ADOPTED LEVELS, GAMMAS for 206At

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-)=-3306 keV 16S(n)= 7526 keV 18S(p)= 2207 keV 17Q(α)= 5887 keV 5
Reference: 2021WA16

References:
  A  206Rn ε decay  B  210Fr α decay
  C  (HI,xnγ) 








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0 B  (6)+ 30.5 m 6 
% ε = 99.10 8
% α = 0.90 8
     
   0+XA C (7+)        
     5.7 3 ? B         
    31.05 22 ? B         
   126.30 10  B      120.7 3 ?
  126.3 1 
   16 5 
  100 7 


     5.7
     0.0

(6)+
   137.57 23 ? B      106.5 2 ?
  137.6 3 ?
   20 6 
  100 15 


    31.05
     0.0

(6)+
   148.00 10  B      116.9 3 ?
  148.0 1 
   36 8 
  100 13 


    31.05
     0.0

(6)+
   201.0 4 ? B      195.3 2 ?
  100

     5.7

   322.30 10 ? B      322.3 1 ?
  100

     0.0
(6)+
   340.40 10  B      340.4 1 
  100

     0.0
(6)+
   444.2 5  B      444.2 5 
  100

     0.0
(6)+
   657.3 3 ? B      626.3 3 ?
  651.5 3 ?
   44 15 
  100 8 


    31.05
     5.7


   686.0+X 10   C (9+)     686 1 
 

   0+X
(7+)
   806.7+X 14   C (10-) 813 ns 21    121 1 
  100
[E1]
   686.0+X
(9+)
  1276.3+X 14   C (11+)     590 1 
  100

   686.0+X
(9+)
  1347.7+X 17   C     541 1 
  100

   806.7+X
(10-)
  1393.3+X 17   C     117 1 
  100

  1276.3+X
(11+)
  1422.4+X 16   C (12-)     616 1 
  100

   806.7+X
(10-)
  1622.5+X 15   C     346 1 
  100

  1276.3+X
(11+)
  1740.7+X 20   C     393 1 
  100

  1347.7+X

  1797.4+X 19   C (13-)     375 1 
  100

  1422.4+X
(12-)
  1814.3+X 17   C (14-)     392 1 
  100

  1422.4+X
(12-)
  1961.8+X 17   C     339 1 
  100

  1622.5+X

  2002.3+X 17   C (14-)     188 1 
  580 1 
 
 


  1814.3+X
  1422.4+X
(14-)
(12-)
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2010.4+X 16   C     388 1 
  734 1 
 
 


  1622.5+X
  1276.3+X

(11+)
  2103.3+X 19   C     289 1 
  100

  1814.3+X
(14-)
  2133.3+X 20   C     319 1 
  100

  1814.3+X
(14-)
  2251.1+X 17   C     249 1 
  289 1 
  437 1 
 
 
 



  2002.3+X
  1961.8+X
  1814.3+X
(14-)

(14-)
  2291.3+X 19   C     289 1 
  100

  2002.3+X
(14-)
  2552.1+X 20   C     301 1 
  100

  2251.1+X

  2645.3+X 20   C     831 1 
  100

  1814.3+X
(14-)
  2796.3+X 19   C     505 1 
  693 1 
 
 


  2291.3+X
  2103.3+X


  2902.3+X 22   C     257 1 
  100

  2645.3+X

E(level): From a least-squares fit to Eγ, unless otherwise stated

Jπ(level): From (HI,xnγ) (1999Fe10), unless otherwise stated.

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   806.7+X (10-) 813 ns 21    121 1 [E1]0.288B(E1)(W.u.)=1.05E-7 4, α=0.288 7, α(K)=0.228 6, α(L)=0.0461 12, α(M)=0.01097 29, α(N)=0.00280 7, α(O)=0.000573 15, α(P)=6.97E-5 18

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0(6)+ 30.5 m 6 
% ε = 99.10 8
% α = 0.90 8
Q=-0.42 22, μ=4.39 17
Configuration=π(h9/2+1)#ν(f5/2-1).
   0+X(7+)   Configuration=π(h9/2+1)#ν(f5/2-1). The assignment is tentative.
   806.7+X(10-) 813 ns 21  Configuration=π(h9/2+1)#ν(i13/2-1). The assignment is tentative.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   806.7+X   121E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1276.3+X   590E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1347.7+X   541E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1393.3+X   117E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1422.4+X   616E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1622.5+X   346E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1740.7+X   393E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1797.4+X   375E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1814.3+X   392E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  1961.8+X   339E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  2002.3+X   188E(γ): From (HI,xnγ) (1999Fe10)
   580E(γ): From (HI,xnγ) (1999Fe10)
  2010.4+X   388E(γ): From (HI,xnγ) (1999Fe10)
   734E(γ): From (HI,xnγ) (1999Fe10)
  2103.3+X   289E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  2133.3+X   319E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  2251.1+X   249E(γ): From (HI,xnγ) (1999Fe10)
   289E(γ): From (HI,xnγ) (1999Fe10)
   437E(γ): From (HI,xnγ) (1999Fe10)
  2291.3+X   289E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  2552.1+X   301E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  2645.3+X   831E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)
  2796.3+X   505E(γ): From (HI,xnγ) (1999Fe10)
   693E(γ): From (HI,xnγ) (1999Fe10)
  2902.3+X   257E(γ): From (HI,xnγ) (1999Fe10)
I(γ): From (HI,xnγ) (1999Fe10)

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