Analysis of the angular distribution of cosmic-ray-induced particles in the atmosphere based on Monte Carlo simulations including the influence of the Earth's magnetic field

Pazianotto, M. T.; Cortés-Giraldo, M.A.; Federico, Claudio Antônio; Gonçales, Odair Lelis; Hubert, G.; Quesada, J. M.; Carlson, B. V.

doi:10.1016/j.astropartphys.2017.11.001

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…αaverage is the average angle of the angular range of the particles embedded in the source, j is the index of the binning in energy which ranges from 0 to Emax, and i is the index of the binning in angle, which ranges from 0° to 180°, in intervals of 5°. This equation converts the gPartAt results, given in the planar fluence [21] [23] into total fluence. The gPartAt platform generates the angular distribution of the cosmic-ray-induced particles at any altitude in the atmosphere and this information was considered to perform the simulations in the aircraft.…”

Section: A Source Fluencementioning

confidence: 99%

Simulation of Cosmic Radiation Transport Inside Aircraft for Safety Applications

Prado

Pazianotto

Molina

et al. 2020

IEEE Trans. Aerosp. Electron. Syst.

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During the flight, an aircraft is submitted to a radiation environment composed of cosmic-ray-induced particles (CRIP) of which neutrons are responsible for approximately 40% of the crew effective dose and are the main cause of Single Event Effects (SEE) in avionics systems at flight altitudes. A model of Learjet aircraft was developed on Monte Carlo simulation using the MCNPX code in order to detail the CRIP field inside the aircraft. The radiation source modeling was previously developed by a computational platform that simulates the energy and angular distributions of the CRIP along the atmosphere. In this work, we determined the variation of the neutron radiation field in several positions inside the aircraft at 11km and 18 km altitudes and for both equatorial and polar regions. The results suggest that the maximum variation of neutron fluence rate between different positions inside the aircraft shows a tendency of higher differences for a lower energy threshold (thermal and E > 1 MeV) in comparison with those differences for a higher energy threshold (E > 10 MeV). Moreover, the angular distribution results show relevant differences between positions inside aircraft, mainly for thermal neutrons close to the fuel. The general tendency is to enhance these discrepancies for devices with new technologies, due to their lower energy threshold for SEE occurrences.

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Section: A Source Fluencementioning

confidence: 99%

Simulation of Cosmic Radiation Transport Inside Aircraft for Safety Applications

Prado

Pazianotto

Molina

et al. 2020

IEEE Trans. Aerosp. Electron. Syst.

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“…There are several interesting simulation toolkits available for this purpose, including GEANT4 1 [11], FLUKA 2 [12], and CORSIKA 3 [13]. Numerous studies have been devoted to investigating the angular distribution based on these codes [14][15][16]. However, the computational cost often restricts the application of Monte Carlo methods for routine flux estimations.…”

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confidence: 99%

Probing the angular distribution of terrestrial cosmic-ray nuclei

Sedrati,

Attallah,

Bouchachi

2024

EPL

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Understanding how atmospheric cosmic rays are distributed on Earth is crucial for simulating cosmic ray setups and detectors for rare event detection. The accuracy and reliability of such simulations and experiments depend on obtaining this information. Thisstudy focuses on analyzing the impact of key parameters in the PARMA model on the angular distributions of terrestrial cosmic ray nuclei. These parameters include geomagnetic cutoff rigidity, atmospheric depth and solar activity. Moreover, angular distributions of various particles, including protons, electrons, neutrons, and muons, were systematically calculated over relevant rigidities, solar modulations, and altitudes. For this purpose, the latest version of the Excel-based Program for calculating Atmospheric Cosmic-ray Spectrum EXPACS (v.4.13), which relies on updated experimental data, was used. The results of the calculations showedclear trends in the angular distributions of all cosmic ray species as a function of the model parameters. These findings provide valuable insights into the dynamics of cosmic rays in our solar system. Moreover, they can contribute to developing more accurate models for predicting the distribution of cosmic rays on Earth’s surface.

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Optimization of shielding to reduce cosmic radiation damage to packaged semiconductors during air transport using Monte Carlo simulation

Lee

Kim

Jeong

et al. 2020

Nuclear Engineering and Technology

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Analysis of the angular distribution of cosmic-ray-induced particles in the atmosphere based on Monte Carlo simulations including the influence of the Earth's magnetic field

Cited by 5 publications

References 19 publications

Simulation of Cosmic Radiation Transport Inside Aircraft for Safety Applications

Simulation of Cosmic Radiation Transport Inside Aircraft for Safety Applications

Probing the angular distribution of terrestrial cosmic-ray nuclei

Optimization of shielding to reduce cosmic radiation damage to packaged semiconductors during air transport using Monte Carlo simulation

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