2017Wu04: ¹⁵⁵La nuclide produced at RIBF-RIKEN facility using ⁹Be(²³⁸U,F) reaction at E=345 MeV/nucleon. Two experiments, optimized for transmission of ¹⁵⁸Nd and ¹⁷⁰Dy ions, were carried out with average beam intensities of 7 pnA and 12 pnA, respectively. Identification of nuclide of interest was made in BigRIPS separator by determining the atomic number and the mass-to-charge ratio using the tof-Bρ-ΔE method. Reaction products transported through ZeroDegree Spectrometer and implanted into beta-counting system WAS3ABi surrounded by EURICA array comprising of 84 HPGe detectors. Typical implantation rate ≈100 ions/s. Measured: implanted ion-β^--t, implanted ion-β^--γ-t and implanted ions-γ-t correlations. Deduced: T_1/2.

2018Sh11, 2018Fu08: ¹⁵⁵La nuclide produced at RIBF-RIKEN facility using the ⁹Be(²³⁸U,F) reaction at E=345 MeV/nucleon. Target=⁹Be with thickness of 2.92 mm. Nuclidic identification (PID) made by determining the atomic number Z and mass-to-charge (α/Q) ratio of ions using magnetic rigidity, time-of-flight, and energy loss (tof-Bρ-ΔE method) using the BigRIPS fragment separator. Time-of-flight measured with thin plastic scintillators placed at foci of BigRIPS. Bρ values deduced from trajectory reconstruction of measured position and angle of fragments at each focus using parallel plate avalanche counters (PPACs). ΔE values measured using multisampling ionization chambers (MUSICs). Two HPGe clovers were used for isomer tagging by detecting delayed gamma rays from known μs isomers in fission fragments. Separated ions were then transported to the EURICA setup, where decay measurements were made through ZeroDegree spectrometer. Comparison of measured cross sections with theoretical calculations using LISE⁺ abrasion-fission (AF) model.

2017Wu04, 2018Sh11, 2018Fu08 are interrelated and done by essentially same group