Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Inês Cristina Corveira
Data de Publicação: 2015
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/30494
Resumo: Dissertação de Mestrado em Engenharia Física apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
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spelling Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixersDissertação de Mestrado em Engenharia Física apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.Nowadays many studies in astrophysics focus on the detection of far-infrared and submillimeter radiation. The most sensitive detectors for these wavelengths are superconducting detectors that have to be cooled to temperatures of order 100 mK. Large scale imaging or spectroscopy require large arrays of detectors (e.g. Transition Edge Sensors) containing hundreds or thousands of elements. In the last decade the size of the array increased to several 100 pixels, however, a jump to an array containing thousands of pixels requires a fundamental redesign of this existing technology. A serious limitation in the size of current cryogenic TES detector arrays is the large wire count from the room temperature electronics to the detectors at cryogenic temperatures. This gives rise to a lot of engineering problems such as electromagnetic interferences and thermal issues, especially for space instrumentation where the cooling power at low temperatures is very limited. In this thesis we study the feasibility of a cryogenic , low power, frequency multiplexed read-out scheme for a large number of Transition Edge Sensor (TES) detectors. This is done with help of Superconducting-Isolator-Superconducting (SIS) devices operating at GHz frequencies and working as frequency up- and down- converters and as RF-to- DC converters together with a Superconducting Quantum Interference Device (SQUID) for simultaneous local read-out. Future implementations of this design would allow the read-out and control of thousands of pixels with one single coaxial cable instead of thousand separate wires. For demonstration of the SIS-based RF-to-DC conversion and down-conversion, three di erent Printed Circuit Boards with commercial discrete components and a superconducting multiplexing frequency division scheme with Niobium microstrip lines were simulated, produced and tested. The results were very satisfying. The SIS devices have shown an excellent performance when acting as RF-to-DC converter at 2.5 GHz and the initial results of our bias system for control of a feedback coil of a SQUID were better than we could have expected, although improvements in the noise measurements could easily be done in future iterations. Furthermore the performance of the SIS as a GHz to MHz mixer was shown and nally a multiplexing system with a superconducting Nb microstrip line lter bank working around 4-6 GHz showed a performance close to simulations and demonstrated a next step in possible miniaturisation of the superconducting multiplexing electronics. These results give a proof of principle and indicate that with some improvements in the following iterations we can get a whole independent working scheme that could possibly be included in future astrophysical projects.2015-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://hdl.handle.net/10316/30494http://hdl.handle.net/10316/30494TID:201535963engRodrigues, Inês Cristina Corveira / Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixersRodrigues, Inês Cristina Corveirainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-01-27T12:23:49Zoai:estudogeral.uc.pt:10316/30494Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:00:23.836219Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
title Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
spellingShingle Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
Rodrigues, Inês Cristina Corveira
title_short Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
title_full Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
title_fullStr Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
title_full_unstemmed Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
title_sort Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
author Rodrigues, Inês Cristina Corveira
author_facet Rodrigues, Inês Cristina Corveira
author_role author
dc.contributor.author.fl_str_mv Rodrigues, Inês Cristina Corveira
description Dissertação de Mestrado em Engenharia Física apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/30494
http://hdl.handle.net/10316/30494
TID:201535963
url http://hdl.handle.net/10316/30494
identifier_str_mv TID:201535963
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Rodrigues, Inês Cristina Corveira / Feasibility study of a frequency division multiplexing read-out system with superconducting tunnel junctions as rectifiers and frequency mixers
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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