Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
24395Am148   Americium
J(π)=5/2-
T1/2=7.36e+3 y
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 57.176315
(0.002266)		 57.090 -2.570
BE 1829.831 1829.917
BE/A 7.530 7.531
<R2ch>1/2 = 5.9048 ± 0.0035 fm [3]
Charge-density Distribution [6]

β2= 0.237
β3= 0.000
β4= 0.073
β6= -0.027
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay5438.83
β- - decay-7.44
β+ - decay-1601.70
e-capture-579.70
1p - decay-4831.26
2p - decay-11663.67
1n - decay-6364.86
2n - decay-11902.48
2β- - decay-1514.99
β-,n-5700.37
β-,2n-12669.83
β-,d-8895.55
β-,t-9285.43
β-,α6161.38
β-,n,α515.20
EC,p-7531.30
EC,2p-13598.72
EC,α4177.33
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 2300 keV
T1/2 = 5.50 µs
SF
100%
α-energies
γ-energies
σ (b)
Capture 75.10
Fission 0.20
Total 84.00
 
μ (nm) Q (b) E* (keV)
+4.2(2)84
+4.32(6)0
+1.503(14)0
+1.61(4)0
+2.9(2)84
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.