Information about Germanium-69:


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Mass-Energy Data:

Atomic Mass:	68.927972	±	0.000003	amu
Excess Mass (Δ):	-67.093638	±	0.003080	MeV
Binding Energy:	598.979603	±	0.003081	MeV
β^- Decay Energy:	-4.013017	±	0.031206	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: 39.05 h ( 140580 sec., λ = 4.93062×10^-06 s^-1)
Mode of decay:
E.C.
to
69
31
Ga
(Q = 2.227 MeV)
Meta state at 0.086 Mev
Spin: 1/2- 39.05
Half life: 5.1 µs ( 5.1×10^-06 sec., λ = 135911 s^-1)
Mode of decay: γ (IT) (Q = 0.087 MeV)
Meta state at 0.397 Mev
Spin: 9/2+ 5.15
Half life: 2.81 µs ( 2.81×10^-06 sec., λ = 246672 s^-1)
Mode of decay: γ (IT) (Q = 0.398 MeV)
Possible parent nuclides:
E.C. from
69
33
As

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	39.0 h	5/2-	0.735(7)		[73Ge]	AB	PR C2 228 (70)
				0.024(5) st		AB	PR C2 228 (70)
398	2.8 ms	9/2+	-1.001(3)			SOPAD	PR C1 613 (70)

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