element

Information about Cesium-122:


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

Mass-Energy Data:

Atomic Mass:	121.916122	±	0.000018	amu
Excess Mass (Δ):	-78.131893	±	0.016329	MeV
Binding Energy:	1019.803838	±	0.016329	MeV
β^- Decay Energy:	-3.855000	±	0.299000	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+
Half life: 21.0 s ( 21 sec., λ = 0.033007 s^-1)
Mode of decay:
E.C.
to
122
54
Xe
(Q = 7.050 MeV)
Meta state at 0.076 Mev
Spin: 8- 21.0
Half life: 3.70 min ( 222 sec., λ = 0.00312228 s^-1)
Mode of decay:
E.C.
to
122
54
Xe
(Q = 7.126 MeV)
Meta state at 0.127 Mev
Spin: (5)- 3.70
Half life: 0.36 s ( 0.36 sec., λ = 1.92541 s^-1)
Mode of decay: γ (IT) (Q = 0.127 MeV)
Possible parent nuclides:
E.C. from
122
56
Ba

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)	21 s	1+	-0.1333(9)		[133Cs]	ABLS	NP A468 1 (87)
			0.133(2)		[133Cs]	AB	NP A292 144 (77)
				-0.19(1) st		ABLS	NP A468 1 (87)
(0)	4.2 m	8-	+5.41(3)		[133Cs]	ABLS	NP A468 1 (87)
				+3.29(8) st		ABLS	NP A468 1 (87)

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