Information about Strontium-91:


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Mass-Energy Data:

Atomic Mass:	90.910210	±	0.000006	amu
Excess Mass (Δ):	-83.638978	±	0.005964	MeV
Binding Energy:	788.399924	±	0.005965	MeV
β^- Decay Energy:	2.707322	±	0.005916	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: 5/2+
Half life: 9.63 h ( 34668 sec., λ = 1.99939×10^-05 s^-1)
Mode of decay:
β^-
to
91
39
Y
(Q = 2.699 MeV)
Possible parent nuclides:
β^- from
91
37
Rb

β^- +
1
0
n from
92
37
Rb

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	9.5 h	5/2+	-0.885(2)		[87Sr]	CFBLS	PR C41 2883 (90)
				+0.047(12)	[87Sr]	CFBLS	PR C41 2883 (90)
94	88.9 ns	3/2+	-0.35(2)			TDPAC	PR C48 562 (93)

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