ADOPTED LEVELS, GAMMAS for 229Ra

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 109, 2657 (2008) |  Cutoff date: 1-Jun-2008 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1850 keV 18S(n)= 4465 keV 15S(p)= 8110 keV 20Q(α)= 3589 keV 19
Reference: 2012WA38

References:
  A  229Fr β- decay 

General Comments:

Atomic masses: Penning trap mass spectrometer (2005He26,2008We02).

Levels: band(a) Kπ=1/2+ PARITY DOUBLET band. 1/2[631]

Levels: band(b) Kπ=3/2- PARITY DOUBLET band. 3/2[761]

Levels: band(d) Kπ=5/2- PARITY DOUBLET band. 5/2[752]

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










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0A 5/2+ 4.0 m 2 
% α = 100
     
    41.25 9 A (7/2)+       41.3
  100
M1(+E2)
     0.0
5/2+
   107.04 6 A (5/2)+       65.8 1 
   107.1 1 
  100 7 
   57 4 
M1
M1
    41.25
     0.0
(7/2)+
5/2+
   137.45 6 A 5/2- 0.66 ns 4      96.2 1 
   137.5 1 
  100
  100
E1
E1
    41.25
     0.0
(7/2)+
5/2+
   142.67 6 A 1/2+ 17.23 ns 12      35.6
   142.7 1 
 
  100
(E2)
E2
   107.04
     0.0
(5/2)+
5/2+
   168.74 6 A 3/2+ 106 ps 18      26.1
    61.8 1 
   168.8 1 
 
   29 2 
  100 4 

M1
M1
   142.67
   107.04
     0.0
1/2+
(5/2)+
5/2+
   212.91 6 A 3/2+ 18 ps 14      44.3 2 
    70.3 2 
    75.1 1 ?
   105.9 1 
   212.9 1 
    6.9 8 
    4.4 7 
    5.2 20 
   14.0 12 
  100 7 
M1+E2



M1(+E2)
   168.74
   142.67
   137.45
   107.04
     0.0
3/2+
1/2+
5/2-
(5/2)+
5/2+
   478.86 7 A 1/2- ≤ 30 ps    266.0 1 
   310.1 1 
   336.2 1 
   341.4 1 
   18.5 6 
   13.9 6 
  100
    1.96 9 
E1
E1
E1
(E2)
   212.91
   168.74
   142.67
   137.45
3/2+
3/2+
1/2+
5/2-
   501.37 7 A (5/2+)      332.5 1 
   358.7 1 
   363.9 1 
   15.3 20 
  100 4 
    4.5 4 

(E2)

   168.74
   142.67
   137.45
3/2+
1/2+
5/2-
   518.18 9 A (3/2)-      305.3 3 
   349.5 1 
   375.5 2 
   380.6 4 
   13.9 12 
  100 4 
   49.7 16 
    1.9 5 

E1


   212.91
   168.74
   142.67
   137.45
3/2+
3/2+
1/2+
5/2-
   541.46 8 A 5/2-      372.8 2 
   398.7 1 
   404.1 1 
   23 3 
  100 8 
   49 5 


(M1)
   168.74
   142.67
   137.45
3/2+
1/2+
5/2-
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   550.85 9 A 3/2-,5/2-,7/2-      413.6 2 
   550.8 1 
   65 12 
  100 10 
M1(+E2)

   137.45
     0.0
5/2-
5/2+
   563.07 9 A      394.8 2 
   562.9 1 
   70 11 
  100 7 


   168.74
     0.0
3/2+
5/2+
   565.64 8 A 3/2-      352.7 1 
   428.1 1 
   22 1 
  100 6 

M1(+E2)
   212.91
   137.45
3/2+
5/2-
   598.26 10 A      455.6 1 
   598.2 2 
   85 6 
  100 10 


   142.67
     0.0
1/2+
5/2+
   665.07 11 A      522.4 1 
   665.1 3 
   82 6 
  100 13 


   142.67
     0.0
1/2+
5/2+
   752.91 9 A (1/2,3/2)-      211.5 1 
   274.1 1 
   615.1 2 
   645.4 2 ?
   25 4 
   39 3 
  100 10 
   94 8 

M1(+E2)


   541.46
   478.86
   137.45
   107.04
5/2-
1/2-
5/2-
(5/2)+
   773.2 3 A      560.3 3 
  100

   212.91
3/2+
   813.88 14 A      149.4 2 ?
   601.0 2 
   671.2 2 
   31 2 
   17 4 
  100 10 



   665.07
   212.91
   142.67

3/2+
1/2+
   835.90 19 A      334.3 5 
   667.7 4 
   693.2 3 
    1.0E+2 3 
   93 16 
  100 13 



   501.37
   168.74
   142.67
(5/2+)
3/2+
1/2+
   870.88 11 A      727.9 2 
   763.6 2 
   871.0 2 
   60 6 
   41 6 
  100 9 



   142.67
   107.04
     0.0
1/2+
(5/2)+
5/2+
   934.62 18 A      792.1 3 
   827.5 2 
   94 24 
  100 10 


   142.67
   107.04
1/2+
(5/2)+
  1042.0 3 A      899.4 3 
  1041.7 6 
  100 17 
   18 9 


   142.67
     0.0
1/2+
5/2+
  1322.64 22 A      757.0 2 
  100

   565.64
3/2-
  1340.01 14 A      587.1 1 
  100

   752.91
(1/2,3/2)-
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  1376.12 20 A      441.5 1 
  100

   934.62

  1410.09 11 A      844.3 2 
   908.6 2 
  1197.3 2 
  1267.5 4 
  1410.3 3 
   30 4 
  100 11 
   76 8 
    1.0E+2 3 
    9 2 





   565.64
   501.37
   212.91
   142.67
     0.0
3/2-
(5/2+)
3/2+
1/2+
5/2+
  1424.87 7 A      611.1 4 
   858.9 2 
   861.6 2 
   883.3 2 
   923.1 2 
  1256.2 1 
  1282.3 1 
  1288.0 3 
   13 3 
    8.3 13 
   11.0 13 
   16 2 
    8.1 10 
  100 10 
   36 4 
    3.8 6 








   813.88
   565.64
   563.07
   541.46
   501.37
   168.74
   142.67
   137.45

3/2-

5/2-
(5/2+)
3/2+
1/2+
5/2-
  1437.02 14 A      919.1 2 
  1267.9 2 
  1300.1 4 
  1395.7 3 
   23 5 
  100 20 
    7.8 17 
    8.8 17 




   518.18
   168.74
   137.45
    41.25
(3/2)-
3/2+
5/2-
(7/2)+
  1461.30 11 A      525.6 1 ?
   590.0 2 
   625.6 3 
   943.1 2 
  1248.4 2 
  1292.8 2 
  1324.0 3 
   26.0 17 
   34 3 
   18.7 21 
   17.3 17 
   10 1 
  100 10 
    6.9 17 







   934.62
   870.88
   835.90
   518.18
   212.91
   168.74
   137.45



(3/2)-
3/2+
3/2+
5/2-
  1608.76 15 A     1440.0 2 
  1466.1 2 
  100 10 
   72 7 


   168.74
   142.67
3/2+
1/2+
  1696.84 18 A     1178.6 2 
  1554.3 3 
  100 10 
   61 8 


   518.18
   142.67
(3/2)-
1/2+
  1720.54 19 A      310.3 4 
  1577.9 2 
    1.0E+2 4 
   21 6 


  1410.09
   142.67

1/2+

E(level): Deduced by evaluators from least-squares fit to adopted γ-ray energies.

Jπ(level): Spin and parity assignments are based on γ-ray multipolarities and on rotational structure. Arguments for spin/parity assignments are given with some individual levels. Because of the high octupole components in the wave functions of low-energy states, rotational levels are seen with partners of the same K angular momentum projection and opposite parities ( "parity doublets. ") This interpretation has been confirmed by the enhanced E1 γ-ray transition probabilities between parity pair states.

Back to top

Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=1/2- PARITY DOUBLET band. 1/2[501]
   478.86 7  1/2- ≤ 30 ps      
   518.18 9  (3/2)-      305.3 3 
   349.5 1 
   375.5 2 
   380.6 4 
   13.9 12 
  100 4 
   49.7 16 
    1.9 5 

E1


   212.91
   168.74
   142.67
   137.45
3/2+
3/2+
1/2+
5/2-
   541.46 8  5/2-      372.8 2 
   398.7 1 
   404.1 1 
   23 3 
  100 8 
   49 5 


(M1)
   168.74
   142.67
   137.45
3/2+
1/2+
5/2-
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=3/2+ PARITY DOUBLET band. 3/2[631]
   212.91 6  3/2+ 18 ps 14       
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Kπ=5/2+ PARITY DOUBLET band. 5/2[633]
     0.0 5/2+ 4.0 m 2 
% α = 100
     
    41.25 9  (7/2)+       41.3
  100
M1(+E2)
     0.0
5/2+

Back to top

Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
   107.04 (5/2)+       65.8 1 M1 10.51α=10.51, α(L)=7.96 12, α(M)=1.91 3, α(N)=0.503 8, α(O)=0.1147 17, α(P)=0.0200 3, α(Q)=0.001572 23, α(N+)=0.639 10
(5/2)+      107.1 1 M1 12.77α=12.77, α(K)=10.22 15, α(L)=1.93 3, α(M)=0.462 7, α(N)=0.1219 18, α(O)=0.0278 4, α(P)=0.00485 7, α(Q)=0.000381 6, α(N+)=0.1550 23
   137.45 5/2- 0.66 ns 4      96.2 1 E1 0.1223B(E1)(W.u.)=0.000131 8, α=0.1223, α(L)=0.0927 14, α(M)=0.0224 4, α(N)=0.00581 9, α(O)=0.001264 18, α(P)=0.000197 3, α(Q)=9.69E-6 14, α(N+)=0.00728 11
5/2- 0.66 ns 4     137.5 1 E1 0.222B(E1)(W.u.)=4.5E-5 3, α=0.222, α(K)=0.1746 25, α(L)=0.0363 6, α(M)=0.00871 13, α(N)=0.00227 4, α(O)=0.000499 7, α(P)=7.99E-5 12, α(Q)=4.35E-6 7, α(N+)=0.00285 4
   142.67 1/2+ 17.23 ns 12     142.7 1 E2 2.14B(E2)(W.u.)=2.12 4, α=2.14, α(K)=0.279 4, α(L)=1.369 20, α(M)=0.372 6, α(N)=0.0982 14, α(O)=0.0209 3, α(P)=0.00306 5, α(Q)=1.83E-5 3, α(N+)=0.1223 18
   168.74 3/2+ 106 ps 18      61.8 1 M1 12.62B(M1)(W.u.)=0.030 6, α=12.62, α(L)=9.57 15, α(M)=2.29 4, α(N)=0.604 9, α(O)=0.1378 21, α(P)=0.0240 4, α(Q)=0.00189 3, α(N+)=0.768 12
3/2+ 106 ps 18     168.8 1 M1 3.53B(M1)(W.u.)=0.0051 10, α=3.53, α(K)=2.83 4, α(L)=0.525 8, α(M)=0.1255 18, α(N)=0.0331 5, α(O)=0.00755 11, α(P)=0.001317 19, α(Q)=0.0001032 15, α(N+)=0.0421 6
   212.91 3/2+ 18 ps 14      44.3 2 M1+E20.95 332.4×102B(E2)(W.u.)=4.×103 4, B(M1)(W.u.)=0.03 3, α=2.4E2 9, α(L)=1.8E2 7, α(M)=48 18, α(N)=13 5, α(O)=2.7 10, α(P)=0.39 14, α(Q)=0.0034 7, α(N+)=16 6
3/2+ 18 ps 14     212.9 1 M1(+E2) 1.2α=1.2 7, α(K)=0.8 7, α(L)=0.256 18, α(M)=0.0648 10, α(N)=0.0171 3, α(O)=0.00378 15, α(P)=0.00061 7, α(Q)=3.0×10-5 24, α(N+)=0.0215 5
   478.86 1/2- ≤ 30 ps    266.0 1 E1 0.0462α=0.0462, α(K)=0.0372 6, α(L)=0.00690 10, α(M)=0.001645 23, α(N)=0.000430 6, α(O)=9.60×10-5 14, α(P)=1.593E-5 23, α(Q)=1.008E-6 15, α(N+)=0.000543 8
1/2- ≤ 30 ps    310.1 1 E1 0.0327α=0.0327, α(K)=0.0263 4, α(L)=0.00479 7, α(M)=0.001141 16, α(N)=0.000299 5, α(O)=6.68×10-5 10, α(P)=1.116E-5 16, α(Q)=7.27E-7 11, α(N+)=0.000377 6
1/2- ≤ 30 ps    336.2 1 E1 0.0273α=0.0273, α(K)=0.0221 3, α(L)=0.00397 6, α(M)=0.000945 14, α(N)=0.000247 4, α(O)=5.54×10-5 8, α(P)=9.29E-6 13, α(Q)=6.14E-7 9, α(N+)=0.000313 5
1/2- ≤ 30 ps    341.4 1 (E2) 0.1041α=0.1041, α(K)=0.0542 8, α(L)=0.0369 6, α(M)=0.00973 14, α(N)=0.00257 4, α(O)=0.000558 8, α(P)=8.58×10-5 12, α(Q)=2.10E-6 3, α(N+)=0.00322 5
   541.46 5/2-      404.1 1 (M1) 0.315α=0.315, α(K)=0.254 4, α(L)=0.0462 7, α(M)=0.01103 16, α(N)=0.00291 4, α(O)=0.000663 10, α(P)=0.0001157 17, α(Q)=9.07×10-6 13, α(N+)=0.00369 6
   550.85 3/2-,5/2-,7/2-      413.6 2 M1(+E2)0.2 90.29α=0.29 12, α(K)=0.23 11, α(L)=0.042 13, α(M)=0.010 3, α(N)=0.0027 8, α(O)=0.00061 18, α(P)=0.00011 4, α(Q)=8.E-6 4, α(N+)=0.0034 10
   565.64 3/2-      428.1 1 M1(+E2)0.41 350.24α=0.24 5, α(K)=0.19 4, α(L)=0.036 6, α(M)=0.0087 12, α(N)=0.0023 3, α(O)=0.00052 7, α(P)=9.0×10-5 14, α(Q)=6.8E-6 15, α(N+)=0.0029 4
   752.91 (1/2,3/2)-      274.1 1 M1(+E2)0.3 50.85α=0.85 22, α(K)=0.68 20, α(L)=0.130 16, α(M)=0.031 3, α(N)=0.0083 8, α(O)=0.00188 20, α(P)=0.00033 5, α(Q)=2.5×10-5 7, α(N+)=0.0105 11

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.05/2+ 4.0 m 2 
% α = 100
Q=2.96 30 (1988Ah02), μ=0.5025 27
Other value: Q=+3.1 2 (1989Ne03). Other: 1988Ne09.
E(level): Other value: Q=+3.1 2 (1989Ne03). Other: 1988Ne09. Kπ=5/2+ PARITY DOUBLET band. 5/2[633].
    41.25(7/2)+   E(level): Kπ=5/2+ PARITY DOUBLET band. 5/2[633].
   212.913/2+ 18 ps 14  E(level): Kπ=3/2+ PARITY DOUBLET band. 3/2[631].
   478.861/2- ≤ 30 ps E(level): Kπ=1/2- PARITY DOUBLET band. 1/2[501].
   518.18(3/2)-   E(level): Kπ=1/2- PARITY DOUBLET band. 1/2[501].
   541.465/2-   E(level): Kπ=1/2- PARITY DOUBLET band. 1/2[501].

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
   107.04    65.8M(γ): From α(L1)exp + α(L2)exp=6.6 9, α(L3)exp|<0.26, α(M)exp=2.05 14.
   107.1M(γ): From α(L1)exp + α(L2)exp=1.53 22, α(L3)exp|<0.25, α(M)exp=0.77 11, α(n)exp=0.28 9.
   137.45    96.2M(γ): From α(L1)exp + α(L2)exp|<0.31.
   137.5M(γ): From α(K)exp|<0.94, α(L1)exp + α(L2)exp=0.017 7, α(L3)exp|<0.041.
   142.67   142.7M(γ): From α(K)exp|<0.48, α(L1)exp + α(L2)exp=0.72 9, α(L3)exp=0.35 4, α(M)exp=0.26 3, α(n)exp=0.080 10.
   168.74    61.8M(γ): From α(L1)exp + α(L2)exp=5.2 8, α(M)exp=3.2 5.
   168.8M(γ): From α(K)exp=3.1 4, α(L1)exp + α(L2)exp=0.32 5, α(L3)exp=0.015 8, α(M)exp=0.07 4
   212.91    44.3M(γ): From α(L1)exp+α(L2)exp=100 30. δ deduced by evaluators.
   212.9M(γ): From α(K)exp=1.05 14, α(L1)exp + α(L2)exp=0.27 4, α(M)exp=0.10 3.
   478.86   266.0M(γ): From α(K)exp=0.046 10
   310.1M(γ): From α(K)exp=0.020 3, α(L1)exp + α(L2)exp=0.0058 13
   336.2M(γ): From α(K)exp=0.0172 22, α(L1)exp + α(L2)exp=0.0039 16
   341.4M(γ): From α(K)exp=0.10 7
   550.85   413.6M(γ): From α(K)exp=0.23 7. δ deduced by evaluators.
   565.64   428.1M(γ): From α(K)exp=0.19 4. δ deduced by evaluators.
   752.91   274.1M(γ): From α(K)exp=0.66 15. δ deduced by evaluators.

Back to top