Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
24495Am149   Americium
J(π)=(6-)
T1/2=10.10 h
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 59.881141
(0.002051)		 59.780 -2.830
BE 1835.198 1835.299
BE/A 7.521 7.522
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.249
β3= 0.000
β4= 0.063
β6= -0.029
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay5138.48
β- - decay1427.34
β+ - decay-947.71
e-capture74.29
1p - decay-5163.84
2p - decay-12115.43
1n - decay-5366.47
2n - decay-11731.33
2β- - decay-834.48
β-,n-5373.91
β-,2n-11066.84
β-,d-8724.40
β-,t-8004.82
β-,α7329.09
β-,n,α794.90
EC,p-7284.89
EC,2p-13317.89
EC,α4739.83
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 0+x keV
T1/2 = 6.50 µs
SF
100%
E = 0+x keV
T1/2 = 900.00 µs
SF
100%
E = 86.1 keV
T1/2 = 26.00 m
β-
99.9639%		EC
0.0361%
E = 19464 keV
T1/2 = -1
p
100%
β- endpoint energies
γ-energies
σ (b)
Fission 2300.00
 		   
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.