climate
- Radiation Detection and Scintillator Technologies
- Calibration and Measurement Techniques
- Atmospheric aerosols and clouds
- Pulsars and Gravitational Waves Research
- Adaptive optics and wavefront sensing
- Infrared Target Detection Methodologies
- CCD and CMOS Imaging Sensors
- Astronomical Observations and Instrumentation
- High-Energy Particle Collisions Research
- Radiation Therapy and Dosimetry
- Total Knee Arthroplasty Outcomes
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Optical measurement and interference techniques
- Photocathodes and Microchannel Plates
- Orthopaedic implants and arthroplasty
- Advanced Measurement and Metrology Techniques
Czech Academy of Sciences, Institute of Physics
2016-2025
Czech Academy of Sciences
2015-2024
Universitat de Barcelona
2024
Institut d'Estudis Espacials de Catalunya
2024
Palacký University Olomouc
2008-2023
University of Buenos Aires
2011-2023
Pierre Auger Observatory
2007-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2011-2023
Institute of Scientific and Technical Research for Defense
2016-2023
Universidad Nacional de La Plata
2011-2023
The single-mirror small-size telescope (SST-1M) is one of the three proposed designs for telescopes (SSTs) Cherenkov Telescope Array (CTA) project. SST-1M will be equipped with a 4 m-diameter segmented reflector dish and an innovative fully digital camera based on silicon photo-multipliers. Since SST sub-array consist up to 70 telescopes, challenge not only build excellent performance, but also design them so that their components can commissioned, assembled tested by industry. In this paper...
Abstract The SST-1M (webpage: https://sst-1m.space ) is a Small-Sized Telescope (SST) designed to provide cost-effective and high-performance solution for gamma-ray astrophysics, particularly energies beyond few TeV. goal integrate this telescope into an array of similar instruments, leveraging its lightweight design, earthquake resistance, established Davies-Cotton configuration. Additionally, optical system function without protective dome, allowing it withstand the harsh atmospheric...
We report a measurement of the energy spectrum cosmic rays above $2.5{\times} 10^{18}$ eV based on $215,030$ events. New results are presented: at about $1.3{\times} 10^{19}$ eV, spectral index changes from $2.51 \pm 0.03 \textrm{ (stat.)} 0.05 (sys.)}$ to $3.05 (stat.)}\pm 0.10\textrm{ (sys.)}$, evolving $5.1\pm0.3\textrm{ 0.1\textrm{ beyond $5{\times} while no significant dependence features declination is seen in accessible range. These can be reproduced models with energy-dependent mass...
The Global Cosmic-ray Observatory (GCOS) is a proposed large-scale observatory for studying ultra-high-energy cosmic particles, including rays (UHECRs), photons, and neutrinos. Its primary goal to characterise the properties of highest-energy particles in Nature with unprecedented accuracy, identify their elusive sources. With an aperture at least ten-fold larger than existing observatories, this next-generation facility should start operating after 2030, when present-day detectors will...
Abstract JEM-EUSO is an international program for the development of space-based Ultra-High Energy Cosmic Ray observatories. The consists a series missions which are either under or in data analysis phase. All instruments based on wide-field-of-view telescope, operates near-UV range, designed to detect fluorescence light emitted by extensive air showers atmosphere. We describe simulation software ESAF framework and explain physical assumptions used. present here implementation JEM-EUSO,...
Abstract The complexity of modern cosmic ray observatories and the rich data sets they capture often require a sophisticated software framework to support simulation physical processes, detector response, as well reconstruction analysis real simulated data. Here we present EUSO-Offline framework. code base was originally developed by Pierre Auger Collaboration, portions it have been adopted other collaborations suit their needs. We extended this fulfill requirements Ultra-High Energy Cosmic...
The Cherenkov Telescope Array (CTA) is the next generation very high-energy gamma-ray observatory, with at least 10 times higher sensitivity than current instruments. CTA will comprise several tens of Imaging Atmospheric Telescopes (IACTs) operated in array-mode and divided into three size classes: large, medium small telescopes. total reflective surface could be up to 10,000 m<sup>2</sup> requiring unprecedented technological efforts. properties reflector directly influence telescope...
We present a discovery and observation of an extraordinarily bright prompt optical emission the GRB 060117 obtained by wide-field camera atop robotic telescope FRAM Pierre Auger Observatory from 2 to 10 minutes after GRB. found rapid average temporal flux decay alpha = -1.7 +- 0.1 peak brightness R 10.1 mag. Later observations other instruments set strong limit on radio transient fluxes, unveiling unexpectedly further decay. interpretation featuring relatively steep electron-distribution...
Many atmospheric and climatic criteria have to be taken into account for the selection of a suitable site next generation imaging air-shower Cherenkov telescopes, "Cherenkov Telescope Array" CTA. Such data are not available with sufficient precision, thus comparison proposed sites final decision based on comprehensive characterization is impossible. Identical cross-calibrated instruments been developed which allow precise between sites, cross-validation existing data, ground-validation...
The SST-1M is one of three prototype small-sized telescope designs proposed for the Cherenkov Telescope Array, and built by a consortium Polish Swiss institutions. will operate with DigiCam - an innovative, compact camera fully digital read-out trigger electronics. A high level integration be achieved massively deploying state-of-the-art multi-gigabit transmission channels, beginning from ADC flash converters, through internal data signals over backplanes cables, to camera's server link....
A FRAM (F/(Ph)otometric Robotic Atmospheric Monitor) telescope is a system of robotic mount, large-format CCD camera and fast telephoto lens that can be used for atmospheric monitoring at any site when information about the transparency required with high spatial or temporal resolution where continuous use laser-based methods this purpose would interfere other observations. The original has been operated Pierre Auger Observatory in Argentina more than decade, while three FRAMs are foreseen...
The Fluorescence detector Array of Single-pixel Telescopes is a proposed low-cost, large-area, next-generation experiment for the detection ultrahigh-energy cosmic rays via atmospheric fluorescence technique. design involves deployment several hundred large field-of-view telescopes on regular grid thousand square kilometers in ground area. This paper describes optical prototype telescope, as well its mechanical support structure.
Atmospheric monitoring is an integral part of the design Cherenkov Telescope Array (CTA), as atmospheric conditions affect observations by Imaging Telescopes (IACT) in multiple ways. The variable optical properties atmosphere are a major contribution to systematic uncertainty determination energy and flux gamma photons. Both development air-shower production light depend on molecular profile atmosphere. Additionally, rapidly changing aerosol profile, affecting transmission light, needs be...
The All Sky Camera (ASC) for CTA Site characterization is an automated optical instrument providing observation of the night sky conditions above future Cherenkov Telescope Array observatory. It provides basic condition analysis like cloud coverage, position, nightsky background in visible light wave range and raw photometry. result will serve further Monte Carlo design studies calculations. ASC additional auxiliary instruments (e.g. Ceilometer) provide input data smart scheduler during...
Contributions of the Fluorescence detector Array Single-pixel Telescopes (FAST) to 35th International Cosmic Ray Conference, 12-20 July 2017, Busan, Korea
The SST-1M project, run by a Consortium of institutes from Czech Republic, Poland and Switzerland, has been proposed as solution for implementing the small-size telescope array southern site Cherenkov Telescope Array. technology is pathfinder efficient production cost-effective imaging air telescopes. We report on main system features recent upgrades, performances validation operation campaign carried out in 2018.