Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
23995Am144   Americium
J(π)=(5/2)-
T1/2=11.90 h
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 49.39219
(0.002419)		 49.810 -2.170
BE 1805.330 1804.912
BE/A 7.554 7.552
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.226
β3= 0.000
β4= 0.095
β6= -0.012
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay5922.42
β- - decay-1756.22
β+ - decay-219.92
e-capture802.08
1p - decay-4061.76
2p - decay-10059.28
1n - decay-7102.40
2n - decay-13321.41
2β- - decay-4858.74
β-,n-8124.10
β-,2n-15997.81
β-,d-10314.47
β-,t-11599.57
β-,α4783.50
β-,n,α-1453.86
EC,p-5353.31
EC,2p-10577.90
EC,α6046.60
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 2500 keV
T1/2 = 163.00 ns
SF
100%
α-energies
γ-energies
 
μ (nm) Q (b) E* (keV)
(+)2.6(2)~2500
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.