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 α decay of naturally occurring Hf isotopes that have been performed using the “source=detector” approach are presented. In 2848 h of data taking, the α decay of 174 Hf was observed with T =1/2(7.0±1.2)×1016 y.
Caracciolo, V., Nagorny, S.s., Belli, P., Bernabei, R., Cappella, F., Cerulli, R., et al. (2020). Search for α decay of naturally occurring Hf-nuclides using a Cs2HfCl6 scintillator. NUCLEAR PHYSICS. A, 1002, 121941 [10.1016/j.nuclphysa.2020.121941].
Search for α decay of naturally occurring Hf-nuclides using a Cs2HfCl6 scintillator
Caracciolo V.
;Bernabei R.;Merlo V.;
2020-01-01
Abstract
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 α decay of naturally occurring Hf isotopes that have been performed using the “source=detector” approach are presented. In 2848 h of data taking, the α decay of 174 Hf was observed with T =1/2(7.0±1.2)×1016 y.| File | Dimensione | Formato | |
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