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Geant4 simulations of nuclear processes in a magneto-active plasma during solar flares

Grant number: 18/08180-1
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): July 01, 2018
Effective date (End): June 30, 2019
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Solar System Astronomy
Principal Investigator:Carlos Guillermo Giménez de Castro
Grantee:Jordi Tuneu Serra
Supervisor: Alexander Lachlan Mackinnon
Host Institution: Escola de Engenharia (EE). Universidade Presbiteriana Mackenzie (UPM). Instituto Presbiteriano Mackenzie. São Paulo , SP, Brazil
Research place: University of Glasgow, Scotland  
Associated to the scholarship:16/23428-4 - Monte Carlo simulations of nuclear processes during solar flares in magneto-active plasmas, BP.DR


The emissions in gamma-rays and in the sub-THz range of frequencies offer a unique opportunity to study the nuclear processes that occur in solar flares. The analysis of the emission spectra observed in these ranges of frequencies require complex simulations which, however, are not yet able to describe the extreme conditions of the solar flare environments. The proposal of this Research Internships Abroad (RIA) project is to carry out a detailed modelling to describe the transport of primary ions accelerated to high energies ~MeV to ~GeV during solar flares and the production and transport of secondary particles, resulting from nuclear interactions between the accelerated ions and the nuclei of the ambient solar atmosphere in the presence of a magnetic field, as well as the consequent emission of gamma-rays and synchrotron radiation in the micro-wave and sub-THz range of frequencies. To this end, we will develop a framework to implement Monte Carlo simulations of nuclear processes in a magneto-active plasma during solar flares using the Geant4 toolkit. The main challenges of the project will be the specification of the physical processes relevant to the simulations, the selection of the proper GEANT4 physics models and the development of a new module for GEANT4 which allows to include the effects of realistic magnetic fields within a guiding center approximation. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
TUNEU, J.; GIMENEZ DE CASTRO, G.; SZPIGEL, S.; MACKINNON, A.. Modelling magnetised medium particle transport in the guiding centre limit with GEANT4. Astronomy & Astrophysics, v. 654, . (16/23428-4, 18/08180-1, 13/24155-3)

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