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Atom interferometry in space: Thermal management and magnetic shielding

Milke, Alexander and Kubelka-Lange, André and Gürlebeck, Norman and Reviers, Benny and Herrmann, Sven and Schuldt, Thilo and Braxmaier, Claus (2014) Atom interferometry in space: Thermal management and magnetic shielding. Review of Scientific Instruments, 85 (8). American Institute of Physics (AIP). DOI: 10.1063/1.4890560 ISSN 0034-6748

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Official URL: http://dx.doi.org/10.1063/1.4890560

Abstract

Atom interferometry is an exciting tool to probe fundamental physics. It is considered especially apt to test the universality of free fall by using two different sorts of atoms. The increasing sensitivity required for this kind of experiment sets severe requirements on its environments, instrument control, and systematic effects. This can partially be mitigated by going to space as was proposed, for example, in the Spacetime Explorer and Quantum Equivalence Principle Space Test (STE-QUEST) mission. However, the requirements on the instrument are still very challenging. For example, the specifications of the STE-QUEST mission imply that the Feshbach coils of the atom interferometer are allowed to change their radius only by about 260 nm or 2.6 × 10−4 % due to thermal expansion although they consume an average power of 22W. Also Earth’s magnetic field has to be suppressed by a factor of 105. We show in this article that with the right design such thermal and magnetic requirements can indeed be met and that these are not an impediment for the exciting physics possible with atom interferometers in space. © 2014 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4890560]

Item URL in elib:https://elib.dlr.de/94552/
Document Type:Article
Title:Atom interferometry in space: Thermal management and magnetic shielding
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Milke, AlexanderZARM, University of Bremen, GermanyUNSPECIFIED
Kubelka-Lange, AndréUNSPECIFIEDUNSPECIFIED
Gürlebeck, NormanZARM, University of Bremen, GermanyUNSPECIFIED
Reviers, BennyUNSPECIFIEDUNSPECIFIED
Herrmann, SvenZARM, University of BremenUNSPECIFIED
Schuldt, ThiloDLR-RY, BremenUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:Review of Scientific Instruments
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:85
DOI :10.1063/1.4890560
Publisher:American Institute of Physics (AIP)
ISSN:0034-6748
Status:Published
Keywords:Atom interferometry, thermal management, magnetic shielding
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben GRACE Follow-On
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hüls, Simone
Deposited On:13 Jan 2015 12:42
Last Modified:06 Sep 2019 15:29

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