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Regensburg 2022 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 31: Superconducting Electronics and Cryogenics: Poster Session

TT 31.10: Poster

Thursday, September 8, 2022, 15:00–18:00, P1

PrimA-LTD: Towards new primary activity standardization methods based on low-temperature detectors — •Alexander Göggelmann1, Joern Beyer2, Christian Enss3,6, Sebastian Kempf4,6, Karsten Kossert1, Martin Loidl5, Michael Müller4, Ole Nähle1, Michael Paulsen2, Philipp Chung-On Ranitzsch1, Matias Rodrigues5, and Mathias Wegner4,61Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany — 2Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany — 3Kirchhoff-Institute for Physics, Heidelberg University, Germany — 4Institute of Micro- and Nanoelectronic Systems, Karlsruhe Institute of Technology, Karlsruhe, Germany — 5CEA, LIST, Laboratoire National Henri Bequerel, Saclay, France — 6Institute for Data Processing and Electronics, Karlsruhe Institute of Technology, Karlsruhe, Germany

Radionuclide metrology, and in particular, activity standardization, is based on well-established measurement techniques that have been used and improved for decades. The methods and the achievable uncertainty are, however, very dependent on the type of radiation that is emitted and the quality of the available decay data. A major part of the EMPIR project “PrimA-LTD” consists in developing new primary techniques and in particular the high-resolution spectrometry of 241Am, 129I and 55Fe using magnetic microcalorimeters (MMCs). The presentation will focus on the experimental details including the MMC detector setup, sample preparation and planned spectral measurements with more than 108 counts and energy thresholds below 50 eV.

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