Improved Source/Absorber Preparation for Radionuclide Spectrometry Based on Low-Temperature Calorimetric Detectors

L. Bockhorn (1) , M. Paulsen (2) , J. Beyer (2) , K. Kossert (1) , Martin Loidl (3) , O. Nähle (1) , P. C.-O. Ranitzsch (1) , Matias Rodrigues (3)

1 PTB - Physikalisch-Technische Bundesanstalt [Braunschweig]
2 PTB - Physikalisch-Technische Bundesanstalt [Berlin]
3 LNHB (CEA, LIST) - Laboratoire National Henri Becquerel (CEA, LIST)

High-resolution beta spectrometry based on low-temperature calorimetric detectors requires high-quality source/absorber combinations in order to avoid spectrum artifacts and to achieve optimal detection efficiency. In this work, preparation techniques and quality control methods to fabricate reliable source/absorber assemblies with the radionuclide under investigation embedded into them are discussed.

Keywords: metrology; radioactivity; ionizing radiation; beta-rays; spectrometry; beta spectrometry; High-resolution beta spectrometry; calorimeter; detector; source preparation; absorber; spectrum analysis; spectrum artifact; detection efficiency; preparation techniques; quality control; reference source

Domains: Nuclear Experiment [nucl-ex]; Radiochemistry

L. Bockhorn, M. Paulsen, J. Beyer, K. Kossert, Martin Loidl, et al.. Improved Source/Absorber Preparation for Radionuclide Spectrometry Based on Low-Temperature Calorimetric Detectors. Journal of Low Temperature Physics, 2020, 199 (1-2), pp.298-305. ⟨10.1007/s10909-019-02274-8⟩. ⟨cea-04567182⟩