Information about Barium-149:


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Mass-Energy Data:

Atomic Mass:	148.942460	±	0.000430	amu #
Excess Mass (Δ):	-53.598000	±	0.401000	MeV #
Binding Energy:	1212.413000	±	0.401000	MeV #
β^- Decay Energy:	7.536000	±	0.499000	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:

Half life: 0.344 s ( 0.344 sec., λ = 2.01496 s^-1)
Mode of decay: β^- to
149
57
La
(Q = 7.300 MeV)
Mode of decay: β^- +
1
0
n to
148
57
La
(Q = 1.100 MeV) Branch ratio: 0.43 %
Possible parent nuclides:
β^- +
1
0
n from
150
55
Cs

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)