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.
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Official URL: http://dx.doi.org/10.1016/j.nima.2014.02.030
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.
|Title:||A Small Active Dosimeter for Applications in Space|
|Journal or Publication Title:||Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 61-69|
|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|
|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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