element

Information about Iridium-192:


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

Iridium-192 is used to test the integrity of pipeline welds, boilers and aircraft parts.

Mass-Energy Data:

Atomic Mass:	191.962602	±	0.000003	amu
Excess Mass (Δ):	-34.835823	±	0.002871	MeV
Binding Energy:	1524.288590	±	0.002883	MeV
β^- Decay Energy:	1.459689	±	0.001853	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: 4+
Half life: 73.827 days ( 6.37865×10⁺⁰⁶ sec., λ = 1.08667×10^-07 s^-1)
Mode of decay:
β^-
to
192
78
Pt
(Q = 1.460 MeV) Branch ratio: 95.13 %
Mode of decay:
E.C.
to
192
76
Os
(Q = 1.046 MeV) Branch ratio: 4.87 %
Meta state at 0.056 Mev
Spin: 1- 73.827
Half life: 1.45 min ( 87 sec., λ = 0.00796721 s^-1)
Mode of decay: γ (IT) (Q = 0.057 MeV) Branch ratio: 99.98 %
Mode of decay:
β^-
to
192
78
Pt
(Q = 1.517 MeV) Branch ratio: 0.02 %
Meta state at 0.168 Mev
Spin: (11-) 1.457
Half life: 241 years ( 7.60114×10⁺⁰⁹ sec., λ = 9.11899×10^-11 s^-1)
Mode of decay: γ (IT) (Q = 0.168 MeV)

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	74.2 d	4-	1.924(10)		[193Ir]	NMR/ON	ZP A295 385 (80)
			sign positive			NO/CP	ZP A340 235 (91)
				+2.15(6)	[189Ir]	R	PRL 77 5016 (96)
				+2.28(6)	[193Ir]	"NMR/ON, R"	PR C32 582 (85)/ZP A295 385 (80)
				+2.0(2)	[193Ir]	NO/S ME	HFI 30 355 (86)/HFI 9 343 (81)
				+2.4(1)	[193Ir]	NO/S	HFI 22 19 (85)

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