Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment

Abstract Passive radiation shielding is a mandatory element in the design of an integrated solution to mitigate the effects of radiation during long deep space voyages for human exploration. Understanding and exploiting the characteristics of materials suitable for radiation shielding in space fligh...

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Autores principales:	Livio Narici, Marco Casolino, Luca Di Fino, Marianna Larosa, Piergiorgio Picozza, Alessandro Rizzo, Veronica Zaconte
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c97efbb4a0944d399673d2932c678b5a
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spelling	oai:doaj.org-article:c97efbb4a0944d399673d2932c678b5a2021-12-02T11:41:21ZPerformances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment10.1038/s41598-017-01707-22045-2322https://doaj.org/article/c97efbb4a0944d399673d2932c678b5a2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01707-2https://doaj.org/toc/2045-2322Abstract Passive radiation shielding is a mandatory element in the design of an integrated solution to mitigate the effects of radiation during long deep space voyages for human exploration. Understanding and exploiting the characteristics of materials suitable for radiation shielding in space flights is, therefore, of primary importance. We present here the results of the first space-test on Kevlar and Polyethylene radiation shielding capabilities including direct measurements of the background baseline (no shield). Measurements are performed on-board of the International Space Station (Columbus modulus) during the ALTEA-shield ESA sponsored program. For the first time the shielding capability of such materials has been tested in a radiation environment similar to the deep-space one, thanks to the feature of the ALTEA system, which allows to select only high latitude orbital tracts of the International Space Station. Polyethylene is widely used for radiation shielding in space and therefore it is an excellent benchmark material to be used in comparative investigations. In this work we show that Kevlar has radiation shielding performances comparable to the Polyethylene ones, reaching a dose rate reduction of 32 ± 2% and a dose equivalent rate reduction of 55 ± 4% (for a shield of 10 g/cm2).Livio NariciMarco CasolinoLuca Di FinoMarianna LarosaPiergiorgio PicozzaAlessandro RizzoVeronica ZaconteNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Livio Narici Marco Casolino Luca Di Fino Marianna Larosa Piergiorgio Picozza Alessandro Rizzo Veronica Zaconte Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment
description	Abstract Passive radiation shielding is a mandatory element in the design of an integrated solution to mitigate the effects of radiation during long deep space voyages for human exploration. Understanding and exploiting the characteristics of materials suitable for radiation shielding in space flights is, therefore, of primary importance. We present here the results of the first space-test on Kevlar and Polyethylene radiation shielding capabilities including direct measurements of the background baseline (no shield). Measurements are performed on-board of the International Space Station (Columbus modulus) during the ALTEA-shield ESA sponsored program. For the first time the shielding capability of such materials has been tested in a radiation environment similar to the deep-space one, thanks to the feature of the ALTEA system, which allows to select only high latitude orbital tracts of the International Space Station. Polyethylene is widely used for radiation shielding in space and therefore it is an excellent benchmark material to be used in comparative investigations. In this work we show that Kevlar has radiation shielding performances comparable to the Polyethylene ones, reaching a dose rate reduction of 32 ± 2% and a dose equivalent rate reduction of 55 ± 4% (for a shield of 10 g/cm2).
format	article
author	Livio Narici Marco Casolino Luca Di Fino Marianna Larosa Piergiorgio Picozza Alessandro Rizzo Veronica Zaconte
author_facet	Livio Narici Marco Casolino Luca Di Fino Marianna Larosa Piergiorgio Picozza Alessandro Rizzo Veronica Zaconte
author_sort	Livio Narici
title	Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment
title_short	Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment
title_full	Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment
title_fullStr	Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment
title_full_unstemmed	Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment
title_sort	performances of kevlar and polyethylene as radiation shielding on-board the international space station in high latitude radiation environment
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c97efbb4a0944d399673d2932c678b5a
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Performances of Kevlar and Polyethylene as radiation shielding on-board the International Space Station in high latitude radiation environment

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