Radiation measurements inside a human phantom aboard the International Space Station using Liulin-5 charged particle telescope |
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Authors: | J Semkova R Koleva St Maltchev N Kanchev V Benghin I Chernykh V Shurshakov V Petrov E Yarmanova N Bankov V Lyagushin M Goranova |
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Institution: | 1. Solar-Terrestrial Influences Laboratory, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Block 3, 1113 Sofia, Bulgaria;2. State Scientific Center of Russian Federation, Institute of Biomedical Problems, Russian Academy of Sciences, 76a, Khoroshevskoye Sh., 123007 Moscow, Russia;3. Space Research Institute, Bulgarian Academy of Sciences, 6 Moscovska Street, 1000 Sofia, Bulgaria;4. Korolev Rocket & Space Corporation Energia, 4a, Lenin St., Korolev, Moscow Region 141070, Russia;5. Technical University, 8 Kliment Ohridski St., 1000 Sofia, Bulgaria |
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Abstract: | Liulin-5 is a particle telescope developed for the investigation of the radiation environment within the Russian spherical tissue-equivalent phantom on the International Space Station (ISS). Liulin-5 experiment is conducted aboard the Russian segment of ISS since 28 June 2007 as an adherent part of the international project MATROSHKA-R. The main objective of Liulin-5 experiment is to study the depth-dose distribution of the different components of the orbital radiation field in a human phantom. Additional objectives are mapping of the radiation environment in the phantom and its variations with time and orbital parameters (such as solar cycle, solar flare events, inclination and altitude). Liulin-5 is an active instrument, capable to provide real-time radiation data for the particle flux and dose rates, energy deposition and LET spectra. Data are recorded automatically on memory cards, periodically transported to ground by returning vehicles. In this report we present some first results from data analysis including energy deposition spectra, absorbed dose, dose rate and flux distribution measured simultaneously at 3 different depths of phantom’s radial channel and linear energy transfer (LET) spectrum. Data discussed are for the period July 2007–April 2008. |
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Keywords: | Space radiation measurements Human phantom ISS Charged particle telescope |
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