Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2021, Vol. 18, No. 6, pp. 127-137
Results of radiation tests of a new generation high-precision star sensor and its components
R.V. Bessonov
1 , A.A. Kobeleva
1 , S.A. Prokhorova
1 , P.S. Smetanin
1 , A.A. Forsh
1 , Ya.D. Elyashev
1 1 Space Research Institute RAS, Moscow, Russia
Accepted: 23.11.2021
DOI: 10.21046/2070-7401-2021-18-6-127-137
Star sensors are optoelectronic devices intended for use in outer space. One of the factors affecting equipment in space is ionizing radiation from outer space (IROS). IROS refers to electrons, protons and heavy charged particles (HCP) of the natural radiation belts of the Earth, solar and galactic cosmic rays. IROS can lead to degradation of the equipment characteristics, in particular to radiation coloration of the lens glasses, as well as to malfunctions or failures. In order to ensure the radiation resistance of a new generation high-precision stellar sensor, research and analysis of the resistance of the electronic component base (ECB), optical elements (lens) and thermoelectric cooling module were carried out. The sensitive ECB has been tested for resistance to the effects of simulating installations of gamma radiation, proton flux and HCP. On an initiative basis, the secondary power supply module and functional model were tested for resistance to gamma radiation. Based on the studies and tests carried out, a number of measures have been developed to counter the single radiation effects of failures and failures. The study showed that the durability requirements were met with a margin.
Keywords: star tracker, radiation resistance, absorbed dose, single radiation effects
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