81-Tl-187 basic

81-thallium-187

Atomic Mass: 186.9761700 +- 0.0004300 amu #
Excess Mass: -22197.000 +- 401.000 keV #
Binding Energy: 1468164.000 +- 401.000 keV #
Beta Decay Energy: B- -7322.000 +- 499.000 keV #

"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.

Spin: (1/2+)
Half life: ~51 s
Mode of decay: Electron capture to Hg-187
- Branch ratio: <100.00 %
- Decay energy: 5.900 MeV
Mode of decay: Alpha to Au-183
- Branch ratio: >0.0 %
- Decay energy: 5.539 MeV
Meta state at 0.335 Mev
Spin: (9/2-)
Half life: 15.60 s
Mode of decay: Electron capture to Hg-187
- Branch ratio: <100.00 %
- Decay energy: 6.235 MeV
Mode of decay: IT
- Branch ratio: <100.00 %
- Decay energy: 0.335 MeV
Mode of decay: Alpha to Au-183
- Branch ratio: >0.0 %
- Decay energy: 5.874 MeV
Possible parent nuclides:
Electron capture from Pb-187
Alpha from Bi-191

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	51 s	(1/2+)	1.55(6)		[205Tl]	CFBLS	IoPconf132 221 (93)
335	15.6 s	(9/2-)	(+)3.79(2)		[205Tl]	CFBLS	IoPconf132 221 (93)
				-2.43(5)		CFBLS	IoPconf132 221 (93)

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