Information about Terbium-155:


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

Mass-Energy Data:

Atomic Mass:	154.923500	±	0.000013	amu
Excess Mass (Δ):	-71.258898	±	0.012196	MeV
Binding Energy:	1271.460962	±	0.012198	MeV
β^- Decay Energy:	-2.094500	±	0.001897	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: 3/2+
Half life: 5.32 days ( 459648 sec., λ = 1.508×10^-06 s^-1)
Mode of decay:
E.C.
to
155
64
Gd
(Q = 0.821 MeV)
Possible parent nuclides:
E.C. from
155
66
Dy

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	5.32 d	3/2+	+2.01(2)		[159Tb]	CFBLS	ZP A337 367 (90)
			2.0(2)		[159Tb]	NO/S	CzJP B29 361 (79)
				+1.41(6)	[159Tb]	CFBLS	ZP A337 367 (90)

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