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Surface Modification of Space Exposed Materials Induced by Low Energetic Proton Irradiation

Keil, Denise and Seiz, Frederic and Bartels, Nils and Riede, Wolfgang and Sznajder, Maciej and Renger, Thomas and Spröwitz, Tom (2021) Surface Modification of Space Exposed Materials Induced by Low Energetic Proton Irradiation. Journal of the Astronautical Sciences. American Astronautical Society. doi: 10.1007/s40295-021-00277-w. ISSN 0021-9142.

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Official URL: http://dx.doi.org/10.1007/s40295-021-00277-w

Abstract

The aim of this paper is to verify if commonly occurring space debris materials change their reflectivity and morphology after being exposed to low energy protons. Therefore, a set of six different materials frequently used in spacecraft engineering was irradiated with low energy (100 keV) protons to simulate the aging of their surfaces due to space radiation in low Earth orbit (LEO). A microscopic and spectroscopic analysis of the irradiated samples reveals that the tested materials containing organic polymers (Polytetrafluoroethylene (PTFE) and carbon fiber reinforced plastic (CFRP)) show changes in surface morphology. Metallic surfaces did not show surface modifications but we found changes in the reflectivity of coated polyimide sheets, like used in Multi Layer Insulation blankets, during and after proton irradiation. Our results show that space materials exhibit significant changes after irradiation equivalent to the dose accumulated after 100 years in LEO. This knowledge is highly relevant for the interpretation of optical data related to the observation of space debris as well as to studies about laser-matter interaction for laser-based debris removal.

Item URL in elib:https://elib.dlr.de/144665/
Document Type:Article
Title:Surface Modification of Space Exposed Materials Induced by Low Energetic Proton Irradiation
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Keil, DeniseDenise.Keil (at) dlr.dehttps://orcid.org/0000-0001-7016-2791
Seiz, FredericUNSPECIFIEDUNSPECIFIED
Bartels, NilsUNSPECIFIEDUNSPECIFIED
Riede, WolfgangUNSPECIFIEDUNSPECIFIED
Sznajder, MaciejMaciej.Sznajder (at) dlr.dehttps://orcid.org/0000-0002-9917-0581
Renger, ThomasUNSPECIFIEDUNSPECIFIED
Spröwitz, TomTom.Sproewitz (at) dlr.dehttps://orcid.org/0000-0001-5369-6919
Date:17 August 2021
Journal or Publication Title:Journal of the Astronautical Sciences
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1007/s40295-021-00277-w
Publisher:American Astronautical Society
ISSN:0021-9142
Status:Published
Keywords:space aging, space debris, characterization, complex irradiation facility, protons
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Project Use of Lasers for the Detection of Space Debris
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Institute of Space Systems > Mechanic and Thermal Systems
Deposited By: Sznajder, Dr.-Ing. Maciej
Deposited On:19 Oct 2021 12:14
Last Modified:24 May 2022 23:47

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