TY  - JOUR
AU  - G. Hubert
PY  - 2017//
TI  - Ground Albedo Neutron Impacts to Seasonal Variations of Cosmic-Ray-Induced Neutron in Medium Geomagnetic Latitude and Antarctica: Impacts on Soft Error Rate
KW  - albedo Antarctica ATMORAD Atmospheric modeling atmospheric shower modeling chemical rock composition Concordia cosmic ray apparatus cosmic ray neutrons cosmic ray showers Cosmic-ray induced neutrons cosmic-ray-induced neutron density epithermal domain evaporation domain evaporation neutron contribution GEANT4 GEANT4 simulations geochemistry ground albedo neutron ground albedo neutron impacts high-altitude stations high-sensitive technologies hydrogen content medium geomagnetic latitude modeling methodology neutron measurements neutron spectrum Neutrons nuclear electronics Pic-du-Midi Protons radiation hardening (electronics) rocks seasonal variations Single Event Rate Snow snow pack soft error rate soil Soil soil characteristics terrestrial radiation field water content
N2  - This paper investigates the impact of ground albedo neutrons in the terrestrial radiation field and their seasonal variations. A modeling methodology is proposed, it is based on ATMORAD (atmospheric shower modeling) and GEANT4 simulations taking into account the soil characteristics and hydrogen content. This method was validated thanks to neutron measurements performed in two high altitude stations located in medium geomagnetic latitude and Antarctica (Pic-du-Midi and Concordia, respectively). Thus, the chemical rock composition, the density, the water content and the snow pack impacts to neutron spectrum were investigated. Simulated and measured spectra were compared. Analyses show that variations are dominant in the thermal domain (i.e. En <;0.5 eV) and lesser degree in epithermal and evaporation domains (i.e. 0.5 eV <; En <;0.1 MeV and 0.1 MeV <; En <;20 MeV, respectively). The last part investigates the impact induced by the evaporation neutron contribution to Single Event Rate (more impacted by the ground albedo neutron). Results show that evaporation neutrons contribution to the total SER should be assessed for high-sensitive technologies.
SN  - 0018-9499
SN  - 0018-9499
UR  - http://dx.doi.org/10.1109/TNS.2016.2614540
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=6721), last updated on Wed, 10 Jul 2024 22:21:53 +0200
ID  - G.Hubert2017
ER  -