Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions
Radiation exposure of aircrew is more and more recognized as an occupational hazard. The ionizing environment at standard commercial aircraft flight altitudes consists mainly of secondary particles, of which the neutrons give a major contribution to the dose equivalent. Accurate estimations of neutr...
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ftdlr:oai:elib.dlr.de:60625 2024-04-21T08:08:21+00:00 Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions Sihver, L. Matthiä, Daniel Koi, T. Mancusi, D. 2008 https://elib.dlr.de/60625/ unknown Deutsche Physikalische Gesellschaft & Institute of Physics Sihver, L. und Matthiä, Daniel und Koi, T. und Mancusi, D. (2008) Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions. New Journal of Physics (The open-access journal for physics), 10 (online) (105019 (online)), Seite 19. Deutsche Physikalische Gesellschaft & Institute of Physics. doi:10.1088/1367-2630/10/10/105019 <https://doi.org/10.1088/1367-2630/10/10/105019>. Strahlenbiologie Zeitschriftenbeitrag PeerReviewed 2008 ftdlr 2024-03-25T15:00:30Z Radiation exposure of aircrew is more and more recognized as an occupational hazard. The ionizing environment at standard commercial aircraft flight altitudes consists mainly of secondary particles, of which the neutrons give a major contribution to the dose equivalent. Accurate estimations of neutron spectra in the atmosphere are therefore essential for correct calculations of aircrew doses. Energetic solar particle events (SPE) could also lead to significantly increased dose rates, especially at routes close to the North Pole, e.g. for flights between Europe and USA. It is also well known that the radiation environment encountered by personnel aboard low Earth orbit (LEO) spacecraft or aboard a spacecraft traveling outside the Earth's protective magnetosphere is much harsher compared with that within the atmosphere since the personnel are exposed to radiation from both galactic cosmic rays (GCR) and SPE. The relative contribution to the dose from GCR when traveling outside the Earth's magnetosphere, e.g. to the Moon or Mars, is even greater, and reliable and accurate particle and heavy ion transport codes are essential to calculate the radiation risks for both aircrew and personnel on spacecraft. We have therefore performed calculations of neutron distributions in the atmosphere, total dose equivalents, and quality factors at different depths in a water sphere in an imaginary spacecraft during solar minimum in a geosynchronous orbit. The calculations were performed with the GEANT4 Monte Carlo (MC) code using both the binary cascade (BIC) model, which is part of the standard GEANT4 package, and the JQMD model, which is used in the particle and heavy ion transport code PHITS GEANT4. Article in Journal/Newspaper North Pole German Aerospace Center: elib - DLR electronic library New Journal of Physics 10 10 105019 |
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German Aerospace Center: elib - DLR electronic library |
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Strahlenbiologie |
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Strahlenbiologie Sihver, L. Matthiä, Daniel Koi, T. Mancusi, D. Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions |
topic_facet |
Strahlenbiologie |
description |
Radiation exposure of aircrew is more and more recognized as an occupational hazard. The ionizing environment at standard commercial aircraft flight altitudes consists mainly of secondary particles, of which the neutrons give a major contribution to the dose equivalent. Accurate estimations of neutron spectra in the atmosphere are therefore essential for correct calculations of aircrew doses. Energetic solar particle events (SPE) could also lead to significantly increased dose rates, especially at routes close to the North Pole, e.g. for flights between Europe and USA. It is also well known that the radiation environment encountered by personnel aboard low Earth orbit (LEO) spacecraft or aboard a spacecraft traveling outside the Earth's protective magnetosphere is much harsher compared with that within the atmosphere since the personnel are exposed to radiation from both galactic cosmic rays (GCR) and SPE. The relative contribution to the dose from GCR when traveling outside the Earth's magnetosphere, e.g. to the Moon or Mars, is even greater, and reliable and accurate particle and heavy ion transport codes are essential to calculate the radiation risks for both aircrew and personnel on spacecraft. We have therefore performed calculations of neutron distributions in the atmosphere, total dose equivalents, and quality factors at different depths in a water sphere in an imaginary spacecraft during solar minimum in a geosynchronous orbit. The calculations were performed with the GEANT4 Monte Carlo (MC) code using both the binary cascade (BIC) model, which is part of the standard GEANT4 package, and the JQMD model, which is used in the particle and heavy ion transport code PHITS GEANT4. |
format |
Article in Journal/Newspaper |
author |
Sihver, L. Matthiä, Daniel Koi, T. Mancusi, D. |
author_facet |
Sihver, L. Matthiä, Daniel Koi, T. Mancusi, D. |
author_sort |
Sihver, L. |
title |
Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions |
title_short |
Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions |
title_full |
Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions |
title_fullStr |
Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions |
title_full_unstemmed |
Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions |
title_sort |
dose calculations at high altitudes and in deep space with geant4 using bic and jqmd models for nucleus–nucleus reactions |
publisher |
Deutsche Physikalische Gesellschaft & Institute of Physics |
publishDate |
2008 |
url |
https://elib.dlr.de/60625/ |
genre |
North Pole |
genre_facet |
North Pole |
op_relation |
Sihver, L. und Matthiä, Daniel und Koi, T. und Mancusi, D. (2008) Dose calculations at high altitudes and in deep space with GEANT4 using BIC and JQMD models for nucleus–nucleus reactions. New Journal of Physics (The open-access journal for physics), 10 (online) (105019 (online)), Seite 19. Deutsche Physikalische Gesellschaft & Institute of Physics. doi:10.1088/1367-2630/10/10/105019 <https://doi.org/10.1088/1367-2630/10/10/105019>. |
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New Journal of Physics |
container_volume |
10 |
container_issue |
10 |
container_start_page |
105019 |
_version_ |
1796948629649358848 |