ADOPTED LEVELS, GAMMAS for 243Es

Authors: C.D. Nesaraja, E.A. Mccutchan |  Citation: Nucl. Data Sheets 121, 695 (2014) |  Cutoff date: 30-Sep-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-4616 keV SYS(n)= 8124 keV SYS(p)= 1928 keV SYQ(α)= 8072 keV 10
Reference: 2012WA38

References:
  A  247Md α decay (1.2 S)  B  247Md α decay (0.25 S)

General Comments:

First identification: 1973Es02 using 233U(15N,5n) with excitation function.

Theoretical calculations:

2013Zd01: T1/2 for α decay calculated with phenomenological model based on Gamow theory with WKB approximation for Coulomb barrier penetration.

2012Po01: partial α decay T1/2 calculated with a universal decay law using α-like R matrix theory

2011Sa40: T1/2 and Q(α) calculated in the framework of the Coulomb and proximity potential model for deformed nuclei.

2010Ad19: low-lying one-quasi particle spectra and rotational bands calculated with a two-center shell model.

2008Th05: K x-ray energies calculated using a Dirac-Hartree Fock model.

2004Pa40: deformation parameters, pairing gap, single-particle energy levels, configurations calculated with a macroscopic-microscopic approach.

Q-value: ΔQ(β-)=299; ΔS(n)=329; ΔS(p)=207 (2012Wa38)

Q-value: S(2n)=15258 syst 306; S(2p)=5863 syst 288 (2012Wa38)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
      0.0+XA  (7/2+) 21 s 2 
% α = 61 6
% ε = 39 6
% SF < 1
     
      0.0+Y B (3/2-)        
   X+52.1A  (9/2+)        
      0.0+Z B (1/2-)        
  X+209.6A  (7/2-)     157.5 5 
  209.6 3 
   11 3 
  100

(E1)
   X+52.1
      0.0+X
(9/2+)
(7/2+)

M(γ): From estimated conversion electrons in 247Md α decay (1.2 s).

Back to top

Back to top

Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  X+209.6 (7/2-)     209.6 3 (E1)0.1017α=0.1017, α(K)=0.0776 12, α(L)=0.0180 3, α(M)=0.00445 7, α(N)=0.001229 18, α(O)=0.000314 5, α(P)=5.57×10-5 8, α(Q)=2.26E-6 4

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments

Back to top