The X-ray Integral Field Unit at the end of the Athena reformulation phase

Philippe Peille, Didier Barret, et al.

Detalhes bibliográficos
Autores: Peille, Philippe, Barret, Didier, Cucchetti, Eduardo, Mas-Hesse, J. Miguel, Miniutti, Giovanni, Giustini, Margherita, Gómez, Alicia, Ceballos, María Teresa, Cobo, Beatriz
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2025
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/382753
Acesso em linha:http://hdl.handle.net/10261/382753
Access Level:Acceso aberto
Palavra-chave:X-ray integral field unit
Micro-calorimeters
Athena
X-rays
Instrumentation
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spelling The X-ray Integral Field Unit at the end of the Athena reformulation phasePeille, PhilippeBarret, DidierCucchetti, EduardoMas-Hesse, J. MiguelMiniutti, GiovanniGiustini, MargheritaGómez, AliciaCeballos, María TeresaCobo, BeatrizX-ray integral field unitMicro-calorimetersAthenaX-raysInstrumentationPhilippe Peille, Didier Barret, et al.arXiv:2502.10866v1The Athena mission entered a redefinition phase in July 2022, driven by the imperative to reduce the mission cost at completion for the European Space Agency below an acceptable target, while maintaining the flagship nature of its science return. This notably called for a complete redesign of the X-ray Integral Field Unit (X-IFU) cryogenic architecture towards a simpler active cooling chain. Passive cooling via successive radiative panels at spacecraft level is now used to provide a 50 K thermal environment to an X-IFU owned cryostat. 4.5 K cooling is achieved via a single remote active cryocooler unit, while a multi-stage Adiabatic Demagnetization Refrigerator ensures heat lift down to the 50 mK required by the detectors. Amidst these changes, the core concept of the readout chain remains robust, employing Transition Edge Sensor microcalorimeters and a SQUID-based Time-Division Multiplexing scheme. Noteworthy is the introduction of a slower pixel. This enables an increase in the multiplexing factor (from 34 to 48) without compromising the instrument energy resolution, hence keeping significant system margins to the new 4 eV resolution requirement. This allows reducing the number of channels by more than a factor two, and thus the resource demands on the system, while keeping a 4’ field of view (compared to 5’ before). In this article, we will give an overview of this new architecture, before detailing its anticipated performances. Finally, we will present the new X-IFU schedule, with its short term focus on demonstration activities towards a mission adoption in early 2027.The Italian contribution to XIFU is supported by ASI (Italian Space Agency) through Contract No. 2019-27-HH.0. The X-IFU consortium members working at Instituto de Física de Cantabria acknowledge Grant PID2021_122955OB-C41 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”.Peer reviewedSpringer NatureAgencia Estatal de Investigación (España)Agenzia Spaziale ItalianaMinisterio de Ciencia, Innovación y Universidades (España)European CommissionEuropean Space AgencyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/382753reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122955OB-C41https://doi.org/10.1007/s10686-025-09984-wSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3827532026-05-22T06:33:51Z
dc.title.none.fl_str_mv The X-ray Integral Field Unit at the end of the Athena reformulation phase
title The X-ray Integral Field Unit at the end of the Athena reformulation phase
spellingShingle The X-ray Integral Field Unit at the end of the Athena reformulation phase
Peille, Philippe
X-ray integral field unit
Micro-calorimeters
Athena
X-rays
Instrumentation
title_short The X-ray Integral Field Unit at the end of the Athena reformulation phase
title_full The X-ray Integral Field Unit at the end of the Athena reformulation phase
title_fullStr The X-ray Integral Field Unit at the end of the Athena reformulation phase
title_full_unstemmed The X-ray Integral Field Unit at the end of the Athena reformulation phase
title_sort The X-ray Integral Field Unit at the end of the Athena reformulation phase
dc.creator.none.fl_str_mv Peille, Philippe
Barret, Didier
Cucchetti, Eduardo
Mas-Hesse, J. Miguel
Miniutti, Giovanni
Giustini, Margherita
Gómez, Alicia
Ceballos, María Teresa
Cobo, Beatriz
author Peille, Philippe
author_facet Peille, Philippe
Barret, Didier
Cucchetti, Eduardo
Mas-Hesse, J. Miguel
Miniutti, Giovanni
Giustini, Margherita
Gómez, Alicia
Ceballos, María Teresa
Cobo, Beatriz
author_role author
author2 Barret, Didier
Cucchetti, Eduardo
Mas-Hesse, J. Miguel
Miniutti, Giovanni
Giustini, Margherita
Gómez, Alicia
Ceballos, María Teresa
Cobo, Beatriz
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Agenzia Spaziale Italiana
Ministerio de Ciencia, Innovación y Universidades (España)
European Commission
European Space Agency
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv X-ray integral field unit
Micro-calorimeters
Athena
X-rays
Instrumentation
topic X-ray integral field unit
Micro-calorimeters
Athena
X-rays
Instrumentation
description Philippe Peille, Didier Barret, et al.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/382753
url http://hdl.handle.net/10261/382753
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122955OB-C41
https://doi.org/10.1007/s10686-025-09984-w
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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