Information about Hafnium-180:


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Mass-Energy Data:

Atomic Mass:	179.946549	±	0.000003	amu
Excess Mass (Δ):	-49.789502	±	0.002521	MeV
Binding Energy:	1446.298162	±	0.002533	MeV
β^- Decay Energy:	-0.854082	±	0.002930	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:

Atomic Percent Abundance: 35.100%
Spin: 0+
Stable Isotope
Meta state at 1.141 Mev
Spin: 8-
Half life: 5.5 h ( 19800 sec., λ = 3.50074×10^-05 s^-1)
Mode of decay: γ (IT) (Q = 1.141 MeV) Branch ratio: 99.70 %
Mode of decay:
β^-
to
180
73
Ta
(Q = 0.287 MeV) Branch ratio: 0.30 %
Possible parent nuclides:
β^- from
180
71
Lu

E.C. from
180
73
Ta

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
93	1.53 ns	2+	+0.61(3)			IPAC	ZP A355 363 (96)
			+0.51(8)		[178Hf 93]	ME	BAPS 17 545 (72)
			+0.53(3)			CEAD	NP A109 201 (68)
			+0.77(7)			IPAC	ZP 165 57 (61)
				-2.00(2) a		Mu-X	PR C30 350 (84)
309	75.3 ps	4+	+1.4(2)			IPAC	ZP A355 363 (96)
			+2.0(4)			IPAC	ZP 165 57 (61)
641	9.0 ps	6+	+2.0(4)			IPAC	ZP A355 363 (96)
1142	5.5 h	8-	+8.7(10)		[180Hf 93]	ME	PRL 27 1593 (71)
			9.0(9)			NO/S	PR C14 656 (76)
				+4.6(3)	[178Hf 93]	NO/S	PL 46B 62 (73)

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