ADOPTED LEVELS, GAMMAS for 206Fr

Author: F.G. Kondev |  Citation: Nucl. Data Sheets 201, 346 (2025) |  Cutoff date: 21-Jan-2025 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-4810 keV 30S(n)= 8008 keV 29S(p)= 826 keV 28Q(α)= 6923 keV 3
Reference: 2021WA16

References:
  A  210Ac α decay  B  181Ta(30Si,5nγ)








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0A  3+ ≈ 16 s
% ε = 11.6 33
% α = 88.4 33
     
     0.0+XAB 7+ ≈ 16 s
% α = 84.7 15
% ε = 15.3 15
     
   531.0+X 10 AB 10- 0.7 s 1 
% α = 13 2
% IT = 87 2
  531 1 
   100
[E3]
     0.0+X
7+
   574.4+X 12  B        
   655.6+X 12  B        
  1098.1+X 11  B (11)     523.7 5 
  567.1 5 
    57 6 
  ≈100


   574.4+X
   531.0+X

10-
  1208.7+X 11  B (11)     553.1 5 
  634.4 5 
  677.7 5 
  ≈100
    54 4 
    63 6 



   655.6+X
   574.4+X
   531.0+X


10-
  1592.3+X 12  B     383.5 5 
  494.2 5 
   100
    40 6 


  1208.7+X
  1098.1+X
(11)
(11)
     Y B J        
   140.4+Y 5  B J+1     140.4 5 
   100
(M1)
     Y
J
   407.9+Y 7  B J+2     267.5 5 
   100
(M1)
   140.4+Y
J+1
   670.3+Y 9  B J+3     262.4 5 
   100
(M1)
   407.9+Y
J+2
   964.4+Y 10  B J+4     294.1 5 
   100
(M1)
   670.3+Y
J+3
  1212.7+Y 10  B     542.4 5 
   100

   670.3+Y
J+3
  1242.0+Y 12  B J+5     277.6 5 
   100
(M1)
   964.4+Y
J+4
  1484.6+Y 13  B J+6     242.6 5 
   100
(M1)
  1242.0+Y
J+5
  1683.1+Y 14  B J+7     198.5 5 
   100
(M1)
  1484.6+Y
J+6
  1909.7+Y 15  B J+8     226.6 5 
   100

  1683.1+Y
J+7
  2214.1+Y 15  B J+9     304.4 5 
   100

  1909.7+Y
J+8

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   531.0+X 10- 0.7 s 1 
% α = 13 2
% IT = 87 2
  531 1 [E3]0.1086B(E3)(W.u.)=4.5E-5 7, α=0.1086 16, α(K)=0.0536 8, α(L)=0.0406 6, α(M)=0.01081 17, α(N)=0.00285 5, α(O)=0.000608 10, α(P)=8.59E-5 14, α(Q)=1.779E-6 27
   140.4+Y J+1     140.4 5 (M1)5.45α=5.45 9, α(K)=4.39 8, α(L)=0.806 14, α(M)=0.1922 33, α(N)=0.0504 9, α(O)=0.01126 20, α(P)=0.001807 31, α(Q)=0.0001009 18
   407.9+Y J+2     267.5 5 (M1)0.893α=0.893 13, α(K)=0.720 11, α(L)=0.1309 20, α(M)=0.0311 5, α(N)=0.00817 12, α(O)=0.001825 27, α(P)=0.000293 4, α(Q)=1.634×10-5 24
   670.3+Y J+3     262.4 5 (M1)0.942α=0.942 14, α(K)=0.760 11, α(L)=0.1380 21, α(M)=0.0329 5, α(N)=0.00862 13, α(O)=0.001926 29, α(P)=0.000309 5, α(Q)=1.724×10-5 26
   964.4+Y J+4     294.1 5 (M1)0.687α=0.687 10, α(K)=0.555 8, α(L)=0.1006 15, α(M)=0.02394 35, α(N)=0.00628 9, α(O)=0.001403 21, α(P)=0.0002251 33, α(Q)=1.256×10-5 19
  1242.0+Y J+5     277.6 5 (M1)0.806α=0.806 12, α(K)=0.650 10, α(L)=0.1181 18, α(M)=0.0281 4, α(N)=0.00737 11, α(O)=0.001647 24, α(P)=0.000264 4, α(Q)=1.474×10-5 22
  1484.6+Y J+6     242.6 5 (M1)1.170α=1.170 18, α(K)=0.944 14, α(L)=0.1718 26, α(M)=0.0409 6, α(N)=0.01072 16, α(O)=0.00240 4, α(P)=0.000384 6, α(Q)=2.145×10-5 32
  1683.1+Y J+7     198.5 5 (M1)2.049α=2.049 32, α(K)=1.652 26, α(L)=0.302 5, α(M)=0.0718 11, α(N)=0.01884 30, α(O)=0.00421 7, α(P)=0.000675 11, α(Q)=3.77×10-5 6

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     03+ ≈ 16 s
% ε = 11.6 33
% α = 88.4 33
Q=-0.359 8, μ=+3.97 5
Configuration=[π(h9/2+1)#ν(p3/2-1)]3+.
     0.0+X7+ ≈ 16 s
% α = 84.7 15
% ε = 15.3 15
Q=-0.143 11, μ=+4.70 5
Configuration=[π(h9/2+1)#ν(f5/2-1)]7+.
   531.0+X10- 0.7 s 1 
% α = 13 2
% IT = 87 2
Q=+1.255 28, μ=+2.45 3
Configuration=[π(h9/2+1)#ν(i13/2-1)]10-.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   531.0+X   531E(γ): From 1981Ri04. Uncertainty estimated by the evaluator from comparison of 391γ in 202At: Eγ=391 keV in 1981Ri04 and 391.7 2 keV in 1992Hu04 (adopted in 2008Zh05)

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