ADOPTED LEVELS, GAMMAS for 249Es

Author: Khalifeh Abusaleem |  Citation: Nucl. Data Sheets 112, 2129 (2011) |  Cutoff date: 31-Dec-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-2.34×103 keV SYS(n)= 7.20×103 keV SYS(p)= 3.35×103 keV SYQ(α)= 6.94×103 keV SY
Reference: 2012WA38

General Comments:

Calculations, compilations:

Favored α decays: 1993Bu09, 1992Bu03

Ground state properties: 1997Mo25, 1995Mo29

Single-particle Nilsson levels: 2004Pa04, 1994Cw02

2004Pa04 calculate the following single-particle level sequence: g.s. 7/2[633], 0.17 MeV 3/2[521], 0.28 MeV 1/2[521], 0.61 MeV 7/2[514], 0.67 MeV 5/2[642], 0.75 MeV 1/2[400]

1994Cw02 calculate the following single-particle level sequence: g.s. 7/2[633], 0.28 MeV 3/2[521], 0.39 MeV 1/2[521], 0.81 MeV 7/2[514], 0.83 MeV 5/2[642], 0.92 MeV 1/2[660]

Q-value: Note: Current evaluation has used the following Q record

Q-value: -2443 syst 7196 syst 3352 syst 6936 2009AuZZ

Q-value: Estimated ΔQ(β-)=31, ΔS(n)=60, ΔS(p)=31, ΔQ(α)=30







E(level)
(keV)
Jπ(level) T1/2(level)E(γ)
(keV)
M(γ)
    0 7/2+ 102.2 m 6 
% ε = 99.43 8
% α = 0.57 8
  
  353.2 4  (7/2-,9/2-)     353.2 4 
(E1)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  353.2 (7/2-,9/2-)     353.2 4 (E1)0.0334α=0.0334, α(K)=0.0261 4, α(L)=0.00547 8, α(M)=0.001340 19, α(N)=0.000370 6, α(O)=9.54×10-5 14, α(P)=1.748E-5 25, α(Q)=8.06E-7 12, α(N+)=0.000484 7

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
    07/2+ 102.2 m 6 
% ε = 99.43 8
% α = 0.57 8
Iα/I(K| x ray)=0.007 1 (1970Ah01).
  353.2(7/2-,9/2-)   7/2[514] state (2005He27).

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