Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
24093Np147   Neptunium
J(π)=(5+)
T1/2=1.03 h
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 52.317758
(0.017166)		 52.270 -2.090
BE 1812.040 1812.088
BE/A 7.550 7.550
<R2ch>1/2 = 
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 - decay4558.91
β- - decay2190.61
β+ - decay-1420.65
e-capture-398.65
1p - decay-5545.29
2p - decay-13154.28
1n - decay-5066.13
2n - decay-11281.31
2β- - decay805.85
β-,n-4343.58
β-,2n-9989.75
β-,d-8274.37
β-,t-7505.47
β-,α7446.38
β-,n,α900.94
EC,p-8308.28
EC,2p-14886.28
EC,α3637.62
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 0+x keV
T1/2 = 7.22 m
β-
99.88%		IT
0.12%
β- endpoint energies
γ-energies
    
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.