ADOPTED LEVELS for 162Pm
Author: N. Nica | Citation: Nucl. Data Sheets 195, 1 (2024) | Cutoff date: 19-Sep-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=8340 keV SY | S(n)= 4030 keV SY | S(p)= 11100 keV SY | Q(α)= -4320 keV SY | ||
| Reference: 2021WA16 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0 | (2+) | 467 ms +38-18 % β- = 100 % β-n = 1.79 19 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | (2+) | 467 ms +38-18 % β- = 100 % β-n = 1.79 19 | Production σ(at 1 GeV/nucleon)=25 nb 3 (2012Ku26). |
2022Ki23 compiled for XUNDL database by B. Singh (McMaster)
2017Wu04 compiled for XUNDL database by F.γ. Kondev (ANL) (including Supplemental Material table of 94 measured β-decay half-lives)
2022Ki23: 162Pm nuclide produced in 9Be(238U,F),E(238U)=345 MeV/nucleon reaction at RIBF-RIKEN. Used energy loss (ΔE), magnetic rigidity (Bρ) and time-of-flight (tof) with BigRIPS separator, multisampling ionization chambers (MUSIC), parallel-plate avalanche counters (PPACs) and plastic scintillators for separating fission fragments. Radioactive ions implanted in Advanced Implantation Detector Array (AIDA) (a stack of six double-sided silicon strip detectors (DSSSDs)), centered in the BRIKEN neutron detector (140 3He-filled proportional counters embedded in large polyethylene moderator matrix). Measured γ, nγ-coin, (implanted ions)(β-) correlations, and (implanted ions)(β-)(neutron) correlations. Deduced T1/2 and %β-n
2017Wu04: 162Pm nuclide produced at RIBF-RIKEN facility using 9Be(238U,F) reaction at E=345 MeV/nucleon. Two experiments, optimized for the transmission of 158Nd and 170Dy ions, were carried out with average beam intensities of 7 pnA and 12 pnA, respectively. 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. Reaction products were transported through the ZeroDegree Spectrometer and implanted into the beta-counting system WAS3ABi that was surrounded by EURICA array comprising of 84 HPGe detectors. Typical implantation rate about 100 ions/s. Measured: implanted ion-β--t, implanted ion-β--γ-t and implanted ions-γ-t correlations. Deduced T1/2.
2012Ku26: 162Pm produced and identified in 9Be(238U,F), E=1 GeV/nucleon reaction using SIS-18 synchrotron facility at GSI. Target=1.6 g/cm2 9Be placed at the entrance of projectile Fragment Separator (FRS). Particle identification achieved by event-by-event in-flight analysis of time-of-flight, energy loss measurement, and magnetic rigidity (tof-ΔE’-Bρ). Time-of-flight measured using two plastic scintillation detectors, energy loss or deposit by ionization chambers (MUSIC), and magnetic rigidity by four time-projection chambers (TPC), which also provided energy deposit information. Isomer tagging method for known μs isomers was used to verify event-by-event identification and in-flight separation of new isotopes. Gamma rays from known isomers were recorded in coincidence with the incoming ions using either the RISING array of Ge detectors at GSI or only two Ge detectors, a stopper foil and a scintillator for veto signal. Measured production cross section. Comparison of measured σ with predictions from ABRABLA model and EPAX-3 model
Q-value: ΔQ(β-)=300, ΔS(n)=300, ΔS(p)=500, ΔQ(α)=420 (syst,2021Wa16)
Q-value: S(2n)=9290 300, S(2p)=24420 500, Q(β-n)=2560 300 (syst,2021Wa16)