Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
18777Ir110   Iridium
J(π)=3/2+
T1/2=10.50 h
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess -39.549372
(0.027945)
-39.930 -1.600
BE 1488.645 1489.026
BE/A 7.961 7.963
<R2ch>1/2 = 5.3812 ± 0.1061 fm [3]
Charge-density Distribution [6]

β2= 0.198
β3= 0.000
β4= -0.072
β6= 0.006
Excited States[1]
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Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay3836.94
β- - decay-2864.29
β+ - decay649.60
e-capture1671.60
1p - decay-3835.99
2p - decay-10304.76
1n - decay-8445.90
2n - decay-15356.42
- - decay-6521.46
β-,n-9756.16
β-,2n-19003.80
β-,d-12349.48
β-,t-14888.29
β-1689.81
β-,n,α-5436.46
EC,p-4907.76
EC,2p-10737.46
EC,α4392.91
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 186.16 keV
T1/2 = 30.30 ms
IT
100%
β+ endpoint energies
γ-energies
 
μ (nm) Q (b) E* (keV)
2.33(14)434
+0.941(11)0
+0.17(1)0
+6.21(5)434
  
[1] National Nuclear Data Center, Evaluated Nuclear Structure Data File, https://www.nndc.bnl.gov/ensdf/.
[2] M. Wang, G. Audi, A.H. Wapstra, F.G. Kondev, M. MacCormick, X. Xu, and B. Pfeiffer, Chinese Physics C, 2012, vol. 36, pp. 1603-2014.
[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.
[4] P. Möller, A.J. Sierk, T. Ichikawa, H. Sagawa, Atomic Data and Nuclear Data Tables, 2016, vol. 109-110, pp. 1-204.
[5] N.J. Stone, https://www-nds.iaea.org/publications/indc/indc-nds-0658/; Atomic Data and Nuclear Data Tables, 2016, vol. 111-112, pp. 1–28.
[6] H. de Vries, C.W. de Jager, C. de Vries, Atomic Data and Nuclear Data Tables, 1987, vol. 36, pp. 495-536.
[7] B. Pritychenko, M. Birch, B. Singh, M. Horoi, Atomic Data and Nuclear Data Tables, 2016, vol. 107, pp. 1–139; 2017, vol. 114, pp. 371–374.
[8] T. Kibedi and R.H. Spear, Atomic Data and Nuclear Data Tables, 2002, vol. 80, pp. 35-82.