13-18 May 2018
Casino Conference Centre
Europe/Prague timezone

Analysis of environmental radionuclides at ultra-low levels: Limitations for underground experiments on rare nuclear processes

16 May 2018, 10:30
30m
Marble Hall (Casino Conference Centre)

Marble Hall

Casino Conference Centre

Reitenbergerova 4/95, Mariánské Lázně, Czech Republic
Invited Nuclear Analytical Methods NAM 3

Speaker

Prof. Pavel P. Povinec (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia)

Description

Accelerator mass spectrometry, inductively coupled plasma mass spectrometry, neutron activation analysis and underground gamma-ray spectrometry have been investigated for ultra-sensitive analysis of long-lived radionuclides ($^{238}U$ and $^{232}Th$) in isotope sources and in construction materials designed for underground studies of rare nuclear processes and decays. Specific features of each method are compared with the aim to optimize analytical conditions for different types of samples. Detection limits below 1 nBq/g are feasible, depending on the analytical method and sample matrix. Analytical results obtained with various methods for different samples are presented, and limitations of presently available technologies and plans for future developments are discussed.

Primary author

Prof. Pavel P. Povinec (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia)

Co-authors

Alexander S. Barabash (NRC Kurchatov Institute, Institute of Theoretical and Experimental Physics, Moscow, Russia) Ljudmila Benedik (Josef Stefan Institute, Ljubljana, Slovenia) Robert Breier (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia) Victor B. Brudanin (Joint Institute of Nuclear Research, Dubna, Russia) Miroslav Ješkovský (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia) Jakub Kaizer (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia) Oleg Kochetov (Joint Institute of Nuclear Research, Dubna, Russia) Ivan Kontuľ (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia) Jan Kamenik (Nuclear Physics Institute of CAS, Řež near Prague, Czech Republic) Jan Kučera (Nuclear Physics Institute of CAS, Řež near Prague, Czech Republic) Matthias Laubenstein (INFN - Laboratori Nazionali del Gran Sasso, Assergi, Italy) Sang-Han Lee (KRISS, Daejeon, Republic of Korea) Pia Loaiza (LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France) Stefano Nisi (INFN - Laboratori Nazionali del Gran Sasso, Assergi, Italy) Veronika Palušová (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia) Fabrice Piquemal (Laboratoire Souterrain de Modane, Modane, France; Centre Etudes Nucléaires de Bordeaux Gradignan, CNRS/ IN2P3, Gradignan, France) Ruben Saakyan (University College London, UK) Jaroslav Staníček (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia) Jakub Zeman (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia)

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