158Gd-Gadolinium
158Gd has 64 protons and 94 neutrons.
158Gd is a stable isotope.
The mass excess of 158Gd is -70689.969 with an uncertainty of ±0.976.
The mass was measured using a Penning Trap and Nuclear Physics and the related equations include:
Influence Equations
36.5% 157Gd(n, γ)158Gd 1
34.7% 158Pm-158Gd 2
10.4% 160Gd35Cl-158Gd37Cl 3
Reference
1. M.A. Islam, T.J. Kennett, W.V. Prestwich (1982) Neutron separation energies of some heavy nuclides
Physical Review C 25(6)
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.25.3184
2. M. Vilen, J.M. Kelly, A. Kankainen, M. Brodeur, A. Aprahamian, L. Canete, T. Eronen, A. Jokinen, T. Kuta, I.D. Moore, M.R. Mumpower, D.A. Nesterenko, H. Penttila, I. Pohjalainen, W.S. Porter, S. Rinta-Antila, R. Surman, A. Voss, J. Aysto (2018)
Precision Mass Measurements on Neutron-Rich Rare-Earth Isotopes at JYFLTRAP: Reduced Neutron Pairing and Implications for r-Process Calculations Physical Review Letters 120(26)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.262701
3. R.C. Barber, H.E. Duckworth, B.G. Hogg, J.D. Macdougall, W. McLatchie, P. Van Rookhuyzen (1964) The Mass Effect Corresponding to the Onset of Nuclear Deformation in the Region N~90
Physical Review Letters 12(21)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.12.597