Information about Barium-139:


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Mass-Energy Data:

Atomic Mass:	138.908835	±	0.000003	amu
Excess Mass (Δ):	-84.919280	±	0.002980	MeV
Binding Energy:	1163.021360	±	0.002986	MeV
β^- Decay Energy:	2.316834	±	0.002632	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: 7/2-
Half life: 83.06 min ( 4983.6 sec., λ = 0.000139086 s^-1)
Mode of decay:
β^-
to
139
57
La
(Q = 2.317 MeV)
Possible parent nuclides:
β^- from
139
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)

Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev)	T_1/2	Spin	m(nm)	Q(b)	Ref. Std.	Method	Reference
0	84.6 m	7/2-	-0.973(5)		"[135,137Ba]"	CFBLS	ZP A329 407 (88)
			-0.98(2)		"[135,137Ba]"	CFBLS	NP A403 234 (83)
				-0.573(13) st		CFBLS	ZP A329 407 (88)
				-0.50(4) st	"[135,137Ba]"	CFBLS	NP A403 234 (83)

N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.