element

Information about Gold-187:


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

Mass-Energy Data:

Atomic Mass:	186.964562	±	0.000163	amu #
Excess Mass (Δ):	-33.010000	±	0.152000	MeV #
Binding Energy:	1480.542000	±	0.152000	MeV #
β^- Decay Energy:	-4.865000	±	0.283000	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: 1/2+
Half life: 8.4 min ( 504 sec., λ = 0.00137529 s^-1)
Mode of decay:
E.C.
to
187
78
Pt
(Q = 3.600 MeV)
Mode of decay:
α
to
183
77
Ir
(Q = 4.790 MeV) Branch ratio: 0.0030 %
Meta state at 0.121 Mev
Spin: 9/2- 8.4
Half life: 2.3 s ( 2.3 sec., λ = 0.301368 s^-1)
Mode of decay: γ (IT) (Q = 0.121 MeV)
Possible parent nuclides:
E.C. from
187
80
Hg

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	8.4 m	1/2+	+0.535(15)			LRIMS	NP A493 224 (89)/PRL 58 1516 (87)
			+0.531(12)			LRIMS	NP A512 241 (90)
			0.72(7)			AB	NP A348 25 (80)

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