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Suitability of Magnetic Microbolometers based on Paramagnetic Temperature Sensors for CMB Polarization Measurements

Geria, Juan Manuel 1; Hampel, Matias Rolf; Kempf, Sebastian 1,2; Bonaparte, Juan Jose; Ferreyro, Luciano Pablo 1; Redondo, Manuel Eliías Garcia; Almela, Daniel Alejandro; Salum, Juan Manuel 1; Müller, Nahuel; Bonilla-Neira, Jesus David; Fuster, Alan Ezequiel; Platino, Manuel; Etchegoyen, Alberto
1 Institut für Prozessdatenverarbeitung und Elektronik (IPE), Karlsruher Institut für Technologie (KIT)
2 Institut für Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

High resolution maps of polarization anisotropies of the Cosmic Microwave Background (CMB) are in high demand, since the discovery of primordial B-Modes in the polarization patterns would confirm the inflationary phase of the Universe that would have taken place before the last scattering of the CMB at the recombination epoch. Transition Edge Sensors (TES) and Microwave Kinetic Inductance Detectors (MKID) are the predominant detector technologies of cryogenic detector array based CMB instruments that search for primordial B-Modes. In this paper we propose another type of cryogenic detector to be used for CMB survey: A magnetic microbolometer (MMB) that is based on a paramagnetic temperature sensor. It is an adaption of state-of-the-art metallic magnetic calorimeters (MMCs) that are meanwhile a key technology for high resolution α, β, γ and X-ray spectroscopy as well as the study of neutrino mass. The effort to adapt MMCs for CMB surveys is triggered by their lack of Johnson noise associated with the detector readout, the possibility of straightforward calibration and higher dynamic range given it possesses a broad and smooth responsivity dependence with temperature and the absence of Joule dissipation which simplifies the thermal design. ... mehr


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Originalveröffentlichung
DOI: 10.48550/arXiv.2209.06088
Zugehörige Institution(en) am KIT Institut für Mikro- und Nanoelektronische Systeme (IMS)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Forschungsbericht/Preprint
Publikationsjahr 2023
Sprache Englisch
Identifikator ISSN: 1000156194
KITopen-ID: 1000167722
HGF-Programm 54.12.01 (POF IV, LK 01) Detection and Measurement
Vorab online veröffentlicht am 16.02.2023
Schlagwörter Instrumentation and Detectors (physics.ins-det), Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Nachgewiesen in Dimensions
arXiv
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