Information about Gallium-81:


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Mass-Energy Data:

Atomic Mass:	80.937753	±	0.000206	amu
Excess Mass (Δ):	-57.982741	±	0.192174	MeV
Binding Energy:	687.506933	±	0.192174	MeV
β^- Decay Energy:	8.320000	±	0.150000	MeV

"The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra, Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995.

Radioactive Decay Data:

Spin: (5/2-)
Half life: 1.217 s ( 1.217 sec., λ = 0.569554 s^-1)
Mode of decay:
β^-
to
81
32
Ge
(Q = 8.320 MeV)
Mode of decay: β^- +
1
0
n to
80
32
Ge
(Q = 3.390 MeV) Branch ratio: 11.90 %

R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)