Information about Dysprosium-159:


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Mass-Energy Data:

Atomic Mass:	158.925736	±	0.000003	amu
Excess Mass (Δ):	-69.176777	±	0.003122	MeV
Binding Energy:	1300.881779	±	0.003129	MeV
β^- Decay Energy:	-1.837723	±	0.002683	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: 144.4 days ( 1.24762×10⁺⁰⁷ sec., λ = 5.55577×10^-08 s^-1)
Mode of decay:
E.C.
to
159
65
Tb
(Q = 0.366 MeV)
Meta state at 0.352 Mev
Spin: 11/2- 144.4
Half life: 122 µs ( 0.000122 sec., λ = 5681.53 s^-1)
Mode of decay: γ (IT) (Q = 0.353 MeV)
Possible parent nuclides:
E.C. from
159
67
Ho

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	144 d	3/2-	-0.354(3)		[163Dy]	CFBLS	PC Neugart (87)
				+1.37(2)	[163Dy]	CFBLS	PC Neugart (87)

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