Author/Authors :
Radivojevic، نويسنده , , Z and Baumann، نويسنده , , P and Caurier، نويسنده , , E and Cederkنll، نويسنده , , J and Courtin، نويسنده , , S and Dessagne، نويسنده , , Ph and Jokinen، نويسنده , , A and Knipper، نويسنده , , A and Scornet، نويسنده , , G.Le and Lyapin، نويسنده , , V and Miehé، نويسنده , , Ch and Nowacki، نويسنده , , F and Nummela، نويسنده , , S and Oinonen، نويسنده , , M and Poirier، نويسنده , , E and Ramdhane، نويسنده , , M and Trzaska، نويسنده , , W.H and Walter، نويسنده , , G and ؤystِ، نويسنده , , J، نويسنده ,
Abstract :
Beta-delayed neutron decay of 33Na 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 33Na decay, showing evidence for strong feeding of states at about 4 MeV in 33Mg. By simultaneous β–γ–n counting the delayed neutron emission probabilities P1n=47(6)% and P2n=13(3)% were determined. The half-life value for 33Na, T1/2=8.0(3) ms, was measured by three different techniques, one employing identifying gamma transitions and two employing beta and neutron counting.
