9Be-Beryllium
9Be has 4 protons and 5 neutrons.
9Be is a stable isotope.
The mass excess of 9Be is 11348.451 with an uncertainty of ±0.076.
The mass was measured using a Penning Trap and Nuclear Physics and the related equations include:
Influence Equations
67.1% 9Be-7Li0.286 1
32.9% 9Be(n,γ)10Be 2
Reference
1. R. Ringle, M. Brodeur, T. Brunner, S. Ettenauer, M. Smith, A. Lapierre,V.L. Ryjkov, P. Delheij, G.W.F. Drake, J. Lassen, D. Lunney, J. Dilling,
(2009), High-precision Penning trap mass measurements of 9,10Be and the one-neutron halo nuclide 11Be, Physics Letters B
675(2)
https://www.sciencedirect.com/science/article/pii/S0370269309004067
2. T.J. Kennett, W. V. Prestwich, J. S. Tsai (1986), The 14N(n, γ)15N reaction as both an intensity and energy standard, Nuclear Instruments & Methods in Physics Research Section A
249(2-3)
https://ui.adsabs.harvard.edu/abs/1986NIMPA.249..366K/abstract