Search for $\alpha$ decay of naturally occurring Hf-nuclides using a Cs$_2$HfCl$_6$ scintillator
| Autor: | F. Cappella, S.S. Nagorny, V. Merlo, V. Caracciolo, Stefano Nisi, R. Cerulli, A. Incicchitti, R. Bernabei, P. Belli, Peng Wang, M. Laubenstein |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Nuclear and High Energy Physics
Physics - Instrumentation and Detectors HP-Ge γ spectrometer hafnium chemistry.chemical_element Scintillator 01 natural sciences High Energy Physics - Experiment Crystal 174Hf 176Hf 177Hf 178Hf 179Hf 180Hf crystal scintillator Cs2HfCl6 source = detector approach low background experiment 0103 physical sciences Nuclide 010306 general physics Nuclear Experiment Physics Isotope 010308 nuclear & particles physics Settore FIS/04 Radiochemistry Detector Hafnium chemistry Caesium National laboratory |
| Popis: | Residual radioactive contaminants of a caesium hafnium chloride (Cs$_2$HfCl$_6$) crystal scintillator have been measured in a low background setup at the Gran Sasso National Laboratory of the INFN, Italy. The total alpha activity of the detector is at the level of 7.8(3) mBq/kg. The results of direct studies of the $\alpha$ decay of naturally occurring Hf isotopes that have been performed using the "source=detector" approach are presented. In 2848 h of data taking, the $\alpha$ decay of $^{174}$Hf was observed with T$_{1/2} = (7.0\pm1.2)\times10^{16} $ y. Comment: Accepted for publication in Nuclear Physics, Section A |
| Databáze: | OpenAIRE |
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