ADOPTED LEVELS, GAMMAS for 204At

Authors: C.J. Chiara and F.G. Kondev |  Citation: Nucl. Data Sheets 111,141 (2010) |  Cutoff date: 1-Oct-2009 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-3.89×103 keV 3S(n)= 7784 keV 25S(p)= 1854 keV 24Q(α)= 6070.3 keV 13
Reference: 2012WA38

References:
  A  204At IT decay (108 MS)  B  208Fr α decay
  C  181Ta(30Si,xγ) 








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0ABC 7+ 9.12 m 11 
% ε = 96.09 16
% α = 3.91 16
     
   587.30 20 A   10- 108 ms 10 
% IT = 100
  587.3 2 
  100
E3
     0
7+
   587.30+X 20   C        
   600.9 5   C (8)     600.9 5 
  100
D
     0
7+
   718.7+X 5   C     131.4 5 
  100

   587.30+X

  1003.1+X 7   C     284.4 5 
  100
D
   718.7+X

  1091.6 7   C (10)     490.7 5 
  100
E2
   600.9
(8)
  1301.7+X 9   C     298.6 5 
  100
D
  1003.1+X

  1596.8+X 10   C     295.1 5 
  100
D
  1301.7+X

  1680.1 9   C     588.5 5 
  100

  1091.6
(10)
  1808.8 9   C (12)     717.2 5 
  100
E2
  1091.6
(10)
  1842.7+X 12   C     245.9 5 
  100
D
  1596.8+X

  2020.1+X 13   C     177.4 5 
  100

  1842.7+X

  2216.3+X?  C     196.2 5 ?
  100

  2020.1+X

  2346.2 10   C     537.4 5 
  100

  1808.8
(12)

E(level): From a least-squares fit to Eγ

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Possibly a shears band that involves one or more h9/2
   587.30+X 20         
   718.7+X 5      131.4 5 
  100

   587.30+X

  1003.1+X 7         
  1301.7+X 9      298.6 5 
  100
D
  1003.1+X

  1596.8+X 10      295.1 5 
  100
D
  1301.7+X

  1842.7+X 12      245.9 5 
  100
D
  1596.8+X

  2020.1+X 13      177.4 5 
  100

  1842.7+X

  2216.3+X     196.2 5 ?
  100

  2020.1+X

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Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
   587.30 10- 108 ms 10 
% IT = 100
  587.3 2 E30.0714B(E3)(W.u.)=0.000176 17, α=0.0714 10, α(K)=0.0402 6, α(L)=0.0232 4, α(M)=0.00607 9, α(N)=0.001577 23, α(O)=0.000321 5, α(P)=3.76E-5 6, α(N+)=0.00194 3

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     07+ 9.12 m 11 
% ε = 96.09 16
% α = 3.91 16
Eα=5948 keV 5 (1974Ho27), 5952 keV 2 (1968Go12), 5948 keV 3 (1963Ho18), 5947 keV 3 (1967Tr06), 5953 keV 3 (1981Va27), and 5900 keV 30 (1961Fo04).
E(level): Eα=5948 keV 5 (1974Ho27), 5952 keV 2 (1968Go12), 5948 keV 3 (1963Ho18), 5947 keV 3 (1967Tr06), 5953 keV 3 (1981Va27), and 5900 keV 30 (1961Fo04).
   587.3010- 108 ms 10 
% IT = 100
Configuration=((π h9/2)+1(ν i13/2)-1).
   587.30+X   E(level): Possibly a shears band that involves one or more h9/2.
   718.7+X   E(level): Possibly a shears band that involves one or more h9/2.
E(level): Possibly a shears band that involves one or more h9/2.
  1003.1+X   E(level): Possibly a shears band that involves one or more h9/2.
  1301.7+X   E(level): Possibly a shears band that involves one or more h9/2.
E(level): Possibly a shears band that involves one or more h9/2.
  1596.8+X   E(level): Possibly a shears band that involves one or more h9/2.
  1842.7+X   E(level): Possibly a shears band that involves one or more h9/2.
  2020.1+X   E(level): Possibly a shears band that involves one or more h9/2.
E(level): Possibly a shears band that involves one or more h9/2.
  2216.3+X   E(level): Possibly a shears band that involves one or more h9/2.

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Additional Gamma Comments:

E(level)E(gamma)Comments
   587.30   587.3E(γ): From 1975Gi02 (204At IT decay (108 ms)). Other: 585.3 keV 2 in 1969MoZU (204At IT decay (108 ms))
M(γ): α(K)exp<0.13, K/LM=1.5 1 from 204At IT decay (108 ms) (1969MoZU)
   600.9   600.9M(γ): A2=-0.04 4. It is stated in 2008Ha36 that Eγ was part of an unresolved doublet
  1003.1+X   284.4M(γ): A2=-0.38 8
  1091.6   490.7M(γ): A2=+0.20 4
  1301.7+X   298.6M(γ): A2=-0.11 9
  1596.8+X   295.1M(γ): A2=-0.44 5. It is stated in 2008Ha36 that Eγ was part of an unresolved doublet
  1808.8   717.2M(γ): A2=+0.36 6
  1842.7+X   245.9M(γ): A2=-0.23 8

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