Galactic Cosmic Rays
Mostrando 1-6 de 6 artigos, teses e dissertações.
-
1. Investigating Space Radiation Environment Effects on Communication of Razaksat-1
ABSTRACT: This study attempted to identify whether space radiation sources could have affected the communication on RazakSAT-1 that was orbiting in a Low Earth Orbit-Near Equatorial (LEO-NEqO). Data on galactic cosmic rays (GCR), trapped protons, trapped electrons, and solar energetic particles (SEPs) obtained from Space Environment Information System (SPENV
J. Aerosp. Technol. Manag.. Publicado em: 03/05/2018
-
2. On the deflection of ultra-high energy cosmic rays in the galactic magnetic field / Da deflexão de raios cósmicos ultra-energéticos no campo magnético galáctico
Campos magnéticos cósmicos são ubíquos e estão presentes em todas as escalas, desde os planetas até os superaglomerados de galáxias. Sabe-se que o campo magnético da Via Láctea possui uma componente regular, que tem uma estrutura espiral, e uma componente aleatória. Muitas questões acerca do magnetismo galáctico ainda permanecem sem respostas, e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/2012
-
3. Evaluation of the fluence to dose conversion coefficients for high energy neutrons using a voxel phantom coupled with the GEANT4 code
Crews working on present-day jet aircraft are a large occupationally exposed group with a relatively high average effective dose from galactic cosmic radiation. Crews of future high-speed commercial flying at higher altitudes would be even more exposed. To help reduce the significant uncertainties in calculations of such exposures, the male adult voxels phan
Brazilian Journal of Physics. Publicado em: 2005-09
-
4. Variabilidade da absorção de ruído cósmico via riômetro e modelagem numérica dos processos associados / Variability of cosmic noise absorption by riometer and modeling of the associated processes.
Neste trabalho são apresentadas três abordagens diferentes do comportamento da absorção ionosférica do ruído cósmico das regiões subauroral (Estação Antártica Comandante Ferraz - 62,56°S; 58,39°W) e da Anomalia Magnética do Atlântico Sul (AMAS) (Cachoeira Paulista-SP, 22,50°S, 45,00°W ; Gaspar-SC, 26,90°S; 48,89°W). Os estudos foram feitos
Publicado em: 2004
-
5. THE ORIGIN OF NONTHERMAL GALACTIC RADIO EMISSION AND OF PRIMARY COSMIC RAYS
-
6. Mass extinctions and supernova explosions.
In a recent contribution to this journal Ellis and Schramm [Ellis, J. & Schramm, D. N. (1995) Proc. Natl. Acad. Sci. USA 92, 235-238] claim that supernova explosions can cause massive biological extinctions as a result of strongly enhanced stratospheric NOx (NO + NO2) production by accompanying galactic cosmic rays. They suggested that these NOx productions