Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment
International audience This paper analyses atmospheric ionizing radiations induced by Galactic and Solar Cosmic Rays (GCR and SCR, respectively) thanks to continuous measurements of neutron spectrum operated in high-altitude stations. Analyses are reinforced using GCR and SCR models, and extensive a...
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ftccsdartic:oai:HAL:hal-01629269v1 2023-05-15T13:32:58+02:00 Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment Guillaume, Hubert Sébastien, Aubry ONERA - The French Aerospace Lab Toulouse ONERA 2017 https://hal.archives-ouvertes.fr/hal-01629269 en eng HAL CCSD JSciMed Central hal-01629269 https://hal.archives-ouvertes.fr/hal-01629269 JSM Environmental Science & Ecology https://hal.archives-ouvertes.fr/hal-01629269 JSM Environmental Science & Ecology, JSciMed Central, 2017 ATMOSPHERIC IONIZING RADIATION NEUTRON SPECTROMETRY AMBIENT DOSE EQUIVALENT ANTARCTICA [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] info:eu-repo/semantics/article Journal articles 2017 ftccsdartic 2021-11-07T03:35:09Z International audience This paper analyses atmospheric ionizing radiations induced by Galactic and Solar Cosmic Rays (GCR and SCR, respectively) thanks to continuous measurements of neutron spectrum operated in high-altitude stations. Analyses are reinforced using GCR and SCR models, and extensive air shower descriptions based on nuclear transport simulations. First analyses were focused on neutron fluxes as function of altitude. Secondly, atmospheric ionizing radiation impacts on biological doses during quiet period and extreme solar events are presented. On the basis of the relevant comparisons conducted for ambient dose equivalent during quiet solar activity, but also for the comic ray variations calculated and recorded on neutron monitor (NM) during Ground Level Enhancement (GLE) event. GLE 5 model was applied to London ↔ New-york flight dose calculations. All of these results show that dose values vary drastically, on the one hand with the route path (latitude, longitude altitude), on the other hand with the phasing of the solar event. Specific case of Antarctica is discussed because it combines both the high altitude and the very low magnetic field. Analyses show that ionizing radiation in Antarctica environment can be a problematic from the point of view of the human dose, which exerts classical recommendations established for public. This highlights the importance of monitoring atmospheric ionizing radiation, more particularly extreme solar events, then to develop semi-empirical and particle transport method for reliable calculation of dose levels. Article in Journal/Newspaper Antarc* Antarctica Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
ATMOSPHERIC IONIZING RADIATION NEUTRON SPECTROMETRY AMBIENT DOSE EQUIVALENT ANTARCTICA [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] |
spellingShingle |
ATMOSPHERIC IONIZING RADIATION NEUTRON SPECTROMETRY AMBIENT DOSE EQUIVALENT ANTARCTICA [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] Guillaume, Hubert Sébastien, Aubry Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment |
topic_facet |
ATMOSPHERIC IONIZING RADIATION NEUTRON SPECTROMETRY AMBIENT DOSE EQUIVALENT ANTARCTICA [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph] |
description |
International audience This paper analyses atmospheric ionizing radiations induced by Galactic and Solar Cosmic Rays (GCR and SCR, respectively) thanks to continuous measurements of neutron spectrum operated in high-altitude stations. Analyses are reinforced using GCR and SCR models, and extensive air shower descriptions based on nuclear transport simulations. First analyses were focused on neutron fluxes as function of altitude. Secondly, atmospheric ionizing radiation impacts on biological doses during quiet period and extreme solar events are presented. On the basis of the relevant comparisons conducted for ambient dose equivalent during quiet solar activity, but also for the comic ray variations calculated and recorded on neutron monitor (NM) during Ground Level Enhancement (GLE) event. GLE 5 model was applied to London ↔ New-york flight dose calculations. All of these results show that dose values vary drastically, on the one hand with the route path (latitude, longitude altitude), on the other hand with the phasing of the solar event. Specific case of Antarctica is discussed because it combines both the high altitude and the very low magnetic field. Analyses show that ionizing radiation in Antarctica environment can be a problematic from the point of view of the human dose, which exerts classical recommendations established for public. This highlights the importance of monitoring atmospheric ionizing radiation, more particularly extreme solar events, then to develop semi-empirical and particle transport method for reliable calculation of dose levels. |
author2 |
ONERA - The French Aerospace Lab Toulouse ONERA |
format |
Article in Journal/Newspaper |
author |
Guillaume, Hubert Sébastien, Aubry |
author_facet |
Guillaume, Hubert Sébastien, Aubry |
author_sort |
Guillaume, Hubert |
title |
Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment |
title_short |
Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment |
title_full |
Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment |
title_fullStr |
Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment |
title_full_unstemmed |
Analysis of Solar and Galactic Cosmic Rays Induced Atmospheric Ionizing Radiation: Impacts for Typical Transatlantic Flights and Antarctica Environment |
title_sort |
analysis of solar and galactic cosmic rays induced atmospheric ionizing radiation: impacts for typical transatlantic flights and antarctica environment |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.archives-ouvertes.fr/hal-01629269 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
JSM Environmental Science & Ecology https://hal.archives-ouvertes.fr/hal-01629269 JSM Environmental Science & Ecology, JSciMed Central, 2017 |
op_relation |
hal-01629269 https://hal.archives-ouvertes.fr/hal-01629269 |
_version_ |
1766037276906749952 |