Results 21 to 30 of about 1,265,099 (265)

Dependence of cosmic ray component in background of atmosphere surface from solar magnetic activity

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
Using Geant4 toolkit the changes of the flux density and of the dose rates of the secondary cosmic radiation at the heights up to 50 m from the land surface (at a depth of atmosphere about 1030 g/cm²) and depending on solar magnetic activity were ...
Zelinskiy, A.S., Yakovlev, G.A.
doaj   +1 more source

Estimation of Cosmic-Ray-Induced Atmospheric Ionization and Radiation at Commercial Aviation Flight Altitudes

open access: yesApplied Sciences, 2022
The main source of the ionization of the Earth’s atmosphere is the cosmic radiation that depends on solar activity as well as geomagnetic activity. Galactic cosmic rays constitute a permanent radiation background and contribute significantly to the ...
Panagiota Makrantoni   +10 more
doaj   +1 more source

The verify of the terrestrial measuring method of the cosmic ray response and calibration coefficient for the radiometer

open access: yesHe jishu, 2021
BackgroundMeasurement of radiation environment γ dose rate is greatly influenced by the high energy charged particles of cosmic rays which varies in different inspection sites.
ZHANG Hua   +4 more
doaj   +1 more source

Living With Cosmic Radiation

open access: yesPerspectives of Earth and Space Scientists, 2022
The last two decades of cosmic ray research have been eventful, to say the least. The Voyager spacecraft explored the outer‐most regions of the heliosphere and eventually left our local astrosphere to explore the galaxy.
R. Du Toit Strauss
doaj   +1 more source

Cosmic Background Radiation [PDF]

open access: yesInternational Journal of Theoretical Physics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Valluri, Sree Ram, Sidharth, B G
openaire   +2 more sources

Considering light-matter interactions in Friedmann equations based on the conformal FLRW metric

open access: yesJournal of Advanced Research, 2023
Introduction: Recent observations indicate that the Universe is not transparent but partially opaque due to absorption of light by ambient cosmic dust. This implies that the current cosmological model valid for the transparent universe must be modified ...
Václav Vavryčuk
doaj   +1 more source

The cosmic microwave background bispectrum from the non-linear evolution of the cosmological perturbations [PDF]

open access: yes, 2010
International audienceThis article presents the first computation of the complete bispectrum of the cosmic microwave background temperature anisotropies arising from the evolution of all cosmic fluids up to second order, including neutrinos ...
Bernardeau, F.   +8 more
core   +3 more sources

Cosmic necklaces in string theory and field theory [PDF]

open access: yes, 2010
PhDIn this thesis we investigate astrophysical phenomena which arise in models with compact extra dimensions, focussing on the cosmological consequences of strings which wrap cycles in the internal space. Embedding our strings in the Klebanov-Strassler
Lake, Matthew James
core   +4 more sources

THE ESTIMATION OF COSMIC RAY COMPONENT CONTRIBUTION INTO THE TOTAL β- AND γ-BACKGROUND OF ATMOSPHERE [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2017
Simulation results of characteristics of atmospheric γ- and β-radiation fields, which are produced by primary cosmic rays when overcoming an Earth’s atmospheres, with using Geant4 are presented.
A. S. Zelinskii, V. S. Yakovleva
doaj   +1 more source

Origin of cosmic radiation [PDF]

open access: yesAIP Conference Proceedings, 2001
I give a brief overview of cosmic ray physics, highlighting some key questions and how they will be addressed by new experiments.
openaire   +2 more sources

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