ADOPTED LEVELS for 165Gd
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 194, 460 (2024) | Cutoff date: 31-Oct-2022
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=4063.1 keV 20 | S(n)= 4903.4 keV 16 | S(p)= 10582.6 keV 24 | Q(α)= -2279 keV 7 | ||
| Reference: 2021WA16 |
| E(level) (keV) | T1/2(level) |
| 0 | 11.3 s 13 % β- = 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 11.3 s 13 % β- = 100 | From x-ray and γ-ray spectra, 1998Ic02 suggest that a 50.3 keV γ ray is associated with the β decay of 165Gd to 165Tb. E(level): From x-ray and γ-ray spectra, 1998Ic02 suggest that a 50.3 keV γ ray is associated with the β decay of 165Gd to 165Tb. |
1998Ic02: 165Gd produced by proton-induced fission of 238U at E(p)=20 MeV followed by mass separation. The identification is based on the observation of Tb K-x rays in β-gated x ray/γ ray spectra for α=181 fraction corresponding to 165Gd16O{++. The fission yield is estimated to be ≈7 μb (1998Ic02).
2017Wu04: 165Gd nuclide was produced at the RIBF-RIKEN facility using the 9Be(238U,F) reaction at E=345 MeV/nucleon. The 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, followed by transportation of separated products through the ZeroDegree Spectrometer and implanted into the beta-counting system WAS3ABi surrounded by EURICA array of 84 HPGe detectors. Measured T1/2 of decay of 165Gd by (implanted ions)β- and (implanted ions)β-γ correlated events.
2018Vi02: mass measurement
2014Ha38, 2010Ha38, 2007Ha57: Q(β-) value measured from total absorption gamma-ray spectrum
Theoretical calculations: 2020Li53, 2019No05, 1985Bi05, 1983Sa22
Q-value: S(2n)=11279.8 15, S(2p)=20504 7 (2021Wa16)