elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Interaction Study of Energetic Protons and Electrons with the Vacuum Ultra Violet Source used in the Complex Irradiation Facility

Klein, Erik Marten and Seefeldt, Patric and Sznajder, Maciej and Renger, Thomas (2023) Interaction Study of Energetic Protons and Electrons with the Vacuum Ultra Violet Source used in the Complex Irradiation Facility. In: IOP Conference Series: Materials Science and Engineering. IOP Conference Series. A joint conference on Materials in the Space Environment (ISMSE 15 & ICPMSE 13 2022), 18. - 23. September 2022, Leidern, Niederlande. doi: 10.1088/1757-899X/1287/1/012013.

[img] PDF
3MB

Official URL: https://iopscience.iop.org/article/10.1088/1757-899X/1287/1/012013

Abstract

Context: One important factor to be considered for space missions is the radiation environment. It is composed of energetic particles, such as protons, electrons and ions, and electromagnetic radiation, photons ranging from Vacuum Ultra Violet (VUV) to Far Infrared (FIR). Each of these radiation sources have an unique energy spectrum that further depends on the location inside the solar system, e. g. Earth orbits or interplanetary space. For material qualification and material engineering, individual irradiation is considered and their effects are superimposed. However, effects occurring when two and more radiation types simultaneously are present have barely been investigated yet. Further complexity is added, when additional interactions take place due to laboratory hardware. Aims: This publication reports on the efforts made to analyse and measure the interaction of a VUV and corpuscular radiation sources. The aim is to quantify the deviations due to interactions and conclude consequences for the simultaneous operation of these radiation sources. Methods: In order to quantify the effects, the Complex Irradiation Facility (CIF), located at the DLR Bremen has been used. It connects proton and electron accelerators together with VUV and UV light sources to an ultra high vacuum chamber. The corpuscular and VUV radiation sources have been operated simultaneously. The reaction of the operation parameters, such as current measured with Faraday Cups (FC) has been tracked and post-processed. Results: It has been discovered, that protons considerably interact with the gas mixture used to operate the VUV source. This interaction decreases for higher beam intensities of the corpuscular irradiation. It was found, that this is likely due to protons ionizing gas atoms which are then measured by the FC as current. For electrons, this phenomena was not observed due to their smaller stopping power. The discovery restricts the acceleration factor of the CIF for proton together with VUV irradiation, but does not necessarily limit the range of application of the CIF depending on the requirements of the material and/or qualification test. Energy range of electrons stays unrestricted.

Item URL in elib:https://elib.dlr.de/197118/
Document Type:Conference or Workshop Item (Poster)
Title:Interaction Study of Energetic Protons and Electrons with the Vacuum Ultra Violet Source used in the Complex Irradiation Facility
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Klein, Erik MartenUNSPECIFIEDhttps://orcid.org/0000-0001-8539-8609UNSPECIFIED
Seefeldt, PatricUNSPECIFIEDhttps://orcid.org/0000-0002-2067-9458UNSPECIFIED
Sznajder, MaciejUNSPECIFIEDhttps://orcid.org/0000-0002-9917-0581UNSPECIFIED
Renger, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:September 2023
Journal or Publication Title:IOP Conference Series: Materials Science and Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.1088/1757-899X/1287/1/012013
Publisher:IOP Conference Series
Series Name:Materials Science and Engineering
Status:Published
Keywords:radiation testing, laboratory, synergetic testing, synergistic testing, proton, electron, radiation
Event Title:A joint conference on Materials in the Space Environment (ISMSE 15 & ICPMSE 13 2022)
Event Location:Leidern, Niederlande
Event Type:international Conference
Event Dates:18. - 23. September 2022
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 - Mechanical and Thermal Systems
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Mechanic and Thermal Systems
Deposited By: Klein, Erik Marten
Deposited On:08 Sep 2023 09:39
Last Modified:14 Sep 2023 15:00

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.