WWW Table of Radioactive Isotopes
 
 
 
4He
22

Half life: stable  
Abundance: 99.999863 3 %
Jp:0+
Sn (keV): 20577.62
Sp (keV): 19813.85
Prod. mode: Naturally occurring
 
ENSDF citation:NP A541 1 (1992)
Literature cut-off date: 8-Oct-1991
Author(s): J.H. Kelley, D.R. Tilley, H.R. Weller and G.M. Hale
References since cut-off: 4He decay from 1991-98 (NSR)


	

	

	

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