Information about Strontium-85:


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

Strontium-85 is used to study bone formation and metabolism.

Mass-Energy Data:

Atomic Mass:	84.912933	±	0.000004	amu
Excess Mass (Δ):	-81.102665	±	0.003480	MeV
Binding Energy:	737.435675	±	0.003481	MeV
β^- Decay Energy:	-3.255000	±	0.025000	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: 9/2+
Half life: 64.84 days ( 5.60218×10⁺⁰⁶ sec., λ = 1.23728×10^-07 s^-1)
Mode of decay:
E.C.
to
85
37
Rb
(Q = 1.065 MeV)
Meta state at 0.239 Mev
Spin: 1/2- 64.84
Half life: 67.63 min ( 4057.8 sec., λ = 0.000170818 s^-1)
Mode of decay: γ (IT) (Q = 0.239 MeV) Branch ratio: 86.60 %
Mode of decay:
E.C.
to
85
37
Rb
(Q = 1.304 MeV) Branch ratio: 13.40 %
Possible parent nuclides:
E.C. from
85
39
Y

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	64.8 d	9/2+	-1.000(2)		[87Sr]	CFBLS	PR C41 2883 (90)
			-1.0005(3)		[87Sr]	ABLRFS	ZP A326 493 (87)
				+0.29(3) st	[87Sr]	CFBLS	PR C41 2883 (90)
239	68 m	1/2-	+0.600(4)		[87Sr]	CFBLS	PR C41 2883 (90)
			+0.599(2)		[87Sr]	ABLRFS	ZP A326 493 (87)

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