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Národní úložiště šedé literatury Nalezeno 5 záznamů.  Hledání trvalo 0.00 vteřin. 
Parameters sensitive to the mass composition of cosmic rays and their application at the Pierre Auger Observatory
 Vícha, Jakub
The Pierre Auger Observatory studies extensive cosmic ray showers of energy above 1018 eV. The mass composition of the shower–inducing primary particles plays an important role in the search for an anisotropy of their arrival directions and in considerations about the possible mechanisms of their acceleration. Several air shower parameters carrying information about the mass of primary cosmic ray are introduced and their applications to data of the Pierre Auger Observatory are discussed.
Úplný záznam
Measurement of scattering properties of ultrathin glass mirrors
 Mandát, Dušan ; Pech, Miroslav ; Palatka, Miroslav ; Nožka, Libor ; Nováková, P. ; Hrabovský, M. ; Schovánek, Petr
Following text deals with results of light scattering measurement of glass mirrors using the optical instrument CASI owned by Joint Lab- oratory of Optics (JLO) of the Palacky University and the Institute of Physics of Academy of Science of the Czech Republic. JLO pro- duces the large-area ultrathin mirros which are used in fluorescence detectores (FD).
Úplný záznam
Near UV filter optical properties
 Palatka, Miroslav ; Mandát, Dušan ; Pech, Miroslav ; Nožka, Libor ; Nováková, P. ; Marek, M. ; Hrabovský, M. ; Schovánek, Petr
Following text notice results of measurement of optical properties of the M-UG6 filter used in fluorescence telescopes (FD). We use op- tical instruments owned by Joint Laboratory of Optics of the Palacky University and the Institute of Physics of Academy of Science of the Czech Republic.
Úplný záznam
Introduction to roughness ASR measurement method with mirror roughness measurement example
 Pech, Miroslav ; Hrabovský, M. ; Mandát, Dušan ; Marek, M. ; Palatka, Miroslav ; Schovánek, Petr
In this paper attention is concentrated on one of the main factor which affects image quality of the optical elements - a surface roughness. There are presented physical background and usage of the special measuring system. Thereinafter there is presented quantitative measurement method of the microscopic surface quality with example in measuring of the PAO mirror segments scattering parameters.
Úplný záznam
Numerical modelling of the glass shaping forms cooling
 Havelková, Martina ; Schovánek, Petr
The purpose of heat treatment of semi finished glass pieces in shaping forms is not only to fit their shape but also to reduce internal stresses. Thermal differences are unwanted and have to be eliminated in the cooling procedure of the glass pieces. Simulations of different types and sizes of shaping forms and complex model cooling were accomplished. The aim of these simulations was to optimise geometrical parameters, clamping conditions and material of the form, so that thermal differences at glass or glass – form interface are minimized during the cooling.
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