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Magnetic Microcalorimeters for Primary Activity Standardization Within the EMPIR Project PrimA-LTD

Müller, Michael 1; Rodrigues, Matias; Beyer, Jörn; Loidl, Martin; Kempf, Sebastian 1,2
1 Institut für Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technologie (KIT)
2 Institut für Prozessdatenverarbeitung und Elektronik (IPE), Karlsruher Institut für Technologie (KIT)

Abstract:

The precision of existing decay data of radionuclides for activity determination is often a limitation for actual applications in science, society and industry. For this reason, the EMPIR project PrimA-LTD aims to introduce an advanced primary activity standardization technique that is based on magnetic microcalorimeters (MMCs) and that will offer very low energy threshold of few eV and a decay scheme-independent detection efficiency close to 100 %. As a proof of concept, we developed two MMC-based detector types in order to standardize an 𝛼-decaying, a 𝛽-decaying and an electron capture decaying isotope. One detector type aims to introduce a reusable detector setup, while the other aims to provide highly accurate decay spectra by high-resolution measurements with high statistics. We present the designs, fabrication status and first characterization measurements of both detectors types and outline next steps.


Verlagsausgabe §
DOI: 10.5445/IR/1000168981
Veröffentlicht am 01.03.2024
Originalveröffentlichung
DOI: 10.1007/s10909-024-03048-7
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikro- und Nanoelektronische Systeme (IMS)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2024
Sprache Englisch
Identifikator ISSN: 0022-2291, 1573-7357
KITopen-ID: 1000168981
Erschienen in Journal of Low Temperature Physics
Verlag Springer
Band 214
Heft 3-4
Seiten 263–271
Vorab online veröffentlicht am 08.02.2024
Schlagwörter Radionuclide metrology, Primary activity standardization, Magnetic microcalorimeters, Cryogenic single-particle detection
Nachgewiesen in Dimensions
Web of Science
Scopus
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