Information about Lutetium-172:


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Mass-Energy Data:

Atomic Mass:	171.939082	±	0.000004	amu
Excess Mass (Δ):	-56.744520	±	0.003299	MeV
Binding Energy:	1389.464951	±	0.003308	MeV
β^- Decay Energy:	-0.350000	±	0.050000	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: 4-
Half life: 6.70 days ( 578880 sec., λ = 1.19739×10^-06 s^-1)
Mode of decay:
E.C.
to
172
70
Yb
(Q = 2.519 MeV)
Meta state at 0.041 Mev
Spin: 1- 6.70
Half life: 3.7 min ( 222 sec., λ = 0.00312228 s^-1)
Mode of decay: γ (IT) (Q = 0.042 MeV)
Meta state at 0.109 Mev
Spin: (1)+ 3.7
Half life: 440 µs ( 0.00044 sec., λ = 1575.33 s^-1)
Mode of decay: γ (IT) (Q = 0.109 MeV)
Possible parent nuclides:
E.C. from
172
72
Hf

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	6.70 d	4-	2.893(15)		[177Lu]	NMR-ON	PR C54 1027 (96)
			2.25(10)		[177Lu]	NO/S	PR C13 1295 (76)
				3.80(3)	[177Lu]	NMR-ON	PR C54 1027 (96)

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