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Study of radiation conditions onboard the International space station by means of the Liulin-5 dosimeter

Semkova, J., et al. (2013). "Study of radiation conditions onboard the International space station by means of the Liulin-5 dosimeter." Cosmic Research 51 2: 124-132

For estimating radiation risk in space flights it is necessary to determine radiation dose obtained by critical organs of a human body. For this purpose the experiments with human body models are carried out onboard spacecraft. These models represent phantoms equipped with passive and active radiation detectors which measure dose distributions at places of location of critical organs. The dosimetric Liulin-5 telescope is manufactured with using three silicon detectors for studying radiation conditions in the spherical tissue-equivalent phantom on the Russian segment of the International space station (ISS). The purpose of the experiment with Liulin-5 instrument is to study dynamics of the dose rate and particle flux in the phantom, as well as variations of radiation conditions on the ISS over long time intervals depending on a phase of the solar activity cycle, orbital parameters, and presence of solar energetic particles. The Liulin-5 dosimeter measures simultaneously the dose rate and fluxes of charged particles at three depths in the radial channel of the phantom, as well as the linear energy transfer. The paper presents the results of measurements of dose rate and particle fluxes caused by various radiation field components on the ISS during the period from June 2007 till December 2009.

Related URLs:
http://dx.doi.org/10.1134/S0010952512060068

ISSN: 0010-9525 1608-3075

DOI: 10.1134/S0010952512060068

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Tags: Dosemeter, Dosimeter, Human, International Space Station, ISS, Linear Energy Transfer, Particle Flux, Phantom, Radiation, Radiation Dosage, Space dosimetry, Space Flight, Space radiation, Spaceflight, Spherical tissue-equivalent phantom, Tissue-equivalent