6533b7dafe1ef96bd126e12a

RESEARCH PRODUCT

Measurement of the heaviest Beta-delayed 2-neutron emitter: 136Sb

I. DillmannAnnika VossHeikki PenttiläW. GelletlyW. GelletlyR. Caballero-folchR. Caballero-folchIlkka PohjalainenC. Domingo-pardoL. CaneteM. MartaDmitry GorelovG. CortesA. AlgoraJani HakalaTommi EronenA. Montaner-pizáIain MooreAnu KankainenJuha ÄYstöVeli KolhinenAri JokinenJ. AgramuntV. GuadillaB. RubioSami Rinta-antilaJ. L. TainC. R. NobsF. CalviñoP. Salvador-castiñeiraJukka KoponenE. MendozaS. E.a. OrrigoVasily SimutkinE. GaniogluA. RiegoJuuso Reinikainen

subject

FissionNeutron emissionQC1-999Astrophysics::High Energy Astrophysical PhenomenaNuclear TheoryNuclear physicsNeutronAstrophysics7. Clean energy01 natural sciencesNuclear physicsEmission0103 physical sciencesNeutronDecay heat010306 general physicsNuclear Experimentastro nuclear physicsPhysics:Energies::Energia nuclear [Àrees temàtiques de la UPC]NeutronsPnIsotopeta114:Física [Àrees temàtiques de la UPC]010308 nuclear & particles physicsBranching fractionPhysicsNeutron capture13. Climate actionr-processPhysics::Accelerator PhysicsFísica nuclearAtomic physics

description

The Beta-delayed neutron emission probability, Pn , of very exotic nuclei is crucial for the understanding of nuclear structure properties of many isotopes and astrophysical processes such as the rapid neutron capture process (r-process). In addition Beta-delayed neutrons are important in a nuclear power reactor operated in a prompt sub-critical, delayed critical condition, as they contribute to the decay heat inducing fission reactions after a shut down. The study of neutron-rich isotopes and the measurement of Beta-delayed one-neutron emitters (Beta1n) is possible thanks to the Rare Isotope Beam (RIB) facilities, where radioactive beams allow the production of exotic nuclei of interest, which can be studied and analyzed using specific detection systems. This contribution reports two recent measurements of Beta-delayed neutron emitters which allowed the determination of half-lives and the neutron branching ratio of isotopes in the mass region above A = 200 and N > 126, and a second experiment which confirmed 136Sb as the heaviest double neutron emitter (Beta2n) measured so far.

yearjournalcountryeditionlanguage
2017-01-01
http://hdl.handle.net/2117/111375