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Radiation measured for MATROSHKA-1 experiment with passive dosimeters

Zhou, D. and Semones, E. and O’Sullivan, D. and Zapp, N. and Weyland, M. and Reitz, G. and Berger, T. and Benton, E.R. (2010) Radiation measured for MATROSHKA-1 experiment with passive dosimeters. Acta Astronautica, 66 (1-2), pp. 301-308. Elsevier. DOI: 10.1016/j.actaastro.2009.06.014 .

Full text not available from this repository.

Abstract

The radiation field in low Earth orbit (LEO) and deep space is complicated. The radiation impact on astronauts depends strongly on the particles’ linear energy transfer (LET) and is dominated by high LET radiation. Radiation risk is a key concern for human space flight and can be estimated with radiation LET spectra measured for the different organs of an astronaut phantom. At present the best passive personal dosimeters used for astronauts are thermoluminescence dosimeters (TLDs) and optically stimulated luminescence dosimeters (OSLDs) for low LET and CR-39 plastic nuclear track detectors (PNTDs) for high LET. CR-39 PNTDs, TLDs and OSLDs were used for the MATROSHKA-1 experiment to measure radiation experienced by astronauts outside the international space station (ISS). LET spectra and radiation field quantities (differential and integral fluence, absorbed dose and dose equivalent) were measured for the different organs and skin locations of the MAROSHKA phantom using CR-39 PNTDs and TLDs. The spectra and results can be used to determine the radiation quantities for astronaut's extra vehicular activity (EVA) and for the further in-depth study of the radiation risk for astronauts. Sensitivity fading of CR-39 detectors was observed for the MATROSHKA experiment and a practical method was developed to correct it. This paper presents the radiation LET spectra measured with CR-39 PNTDs and the total radiation quantities combined from results measured with CR-39 PNTDs and TLDs.

Document Type:Article
Title:Radiation measured for MATROSHKA-1 experiment with passive dosimeters
Authors:
AuthorsInstitution or Email of Authors
Zhou, D. Johnson Space Center - NASA, 2101 Nasa Parkway, Houston, TX 77058, USA and Universities Space Research Association, 3600 Bay Area Boulevard, Houston, TX 77058, USA
Semones, E. Johnson Space Center - NASA, 2101 Nasa Parkway, Houston, TX 77058, USA
O’Sullivan, D. Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin 2, Ireland
Zapp, N. Johnson Space Center - NASA, 2101 Nasa Parkway, Houston, TX 77058, USA
Weyland, M. Johnson Space Center - NASA, 2101 Nasa Parkway, Houston, TX 77058, USA
Reitz, G. UNSPECIFIED
Berger, T. UNSPECIFIED
Benton, E.R. Eril Research Inc., 1110 Innovation Way, Suite 100, Stillwater, OK 74074, USA
Date:2010
Journal or Publication Title:Acta Astronautica
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:66
DOI:10.1016/j.actaastro.2009.06.014
Page Range:pp. 301-308
Publisher:Elsevier
Status:Published
Keywords:Space radiation, MATROSHKA-1, CR-39 detectors, LET spectrum
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Strahlenbiologie (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kerstin Kopp
Deposited On:15 Dec 2009 09:35
Last Modified:26 Mar 2013 13:14

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