38Ar-Argon


 
38Ar has 18 protons and 20 neutrons.
38Ar is a stable isotope.
The mass excess of 38Ar is -34714.827 with an uncertainty of ±0.195.


The mass was measured using a Penning Trap and the related equations include:
Influence				 Equations
           32%		  	         38Ar-39K0.974 1  
		      27.4%			     38Km-38Ar 2  		  
   23.5%			          38K-38Ar 2  




 





Reference

1. F. Herfurth, A. Kellerbauer, F. Ames, G. Audi, D. Beck, K. Blaum, G. Bollen, O. Engels, H.-J. Kluge, D. Lunney, R.B. Moore, M. Oinonen, E. Sauvan, C. Scheidenberger, S. Schwarz, G. Sikler, C. Weber (2002)
Accurate mass measurements of very short-lived nuclei  European Physical Journal A  15(17-20)
https://epja.epj.org/articles/epja/abs/2002/08/100500017/100500017.html

2. T. Eronen, V.-V. Elomaa, J. Hakala, J.C. Hardy, A. Jokinen, I.D. Moore, M. Reponen, J. Rissanen, A. Saastamoinen, C. Weber, J. Aysto (2009)
QEC Values of the Superallowed β Emitters 34Cl and 38K,  Physical Review Letters  103(25)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.103.252501