Information about Praseodymium-139:


Wikipedia	Neutron Cross Sections	X-Ray Transitions	X-Ray Attenuation

Mass-Energy Data:

Atomic Mass:	138.908932	±	0.000009	amu
Excess Mass (Δ):	-84.829114	±	0.008267	MeV
Binding Energy:	1160.584133	±	0.008269	MeV
β^- Decay Energy:	-2.787000	±	0.050000	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: 4.41 h ( 15876 sec., λ = 4.36601×10^-05 s^-1)
Mode of decay:
E.C.
to
139
58
Ce
(Q = 2.129 MeV)
Possible parent nuclides:
E.C. from
139
60
Nd

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
822	45 ns	11/2-	+6.6(5)			TDPAD	ZP A291 319 (79)
			+7.2(6)			TDPAD	PRL 48 516 (82)

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