Search for naturally occurring seaborgium with radiopure 116 CdWO 4 crystal scintillators

2022/06/20 by P. Belli, R. Bernabei, F. Cappella +11 · 1 citation
Physics and Astronomy · Chemistry · #Nuclear physics research studies #Neutrino Physics Research #Radiation Detection and Scintillator Technologies #Scintillator #Physics #Tungsten #Nuclear physics #Double beta decay #Accelerator mass spectrometry #Crystal (programming language) #Atomic physics #Mass spectrometry #Radiochemistry #Detector #Materials science #Chemistry #Neutrino #Optics

paper · doi:10.1088/1402-4896/ac7a6d

openalex publication_date 2022/06/20 · openalex created_date 2022/06/22 · openalex updated_date 2026/07/22

Abstract

Abstract A detector containing two radiopure 116 CdWO 4 crystal scintillators with total mass of 1.2 kg was operated during 35324 h at the Gran Sasso Underground Laboratory (INFN, Italy) with the main aim to investigate double beta decay of 116 Cd. As a by-product of the experiment, a new upper limit on atomic abundance of hypothetical naturally occurring long-lived seaborgium (eka-tungsten, Z = 106) in tungsten was set at 5.1 10 −15 atom(Sg)/atom(W) with 90% C.L. (assuming the Sg half-life of 10 9 yr) by the analysis of the alpha decay events. This limit is better than those obtained with a ZnWO 4 scintillator and in other types of experiments which used the accelerator mass spectrometry or searched for spontaneous fission of superheavy elements.

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Cited by

• Island of stability [wikipedia]

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