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Zkušenosti s měřením reflexních vrstev u zrcadel používaných pro projekt Pierre Auger
Pech, Miroslav ; Hrabovský, Miroslav ; Schovánek, Petr ; Křepelka, Jaromír ; Palatka, Miroslav ; Nožka, Libor ; Mandát, Dušan ; Rössler, T. ; Řídký, Jan ; Boháčová, Martina
The Pierre Auger Observatory is designed for study of the universe's high energy particles, which evolve in the high layers of the atmosphere, where an elementary particle strikes with energy above 10.sup.19./sup. eV (1.6 J!). However, there is no scientific consensus about cosmic ray origin. The Auger Observatory is projected to gather the data needed to solve that puzzle. One of the detection technique is to observe these showers by fluorescent detectors, which are able to record the cascade development where the secondary particle causes atmospheric nitrogen to fluoresce.
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Pravděpodobnostní model popisující inaktivaci buněk ionizujícími částicemi
Kundrát, Pavel
Numerical analysis of experimental data concerning cell inactivaton by protons is presented, showing feasibility of the general probabilistic model of cell inactivation proposed by Judas and Lokajíček (2001), which enables one to respect even the detailed sructure of cell survival curves. Problems of corresponding numerical calculation are discused in details.
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