Open AccessEnsuring the Radiation Resistance of the Onboard Command Radio Link Equipment during Long Periods of Active Existence of Spacecraft (Part 1)
Author(s) -
N. N. Bulgakov,
В. Ф. Зинченко
Publication year - 2022
Publication title -
raketno-kosmičeskoe priborostroenie i informacionnye sistemy
Language(s) - English
Resource type - Journals
eISSN - 2587-9057
pISSN - 2409-0239
DOI - 10.30894/issn2409-0239.2022.9.1.85.96
Subject(s) - spacecraft , aerospace engineering , aeronautics , link (geometry) , resistance (ecology) , radiation , radiation resistance , engineering , computer science , environmental science , physics , computer network , optics , biology , ecology
The experience of JSC “Russian Space Systems” in the development of on-board equipment for command radio links of spacecraft for various purposes with a given level of radiation resistance under conditions of long-term exposure to ionizing radiation of outer space for the period from 2003 to 2021 is summarized. The main stages of work to ensure the resistance of onboard equipment to integral dose effects and the effects of single events are considered. Methodological and software resources have been developed that allow correct prediction of local dose loads of ionizing radiation from outer space in the on-board equipment of command radio links, taking into account the effect of “dose amplification” of secondary bremsstrahlung. The methodological issues of ensuring the terms of the active existence of the onboard equipment are considered, using the cold redundancy of critical devices and components. The use of cold redundancy makes it possible to increase the duration of active existence relative to resistance to integral dose effects by about 1.5 times. The effectiveness of the developed methodological and software resources for confirming the radiation resistance of the onboard equipment of command radio links is proved by successful operation of about 100 spacecraft for various purposes in the 2005–2021 period.