element

Information about Erbium-154:


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

Mass-Energy Data:

Atomic Mass:	153.932777	±	0.000006	amu
Excess Mass (Δ):	-62.617538	±	0.006010	MeV
Binding Energy:	1252.401219	±	0.006013	MeV
β^- Decay Energy:	-8.054000	±	0.112000	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: 0+
Half life: 3.73 min ( 223.8 sec., λ = 0.00309717 s^-1)
Mode of decay:
E.C.
to
154
67
Ho
(Q = 2.032 MeV) Branch ratio: 99.53 %
Mode of decay:
α
to
150
66
Dy
(Q = 4.280 MeV) Branch ratio: 0.47 %
Meta state at 3.025 Mev
Spin: 11- 3.73
Half life: 39 ns ( 3.9×10⁺¹⁰ sec., λ = 1.7773×10^-11 s^-1)
Mode of decay:
α
to
150
66
Dy
(Q = 7.305 MeV) Branch ratio: ~0.00 %
Possible parent nuclides:
E.C. from
154
69
Tm

α from
158
70
Yb

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
3016 + x	39 ns	11-	+0.169(13)			TDPAD	PR C30 169 (84)
			+0.19(3)			TDPAD	ZP A309 207 (83)

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