6533b824fe1ef96bd1280849

RESEARCH PRODUCT

Beta-delayed neutron decay of 33Na

M. RamdhaneAri JokinenAri JokinenPh. DessagneG. Le ScornetZ. RadivojevicWladyslaw Henryk TrzaskaWladyslaw Henryk TrzaskaS. NummelaS. NummelaF. NowackiE. CaurierJuha ÄYstöJuha ÄYstöS. CourtinMarkku OinonenJoakim CederkällA. KnipperP. BaumannG. WalterV. G. LyapinV. G. LyapinE. PoirierCh. Miehé

subject

PhysicsNuclear and High Energy Physics010308 nuclear & particles physicsNeutron stimulated emission computed tomographyAnalytical chemistryHalf-lifeScintillator01 natural sciencesSpectral lineNuclear physicsBeta (plasma physics)0103 physical sciencesNeutron010306 general physicsInstrumentationDelayed neutron

description

Abstract Beta-delayed neutron decay of 33 Na has been studied using the on-line mass separator ISOLDE. The delayed neutron spectra were measured by time-of-flight technique using fast scintillators. Two main neutron groups at 800(60) and 1020(80) keV were assigned to the 33 Na decay, showing evidence for strong feeding of states at about 4 MeV in 33 Mg. By simultaneous β–γ–n counting the delayed neutron emission probabilities P 1n =47(6)% and P 2n =13(3)% were determined. The half-life value for 33 Na, T 1/2 =8.0(3) ms , was measured by three different techniques, one employing identifying gamma transitions and two employing beta and neutron counting.

https://doi.org/10.1016/s0168-9002(01)01347-x