Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
24195Am146   Americium
J(π)=5/2-
T1/2=432.60 y
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 52.936198
(0.001794)		 53.140 -2.430
BE 1817.929 1817.725
BE/A 7.543 7.542
<R2ch>1/2 = 5.8928 ± 0.0042 fm [3]
Charge-density Distribution [6]

β2= 0.237
β3= 0.000
β4= 0.086
β6= -0.024
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay5637.83
β- - decay-767.35
β+ - decay-1042.82
e-capture-20.82
1p - decay-4479.99
2p - decay-10954.39
1n - decay-6647.08
2n - decay-12598.59
2β- - decay-3097.73
β-,n-6860.63
β-,2n-14354.81
β-,d-9591.66
β-,t-10436.86
β-,α5417.87
β-,n,α-462.82
EC,p-6670.59
EC,2p-12215.88
EC,α5119.21
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 2200 keV
T1/2 = 1.20 µs
SF
100%
α-energies
γ-energies
σ (b)
Capture 587.00
Fission 3.20
 
μ (nm) Q (b) E* (keV)
+4.34(5)0
+1.58(1)0
+1.61(3)0
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.