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A Small Active Dosimeter for Applications in Space

Ritter, Birgit and Maršálek, Karel and Berger, Thomas and Burmeister, Sönke and Reitz, Günther and Heber, Bernd (2014) A Small Active Dosimeter for Applications in Space. Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, 748, pp. 61-69. Elsevier. DOI: 10.1016/j.nima.2014.02.030. ISSN 0168-9002.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.nima.2014.02.030

Abstract

The radiation field in low Earth orbits (LEO) differs significantly from the radiation environment on Earth's surface. Exposures are by far higher and pose an additional health risk for astronauts. Continuous monitoring is therefore a necessary task in the frame of radiation protection measures. A small battery-driven active dosimeter telescope based on silicon detectors meeting the requirements for LEO applications has been developed. The instrument, the Mobile Dosimetric Telescope (MDT), is designed to measure the absorbed dose rate and the linear energy transfer (LET) spectra. From the latter the mean quality factor of the radiation field can be derived and hence an estimate of the dose equivalent as a measure of the exposure. The calibration of the device is done using radioactive isotopes and heavy ions. Fragmentation products of heavy ions are used to show the ability of the MDT to reliably detect energy depositions from high energetic nuclei. Radiation measurements inside aircraft during long distance flights, serving as field tests of the instrument, prove the good performance of the instrument.

Document Type:Article
Title:A Small Active Dosimeter for Applications in Space
Authors:
AuthorsInstitution or Email of Authors
Ritter, BirgitGerman Aerospace Center, Institute of Aerospace Medicine, Linder Höhe, 51147 Cologne, Germany and Christian-Albrechts-University Kiel, Institute of Experimental and Applied Physics, Leibnizstr. 11, 24118 Kiel, Germany; birgit.ritter@dlr.de
Maršálek, KarelGerman Aerospace Center, Institute of Aerospace Medicine, Linder Höhe, 51147 Cologne, Germany
Berger, ThomasGerman Aerospace Center, Institute of Aerospace Medicine, Linder Höhe, 51147 Cologne, Germany
Burmeister, SönkeChristian-Albrechts-University Kiel, Institute of Experimental and Applied Physics, Leibnizstr. 11, 24118 Kiel, Germany
Reitz, GüntherGerman Aerospace Center, Institute of Aerospace Medicine, Linder Höhe, 51147 Cologne, Germany
Heber, BerndChristian-Albrechts-University Kiel, Institute of Experimental and Applied Physics, Leibnizstr. 11, 24118 Kiel, Germany
Date:2014
Journal or Publication Title:Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:748
DOI:10.1016/j.nima.2014.02.030
Page Range:pp. 61-69
Publisher:Elsevier
ISSN:0168-9002
Status:Published
Keywords:Silicon telescope, Dosimetry, Space radiation environment
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kerstin Kopp
Deposited On:26 Feb 2014 13:54
Last Modified:18 Mar 2014 14:35

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