The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation

The X-ray Integral Field Unit (X-IFU) instrument on the future ESA mission Athena X-ray Observatory is a cryogenic micro-calorimeter array of Transition Edge Sensor (TES) detectors designed to provide spatially-resolved high-resolution spectroscopy. The onboard reconstruction software provides energ...

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Autores: Ceballos Merino, María Teresa|||0000-0001-6074-3621, Cardiel, Nicolás, Cobo Martín, Beatriz, Smith, Stephen J., Witthoeft, Michael C., Peille, Philippe, Durkin, Malcolm S.
Formato: artículo
Fecha de publicación:2024
País:España
Recursos:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/38800
Acesso em linha:https://hdl.handle.net/10902/38800
Access Level:acceso abierto
Palavra-chave:Athena: the advanced telescope for high energy astrophysics
X-IFU: the X-ray integral field unit
Space instrumentation
X-rays
Observatory
Astrophysics
Instrumentation and methods for astrophysics
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spelling The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncationCeballos Merino, María Teresa|||0000-0001-6074-3621Cardiel, NicolásCobo Martín, BeatrizSmith, Stephen J.Witthoeft, Michael C.Peille, PhilippeDurkin, Malcolm S.Athena: the advanced telescope for high energy astrophysicsX-IFU: the X-ray integral field unitSpace instrumentationX-raysObservatoryAstrophysicsInstrumentation and methods for astrophysicsThe X-ray Integral Field Unit (X-IFU) instrument on the future ESA mission Athena X-ray Observatory is a cryogenic micro-calorimeter array of Transition Edge Sensor (TES) detectors designed to provide spatially-resolved high-resolution spectroscopy. The onboard reconstruction software provides energy, spatial location and arrival time of incoming X-ray photons hitting the detector. A new processing algorithm based on a truncation of the classical optimal filter and called 0-padding, has been recently proposed aiming to reduce the computational cost without compromising energy resolution. Initial tests with simple synthetic data displayed promising results. This study explores the slightly better performance of the 0-padding filter and assess its final application to real data. The goal is to examine the larger sensitivity to instrumental conditions that was previously observed during the analysis of the simulations. This 0-padding technique is thoroughly tested using more realistic simulations and real data acquired from NASA and NIST laboratories employing X-IFU-like TES detectors. Different fitting methods are applied to the data, and a comparative analysis is performed to assess the energy resolution values obtained from these fittings. The 0-padding filter achieves energy resolutions as good as those obtained with standard filters, even with those of larger lengths, across different line complexes and instrumental conditions. This method proves to be useful for energy reconstruction of X-ray photons detected by the TES detectors provided proper corrections for baseline drift and jitter effects are applied. The finding is highly promising especially for onboard processing, offering efficiency in computational resources and facilitating the analysis of sources with higher count rates at high resolution.M.T. Ceballos, N. Cardiel and B.Cobo acknowledge grant PID2021-122955OB-C41 funded byMCIN/AEI/ 10.13039/501100011033 and by “ERDF A way of making Europe”.Springer NatureUniversidad de Cantabria20242024-03-21journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/38800Experimental Astronomy, 2024, 57(2), 14reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/388002026-06-02T12:39:31Z
dc.title.none.fl_str_mv The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
title The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
spellingShingle The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
Ceballos Merino, María Teresa|||0000-0001-6074-3621
Athena: the advanced telescope for high energy astrophysics
X-IFU: the X-ray integral field unit
Space instrumentation
X-rays
Observatory
Astrophysics
Instrumentation and methods for astrophysics
title_short The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
title_full The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
title_fullStr The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
title_full_unstemmed The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
title_sort The first cut is the cheapest: optimizing Athena/X-IFU-like TES detectors resolution by filter truncation
dc.creator.none.fl_str_mv Ceballos Merino, María Teresa|||0000-0001-6074-3621
Cardiel, Nicolás
Cobo Martín, Beatriz
Smith, Stephen J.
Witthoeft, Michael C.
Peille, Philippe
Durkin, Malcolm S.
author Ceballos Merino, María Teresa|||0000-0001-6074-3621
author_facet Ceballos Merino, María Teresa|||0000-0001-6074-3621
Cardiel, Nicolás
Cobo Martín, Beatriz
Smith, Stephen J.
Witthoeft, Michael C.
Peille, Philippe
Durkin, Malcolm S.
author_role author
author2 Cardiel, Nicolás
Cobo Martín, Beatriz
Smith, Stephen J.
Witthoeft, Michael C.
Peille, Philippe
Durkin, Malcolm S.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Athena: the advanced telescope for high energy astrophysics
X-IFU: the X-ray integral field unit
Space instrumentation
X-rays
Observatory
Astrophysics
Instrumentation and methods for astrophysics
topic Athena: the advanced telescope for high energy astrophysics
X-IFU: the X-ray integral field unit
Space instrumentation
X-rays
Observatory
Astrophysics
Instrumentation and methods for astrophysics
description The X-ray Integral Field Unit (X-IFU) instrument on the future ESA mission Athena X-ray Observatory is a cryogenic micro-calorimeter array of Transition Edge Sensor (TES) detectors designed to provide spatially-resolved high-resolution spectroscopy. The onboard reconstruction software provides energy, spatial location and arrival time of incoming X-ray photons hitting the detector. A new processing algorithm based on a truncation of the classical optimal filter and called 0-padding, has been recently proposed aiming to reduce the computational cost without compromising energy resolution. Initial tests with simple synthetic data displayed promising results. This study explores the slightly better performance of the 0-padding filter and assess its final application to real data. The goal is to examine the larger sensitivity to instrumental conditions that was previously observed during the analysis of the simulations. This 0-padding technique is thoroughly tested using more realistic simulations and real data acquired from NASA and NIST laboratories employing X-IFU-like TES detectors. Different fitting methods are applied to the data, and a comparative analysis is performed to assess the energy resolution values obtained from these fittings. The 0-padding filter achieves energy resolutions as good as those obtained with standard filters, even with those of larger lengths, across different line complexes and instrumental conditions. This method proves to be useful for energy reconstruction of X-ray photons detected by the TES detectors provided proper corrections for baseline drift and jitter effects are applied. The finding is highly promising especially for onboard processing, offering efficiency in computational resources and facilitating the analysis of sources with higher count rates at high resolution.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-03-21
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/38800
url https://hdl.handle.net/10902/38800
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv Experimental Astronomy, 2024, 57(2), 14
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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