Radiation Shielding Evaluation of Spacecraft Walls against Heavy Ions Using Microdosimetry
Publication Name
IEEE Transactions on Nuclear Science
Abstract
Despite the low contribution of heavy ions to the total fluence in the space radiation environment, their radiobiological effect on the human body is extremely high. In this article, we investigated the radiation field which resulted from the interaction of galactic cosmic rays (GCRs), specifically some heavy ions and energies, typically encountered in space with a realistic multilayer sample of the International Space Station (ISS) Columbus module's shielding wall. The quality factor, Q, and the normalized dose equivalent, H, derived from microdosimetric measurements for C, Ne, and Si ions behind different spacecraft wall configurations and materials are presented in this article. Particularly, carbon fiber, polyoxymethylene, and perspex with same areal density compared to currently used aluminum were investigated.
Open Access Status
This publication is not available as open access
Volume
68
Issue
5
Article Number
9235502
First Page
897
Last Page
905
Funding Number
4000112670/14/NL/HK
Funding Sponsor
European Space Agency