A dataset of one-neutron stripping cross sections in the 209Bi(6Li, 5Li)210Bi∗ reaction

One-neutron stripping process between 6Li and 209Bi was studied at 28, 30, and 34 MeV using the in-beam γ-ray spectroscopy method. The experiment of 6Li+209Bi was performed at Legnaro National Laboratories (LNL), Italy. A stable 6Li3+ beam with an average current intensity of 2.0 enA is produced by the Tandem-XTU accelerator. The 6Li beam energies are 28, 30, and 34 MeV, corresponding to 0.99, 1.06, and 1.21 times the height of the Coulomb barrier, respectively. A 550-µg/cm2 209Bi target backed with a 110-µg/cm2 12C foil is situated at the center of the detector array. The 12C foil is used to stop the residuals and eliminate or minimize the Doppler effect of the observed γ-ray. The GALILEO (Gamma detectors Array of Legnaro INFN Laboratories for nuclEar spectrOscopy) array was utilized to detect γ-rays emitted from various residuals. The GALILEO array is made up of 25 HPGe detectors spaced 235 mm apart from the target center and mounted on four support rings at different angles: 152◦ (5 detectors), 129◦ (5 detectors), 119◦ (5 detectors), and 90◦ (10 detectors). Additionally, each HPGe detector has an anti-Compton BGO crystal detector. The total measured full-energy-peak efficiency was 1.83% at 1408 keV. The energy resolution was 0.20% at 1408 keV transition of 152Eu calibration source (FWHM = 2.88 keV). In this experiment, γ ray energies detected by the GALILEO array range from 30 to 3000 keV. At the center of the GALILEO array was the Si ball detection array known as EUCLIDES (EUroball Charged Light particle Identification DEtector Sphere). The 40 sets of 130- and 1000-µm-thick ∆E-E telescopes can perform charged particle discrimination. A Faraday cup (FC) was positioned 3 meters from the end of the beam to measure itsintensity. The acquisition system in the experiment was an XDAQ-based, full digital acquisition system.