¹⁵²Sm-Samarium

 
152Sm has 62 protons and 90 neutrons.
152Sm is a stable isotope.
The mass excess of 152Sm is -74762.977 with an uncertainty of ±1.016.


The mass was measured using a Penning Trap and Nuclear Physics and the related equations include:

Influence				 Equations

        77.9%	   	           152Gd-152Sm 1 
            13.1%	   	           151Sm(n, γ)152Sm 2 
           4.9%	   	          152Eu(β+)152Sm 3 
   








Reference

1. S. Eliseev, C. Roux, K. Blaum, M. Block, C. Droese, F. Herfurth, H.-J. Kluge, M.I. Krivoruchenko, Yu. N. Novikov, E. Minaya-Ramirez, L. Schweikhard, V.M. Shabaev, F. Simkovic, I.I. Tupitsyn, K. Zuber, N.A. Zubova (2011)
Resonant Enhancement of Neutrinoless Double-Electron Capture in 152Gd Physical Review Letters  106(5)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.106.052504

2. L.V. Groshev, A.M. Demidov, V.F. Leonov, L.L. Sokolovskii (1971) γ-ray Spectrum from Reaction (n, γ) on 150Sm and 151Sm Samples
 Yadernaya Fizika  13(4)
https://www.osti.gov/biblio/4010071

3. D.E. Alburger, S. Ofer, M. Goldhaber (1958) Positron Spectra of 152Eu and 152mEu
Physical Review   112(6)
https://journals.aps.org/pr/abstract/10.1103/PhysRev.112.1998