Author: N. Nica |  Citation: Nucl. Data Sheets 170, 1 (2020) |  Cutoff date: 16-Aug-2020 

 Full ENSDF file | Adopted Levels (PDF version) 

Q(β-)=8850 keV SYS(n)= 4840 keV SYS(p)= 11640 keV SYQ(α)= -5230 keV SY
Reference: 2017WA10

General Comments:

Data set first introduced in ENSDF database by F.γ. Kondev based on the XUNDL compilation of 2017Wu04 also done by F.γ. Kondev (ANL) (including Supplemental Material table of 94 measured β-decay half-lives)

2017Wu04, 2020Wu04: The 153Ba nuclide was produced at the RIBF-RIKEN facility using the 9Be(238U,F) reaction at E=345 MeV/nucleon. Identification of the nuclide of interest was made in the BigRIPS separator by determining the atomic number and the mass-to-charge ratio of the ion using the tof-Bρ-ΔE method. The reaction products were transported through the ZeroDegree Spectrometer and implanted into the beta-counting system WAS3ABi that was surrounded by the EURICA array comprising of 84 HPGe detectors. The typical implantation rate was about 100 ions/s. Measured: implanted ion-β--t, implanted ion-β--γ-t and implanted ions-γ-t correlations. Deduced: T1/2.

2017Wu04 gave the first positive identification of 153Ba nuclide and T1/2 measurement. 2020Wu04 (same group) reconfirm 153Ba production and retrieve consistent T1/2 value at higher uncertainty.

1994Be24: Identification in reaction: Pb(238U,F) at 750 MeV/nucleon. Residual products Fragment Recoil Separator (FRS), time-of-flight technique.

Q-value: Estimated uncertainties (2017Wa10): ΔQ(β-)=360, ΔS(n)=420, ΔS(p)=500, ΔS(α)=500

Q-value: S(2n)=8890 530, S(2p)=26410 580, Q(β-n)=4850 360, from 2017Wa10 (based on syst).

  0.0 0.245 s 18 
% β- = 100
% β-n = ?

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Additional Level Data and Comments:


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