[en] Third-generation gravitational wave detectors will use large mirrors isolated from seismic motion at low frequency, and also cooled down to cryogenic temperatures. To fulfil these two specifications, the E-TEST project explores the possibility of using a purely non-contact radiative cooling strategy. Based on cooling predictions, the paper includes a detailed design of the cryostat and the assembly procedure. A test campaign demonstrated that the proposed strategy succeeded in bringing the temperature of a [Figure presented] dummy mirror down to [Figure presented] in 19 days. These encouraging results are paving the way toward a fully radiative approach for cooling the mirrors of the future Einstein Telescope.
Research Center/Unit :
CSL - Centre Spatial de Liège - ULiège A&M - Aérospatiale et Mécanique - ULiège
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Jacques, Lionel ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Zeoli, Morgane ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Centre for Cosmology, Particle Physics and Phenomenology (CP3), UCLouvain, Louvain-la-Neuve, Belgium
Amorosi, Anthony ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Université Libre de Bruxelles, Precision and Mechatronics Laboratory, Brussels, Belgium
Collette, Christophe ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Active aerospace structures and advanced mechanical systems ; Université Libre de Bruxelles, Precision and Mechatronics Laboratory, Brussels, Belgium
Einstein Telescope Euregio Meuse-Rhine Site & Technology
Funders :
ERC - European Research Council F.R.S.-FNRS - Fonds de la Recherche Scientifique EC - European Commission ERDF - European Regional Development Fund Interreg Europe
Funding text :
The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Christophe Collette reports financial support was provided by Interreg V-A Euregio Meuse-Rhine Programme. This work comes within the scope of the E-TEST project, which is carried out within the framework of the Interreg V-A Euregio Meuse-Rhine Programme, with \u20AC7,5 million from the European Regional Development Fund (ERDF). By investing EU funds in Interreg projects, the European Union is investing directly in economic development, innovation, territorial development, social inclusion, and education in the Euregio Meuse-Rhine region. For a thorough review, the authors would like to thank European Union for this support and investment. The authors gratefully acknowledge the European Research Council, Consolidator grant SILENT (grant agreement number 866259), and the Fonds National de la Recherche Scientifique (FNRS), projet de recherche STELLAR (T.0022.22), for funding this research. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.This work comes within the scope of the E-TEST project, which is carried out within the framework of the Interreg V-A Euregio Meuse-Rhine Programme, with \u20AC7,5 million from the European Regional Development Fund (ERDF). By investing EU funds in Interreg projects, the European Union is investing directly in economic development, innovation, territorial development, social inclusion, and education in the Euregio Meuse-Rhine region. For a thorough review, the authors would like to thank European Union for this support and investment. The authors gratefully acknowledge the European Research Council, Consolidator grant SILENT (grant agreement number 866259), and the Fonds National de la Recherche Scientifique (FNRS), projet de recherche STELLAR (T.0022.22), for funding this research. The document is referenced in the ET database under the code ET-0708A-24.This work comes within the scope of the E-TEST project, which is carried out within the framework of the Interreg V-A Euregio Meuse-Rhine Programme, with \u20AC million from the European Regional Development Fund (ERDF). By investing EU funds in Interreg projects, the European Union is investing directly in economic development, innovation, territorial development, social inclusion, and education in the Euregio Meuse-Rhine region. For a thorough review, the authors would like to thank European Union for this support and investment. The authors gratefully acknowledge the European Research Council, Consolidator grant SILENT (grant agreement number 866259), and the Fonds National de la Recherche Scientifique (FNRS), projet de recherche STELLAR (T.0022.22), for funding this research. The document is referenced in the ET database under the code ET-0708A-24 .
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