element

Information about Europium-141:


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

Mass-Energy Data:

Atomic Mass:	140.924886	±	0.000030	amu
Excess Mass (Δ):	-69.968353	±	0.028335	MeV
Binding Energy:	1158.736605	±	0.028335	MeV
β^- Decay Energy:	-6.822000	±	0.299000	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: 40.7 s ( 40.7 sec., λ = 0.0170306 s^-1)
Mode of decay:
E.C.
to
141
62
Sm
(Q = 5.980 MeV)
Meta state at 0.096 Mev
Spin: 11/2- 40.7
Half life: 2.7 s ( 2.7 sec., λ = 0.256721 s^-1)
Mode of decay: γ (IT) (Q = 0.096 MeV) Branch ratio: 87.00 %
Mode of decay:
E.C.
to
141
62
Sm
(Q = 6.076 MeV) Branch ratio: 13.00 %
Possible parent nuclides:
E.C. from
141
64
Gd

E.C. +
1
1
p⁺ from
142
65
Tb

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	40 s	5/2+	+3.494(8)		[151Eu]	CFBLS	ZP A321 35 (85)
				+0.85(4)	[153Eu]	CFBLS	ZP A321 35 (85)

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