Ultra-sensitive radioanalytical technologies for underground physics experiments

P.P. Povinec , L. Benedik , R. Breier , M. Ješkovský , J. Kaizer , J. Kameník , O. Kochetov , J. Kučera , P. Loaiza (1) , S. Nisi , V. Palušová , F. Piquemal (2, 3)

1 LAL - Laboratoire de l'Accélérateur Linéaire
2 LSM - UMR 6417 - Laboratoire Souterrain de Modane
3 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

Assessment of radioactive contamination of construction materials used in deep underground experiments has been carried out using ultra-sensitive analytical methods such as radiometrics, inductively coupled plasma mass spectrometry (ICPMS), accelerator mass spectrometry (AMS), and neutron activation analysis. The lowest detection limits, < 1 nBq g$^{−1}$, has been obtained with ICPMS and AMS techniques.

Mots clés: $^{238}$U and$^{232}$Th decay series; AMS; ICPMS; HPGe gamma-spectrometry; Underground experiments; Radiopurity measurements

Domaines: Instrumentations et Détecteurs [physics.ins-det]

P.P. Povinec, L. Benedik, R. Breier, M. Ješkovský, J. Kaizer, et al.. Ultra-sensitive radioanalytical technologies for underground physics experiments. International Conference on Methods and Applications of Radioanalytical Chemistry, Apr 2018, Hawaii, United States. pp.677-684, ⟨10.1007/s10967-018-6105-9⟩. ⟨hal-01897174⟩