Information about Samarium-151:


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

Mass-Energy Data:

Atomic Mass:	150.919928	±	0.000003	amu
Excess Mass (Δ):	-74.586250	±	0.002891	MeV
Binding Energy:	1244.850083	±	0.002898	MeV
β^- Decay Energy:	0.076689	±	0.000544	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: 90 years ( 2.8386×10⁺⁰⁹ sec., λ = 2.44186×10^-10 s^-1)
Mode of decay:
β^-
to
151
63
Eu
(Q = 0.077 MeV)
Possible parent nuclides:
β^- from
151
61
Pm

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	90 y	5/2-	-0.3611(13)		[147Sm]	LRFS	JP G16 105 (90)
			-0.363(2)		[147Sm]	CFBLS	IzF 49 24 (85)/YadF 44 1134 (86)
			0.368(3)		[147Sm]	CFBLS	PR C31 240 (85)
			-0.3630(5)		[147Sm]	CFBLS	ZP A302 359 (81)
				+0.71(7)	[147Sm]	LRFS	JP G16 105 (90)
				+0.65(15)	[147Sm]	CFBLS	IzF 49 24 (85)/YadF 44 1134 (86)
				0.67(7)	[147Sm]	CFBLS	PR C31 240 (85)
				+0.67(7)	[147Sm]	CFBLS	ZP A302 359 (81)
92	77 ns	9/2+	-0.95(5)			TDPAC	NP A223 195 (74)
105	0.48 ns	3/2-	+0.31(11)			IPAC	IzF 35 135 (71)
168	0.38 ns	5/2+	+1.8(5)			"IPAC, R"	NP A223 195 (74)

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