element

Information about Holmium-156:


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

Mass-Energy Data:

Atomic Mass:	155.929710	±	0.000215	amu #
Excess Mass (Δ):	-65.474000	±	0.200000	MeV #
Binding Energy:	1272.183000	±	0.200000	MeV #
β^- Decay Energy:	-1.215000	±	0.213000	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+)
Half life: 56 min ( 3360 sec., λ = 0.000206294 s^-1)
Mode of decay:
E.C.
to
156
66
Dy
(Q = 5.060 MeV)
Meta state at 0.052 Mev
Spin: (2+) 56
Half life: 9.5 s ( 9.5 sec., λ = 0.0729629 s^-1)
Mode of decay: γ (IT) to
156
67
Ho
(Q = 5.060 MeV)
Possible parent nuclides:
E.C. from
156
68
Er

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	56 m	4(+)	+2.99(3)		[165Ho]	LRIMS	NP A504 549 (89)
				+2.3(2) st	[165Ho]	LRIMS	NP A504 549 (89)

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