⁷¹Ga-Gallium

 
71Ga has 31 protons and 40 neutrons.
71Ga is a stable isotope.
The mass excess of 71Ga is -70139.127 with an uncertainty of ±0.811.


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

Influence				 Equations

	  53.3%		              71Ga-85Rb0.835 1 
	 33.1%		            71Ga(n, γ)72Ga 2 
   12.2%		               71Ga-71Ge 3 









Reference

1. C. Guenaut, G. Audi, D. Beck, K. Blaum, G. Bollen, P. Delahaye, F. Herfurth, A. Kellerbauer, H.-J. Kluge, J. Libert, D. Lunney, S. Schwarz, L. Schweikhard, C. Yazidjian (2007) 
High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N = 40  Physical Review C  75(4)
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.75.044303

2. H. Linusson, R. Hardell, S. Arnell (1970) Low Lying Energy Levels in 70Ga and 72Ga Excited in Thermal Neutron Capture Reactions
 Arkiv for Fysik 40(197-214)
 https://www.osti.gov/biblio/4010365 

3. M. Alanssari, D. Frekers, T. Eronen, L. Canete, J. Hakala, M. Holl, A. Jokinen, A. Kankainen, J. Koponen, I.D. Moore, D.A. Nesterenko, I. Pohjalainen, J. Reinikainen, S. Rinta-Antila, A. Voss (2016)
Precision 71Ga-71Ge mass-difference measurement,  International Journal of Mass Spectrometry 406
https://www.sciencedirect.com/science/article/abs/pii/S1387380616300689