Information about Samarium-148:


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Mass-Energy Data:

Atomic Mass:	147.914818	±	0.000003	amu
Excess Mass (Δ):	-79.346590	±	0.002906	MeV
Binding Energy:	1225.396454	±	0.002913	MeV
β^- Decay Energy:	-3.107333	±	0.017321	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:

Atomic Percent Abundance: 11.3%
Spin: 0+
Half life: 8E+15 years ( 2.5232×10⁺²³ sec., λ = 2.7471×10^-24 s^-1)
Mode of decay:
α
to
144
60
Nd
(Q = 1.986 MeV)
Possible parent nuclides:
β^- from
148
61
Pm

E.C. from
148
63
Eu

α from
152
64
Gd

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
550	7.3 ps	2+	+0.51(4)		[150Sm 334]	TF	ZP A328 275 (87)
			+0.61(7)		[152Sm 122]	TF	HFI 33 37 (87)
				-1.0(3)		CER	JPJS 34 443 (73)

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