Investigation and Comparison of Materials Using in Radiation Protection of Commercial Parts in LEO Satellite Mission using SPENVIS Software

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Bokaie Zahra; Daneshvar Hamideh; Feghhi Seyed Amir Hossein; Shokri Aliasghar

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Journal: Year:2024 | Volume:4 | Issue:1 Page(s): 105-118

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Information Journal Paper

Title

Investigation and Comparison of Materials Using in Radiation Protection of Commercial Parts in LEO Satellite Mission using SPENVIS Software

Author(s)

Bokaie Zahra | Daneshvar Hamideh | Feghhi Seyed Amir Hossein | Shokri Aliasghar | Issue Writer Certificate

Keywords

space radiation# COTS#shielding# total ionizing dose# non

ionizing dose

Abstract

How to Cite this article Radiation damages have destructive effects on the electronic components of satellites. Due to financial reasons and the presence of different restrictions, the utilization of commercial components ended up common in short-term and low-altitude missions. The most effective method of protection against radiation is the use of shields. The results of calculations obtained from PSTAR and ESTAR software show that in case heavier metals are utilized, the energy range of particles to stop increases. The result of SHIELDOSE, MULASSIS, PSTAR, and ESTAR software calculations is that the amount of thickness of different materials for the radiation tolerance of commercial parts does not differ much in terms of condensation thickness. Also, there is no need for complex protection and it can be used for usual protections. The maximum thickness required for the radiation tolerance of commercial parts is 0.5 mm from the combination of Aluminum and Tantalum. In order to achieve the best result considering the mass budget, it is better to use polyethylene material. From the results of the calculations to change the permutations of the aluminum and polyethylene shields, it can be concluded that it is better to have the first layer of polyethylene and the next layer of Aluminum.

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