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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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