ADOPTED LEVELS, GAMMAS for 209Tl

Authors: J. Chen and F.G. Kondev |  Citation: Nucl. Data Sheets 126, 373 (2015) |  Cutoff date: 30-Sep-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=3976 keV 8S(n)= 4960 keV 8S(p)= 7660 keV 30Q(α)= 2710 keV SY
Reference: 2012WA38

References:
  A  209Hg β- decay  B  213Bi α decay
  C  9Be(238U,xγ)  D  210Pb(t,α)








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCD 1/2+ 2.162 m 7 
% β- = 100
     
   323.81 5 ABCD 3/2+      323.70 2 
  100
M1+E2
     0.0
1/2+
   738.4 4 A  D      738.4 4 
  100

     0.0
1/2+
   946.6 8 A  D      208.2 6 
  100

   738.4

   984.3  C  (7/2+)      661.2
  100

   323.81
3/2+
   984.3+X  C  (9/2+)        X
 

   984.3
(7/2+)
  1121.1+X  C  (13/2+)      136.8
  100
E2
   984.3+X
(9/2+)
  1121.1+Z  C  (17/2+) 95 ns 11       Y
 

  1121.1+X
(13/2+)
  1230 10    D        
  1369 10    D (11/2-)        
  1748.2 6 A  D (5/2+)     1424.2 4 
  100

   323.81
3/2+

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

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Additional Gamma Data:















E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityMixing
Ratio		Conversion
Coefficient		Additional Data
   323.81 3/2+      323.70 2 M1+E21.30 +23-190.174α=0.174 18, α(K)=0.131 16, α(L)=0.0330 15, α(M)=0.0080 3, α(N)=0.00202 8, α(O)=0.000377 17, α(P)=2.80×10-5 25
  1121.1+X (13/2+)      136.8E2 1.652α=1.652, α(K)=0.386 6, α(L)=0.945 14, α(M)=0.248 4, α(N)=0.0620 9, α(O)=0.01072 15, α(P)=0.000374 6, α(N+)=0.0731 11

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
   323.813/2+   XREF: d(325).
   738.4   XREF: d(739).
   946.6   XREF: d(947).
   984.3(7/2+)   Jπ(level): From 9Be(238U,Xγ) (2009Al29), based on comparison of the observed levels with shell-model predictions.
   984.3+X(9/2+)   Jπ(level): From 9Be(238U,Xγ) (2009Al29), based on comparison of the observed levels with shell-model predictions.
  1121.1+X(13/2+)   Jπ(level): From 9Be(238U,Xγ) (2009Al29), based on comparison of the observed levels with shell-model predictions.
  1121.1+Z(17/2+) 95 ns 11  Jπ(level): From 9Be(238U,Xγ) (2009Al29), based on comparison of the observed levels with shell-model predictions.
  1748.2(5/2+)   XREF: d(1748).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   738.4   738.4E(γ): From 209Hg β- decay
I(γ): From 209Hg β- decay
   946.6   208.2E(γ): From 209Hg β- decay
I(γ): From 209Hg β- decay
   984.3+X     XE(γ): Not observed directly, but required by the coincidence relationships. α low-energy transition (les than 85.6 keV, which is the binding energy of the K-shell electrons) is expected to depopulate this state, as indicated by the low intensity of the observed Kα x-rays in 9Be(238U,Xγ) (2009Al29)
  1121.1+X   136.8M(γ): α(exp)=1.5 4 (2009Al29) from intensity balances in 9Be(238U,Xγ)
  1121.1+Z     YE(γ): Not observed directly, but required by the coincidence relationships. α low-energy transition (les than 85.6 keV, which is the binding energy of the K-shell electrons) is expected to depopulate this state, as indicated by the low intensity of the observed Kα x-rays in 9Be(238U,Xγ) (2009Al29)

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