ADOPTED LEVELS, GAMMAS for 225Ra

Authors: A. K. Jain , R. Raut , J. K. Tuli |  Citation: Nucl. Data Sheets 110, 1409 (2009) |  Cutoff date: 1-Dec-2008 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=356 keV 5S(n)= 4904 keV 3S(p)= 7090 keV 14Q(α)= 5097 keV 5
Reference: 2012WA38

References:
  A  229Th α decay  B  225Fr β- decay
  C  226Ra(d,t), (pol d,t)  D  226Ra(3He,α)

General Comments:

Assignment: decay product of 233U series (1947En03 and 1947Ha02); chem (1950Ha52).

Fission isomer was not observed in 226Ra(n,2n) with E=0.7-10 MeV and with E=14.5 MeV (1972Ku26).

Fission barrier was deduced by 1970Ba22 as 7.0 MeV 5 from their 226Ra(n,F) data.

1989Sh07: Experimental data interpreted in terms of the coexistence of reflection symmetry and reflection asymmetry. Odd particle is suggested to polarize the soft nuclei towards or away from octupole deformation.

1988Le13: Calculated level energies including octupole and quadrupole deformations with a reflection-asymmetric rotor core. Calculations of transition probabilities between parity doublet bands. See also 1986Ch43 and 1986Re04 for discussions.

1975Iv06: Calculated nonrotational states.

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
     0.0ABC  1/2+ 14.9 d 2 
% β- = 100
     
    25.41 2 ABCD 5/2+ 0.88 ns 4     25.39 2 
  100
(E2)
     0.0
1/2+
    31.56 3 AB   3/2- 2.1 ns 5     31.50 5 
  100
E1
     0.0
1/2+
    42.77 3 ABCD 3/2+ < 3 ns    17.36 3 
   42.82 5 
  110 60 
  100 7 
(M1)
(M1+E2)
    25.41
     0.0
5/2+
1/2+
    55.16 6 AB   (1/2-)      23.6
   55.11 3 
   46 4 
  100 16 
(M1+E2)

    31.56
     0.0
3/2-
1/2+
    69.36 6 AB   (7/2)-      37.8 1 
   43.990 10 
    0.50 25 
  100 5 
(E2)
E1
    31.56
    25.41
3/2-
5/2+
   100.50 6 A  D (9/2)+      31.10 5 
   75.09 7 
  100 10 
   72 16 

E2
    69.36
    25.41
(7/2)-
5/2+
   101  C  (3/2+)        
   111.60 5 ABCD 7/2+      11.1 1 
   42.3 1 
   68.83 3 
   86.25 4 
 
    6.2 7 
   10.2 10 
  100 8 


E2
M1+E2
   100.50
    69.36
    42.77
    25.41
(9/2)+
(7/2)-
3/2+
5/2+
   120.36 6 AB   5/2-      50.99 4 
   77.63 5 
   94.92 8 
   39 10 
  100 14 
   30 7 



    69.36
    42.77
    25.41
(7/2)-
3/2+
5/2+
   149.96 6 ABCD 3/2+      94.73 2 
  107.108 8 
  124.55 5 
  150.04 3 
   33 3 
  100 6 
   85 8 
    7.3 19 

M1+E2
(M1)
M1+E2
    55.16
    42.77
    25.41
     0.0
(1/2-)
3/2+
5/2+
1/2+
   179.75 2 AB   5/2+      30.3 1 
   68.09 4 
  110.332 8 
  136.990 4 
  148.15 4 
  154.336 10 
  179.757 7 
   <3.5
    5.8 9 
   10.5 11 
  100 3 
   75 6 
   65 2 
   16.7 14 
(M1+E2)
M1+E2

M1(+E2)
E1
M1+E2
E2
   149.96
   111.60
    69.36
    42.77
    31.56
    25.41
     0.0
3/2+
7/2+
(7/2)-
3/2+
3/2-
5/2+
1/2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  ≈203.5?A    (9/2-)     134.2 1 
 
(M1)
    69.36
(7/2)-
  ≈215.8?A           
   220.55 7 A CD (7/2+,9/2+)     109.2
  119.98 2 
  194.3 3 
   86 16 
  100 40 
   60 40 



   111.60
   100.50
    25.41
7/2+
(9/2)+
5/2+
   225.2 1  B   3/2-      45.2 2 
   75.1 1 
  169.9 1 
  182.3 1 
  193.5 3 
  199.7 1 
  225.1 1 
    5.6 10 
   45 4 
   20 2 
  100
   15 3 
   35 3 
   55 4 


M1+E2




   179.75
   149.96
    55.16
    42.77
    31.56
    25.41
     0.0
5/2+
3/2+
(1/2-)
3/2+
3/2-
5/2+
1/2+
   226.9 3 A    (11/2+)     126.4 2 
  100
[M1,E2]
   100.50
(9/2)+
   236.25 2 ABCD 5/2+      56.518 5 
   86.40 5 
  115.98 10 
  124.65 5 
  166.976 7 
  193.509 4 
  204.690 5 
  210.853 3 
  236.249 8 
    6.5 5 
   58 3 
    0.40 7 
   16.7 14 
    4.7 3 
  100
   13.5 7 
   63 7 
    3.95 21 
M1+E2
M1

(M1)

M1
(E1)
M1
E2
   179.75
   149.96
   120.36
   111.60
    69.36
    42.77
    31.56
    25.41
     0.0
5/2+
3/2+
5/2-
7/2+
(7/2)-
3/2+
3/2-
5/2+
1/2+
   243.56 4 A CD 7/2+     123.193 13 
  131.926 5 
  142.962 5 
  174.82 2 
  200.807 16 
  218.154 17 
   37.3 18 
   83 3 
  100 3 
   <8
   17.0 8 
   46 6 

M1
M1


M1
   120.36
   111.60
   100.50
    69.36
    42.77
    25.41
5/2-
7/2+
(9/2)+
(7/2)-
3/2+
5/2+
  ≈248.5?A         68.8?
 

   179.75
5/2+
   260.2 1  B   (5/2)-      80.3 1 
  110.3 1 
  139.8 1 
  190.8 1 
  217.5 1 
  228.6 1 
  234.8 1 
   10.8 21 
   83 13 
   46 4 
  100 9 
   37 4 
   13.7 17 
   60 5 

(E1)
M1+E2
M1



   179.75
   149.96
   120.36
    69.36
    42.77
    31.56
    25.41
5/2+
3/2+
5/2-
(7/2)-
3/2+
3/2-
5/2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   267.92 5 A CD 7/2+      31.57 9 
  117.99 15 
  147.64 5 
  156.409 9 
  167.45 5 
  225.149 19 
  242.4 2 
    5.7 9 
    1.1 4 
   17.2 18 
  100 3 
    4.3 9 
    6.0 9 
    7.9 13 


E1
M1


M1
   236.25
   149.96
   120.36
   111.60
   100.50
    42.77
    25.41
5/2+
3/2+
5/2-
7/2+
(9/2)+
3/2+
5/2+
   272.15 15 A         30.3
   68.8?
  160.6
  171.75 2 
 
 
 
 




   243.56
   203.5
   111.60
   100.50
7/2+
(9/2-)
7/2+
(9/2)+
   284.49 5 A    7/2+      63.7 2 
  104.6 2 ?
  134.2
  172.926 18 
  183.928 8 
  215.100 10 
  259.08 4 
    3.6 15 
    6 2 
   ≤2.2
   80 8 
  100 5 
   97 8 
   24 4 



M1
M1(+E2)


   220.55
   179.75
   149.96
   111.60
   100.50
    69.36
    25.41
(7/2+,9/2+)
5/2+
3/2+
7/2+
(9/2)+
(7/2)-
5/2+
   293 8   C         
   321.76 8 A CD (9/2+)      49.75 8 
   53.75 20 
   78.3 2 
  101.1 2 
  142.0 1 
  210.15 8 
  221.22 5 
  252.43 3 
  296.2 2 
   11.1 11 
    5.8 16 
    4.2 11 
    9.5 16 
    5.8 16 
  100 22 
   12 4 
   49 7 
   ≈6









   272.15
   267.92
   243.56
   220.55
   179.75
   111.60
   100.50
    69.36
    25.41

7/2+
7/2+
(7/2+,9/2+)
5/2+
7/2+
(9/2)+
(7/2)-
5/2+
  ≈328A           
  ≈335?A           
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  ≈347?A           
   390.0 4 A CD (11/2+)     163.34 17 
  169.09 3 
  174.22 22 
 
 
 



   226.9
   220.55
   215.8
(11/2+)
(7/2+,9/2+)

   394.2 1  B   3/2-,5/2     134.0 1 
  157.9 1 
  169.0 3 
  244.2 1 
  324.7 2 
  368.8 2 
   45 15 
   65 15 
  100 50 
   35 10 
   20 5 
   40 15 






   260.2
   236.25
   225.2
   149.96
    69.36
    25.41
(5/2)-
5/2+
3/2-
3/2+
(7/2)-
5/2+
   394.72 13 A    (3/2,5/2,7/2)+     126.5 3 
  151.6 3 
  158.42 12 
  174.22 11 
   23 11 
  ≈53
  100 11 
 


M1(+E2)

   267.92
   243.56
   236.25
   220.55
7/2+
7/2+
5/2+
(7/2+,9/2+)
   400 8   C         
  ≈417?A           
   448 10    D        
   478.4 1 AB   (3/2)     242.1 1 
  253.4 1 
  328.6 1 
  358.1 3 
  435.6 1 
  453.0 1 
  478.3 1 
   24 3 
   29 5 
   20 5 
    8 4 
   71 8 
   50 7 
  100 10 







   236.25
   225.2
   149.96
   120.36
    42.77
    25.41
     0.0
5/2+
3/2-
3/2+
5/2-
3/2+
5/2+
1/2+
   484 8   CD        
   487 3 A C  (13/2+)        
   535 8   CD        
   546 8   C         
   603 3 A C         
   609 3 A CD        
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   630 8   C         
   675 8   C         
   724.1 1  B   (3/2,5/2)     464.1 1 
  499.0 2 
  574.1 2 
   36 7 
  100 16 
   43 7 



   260.2
   225.2
   149.96
(5/2)-
3/2-
3/2+
   815 8   CD (5/2-)        
   851 8   C         
   898 8   CD (1/2-)        
   956 8   CD (5/2-)        
   967 8   CD (3/2-)        
  1009 8   CD        
  1025 8   CD        
  1056 8   C         
  1070 8   CD        
  1091 8   CD        
  1156 8   CD        
  1184 10    D        
  1225 8   CD (5/2-)        
  1258 8   C         
  1272 10    D        
  1334 8   CD        
  1377 10    D        
  1441 8   CD        
  1479 8   CD        
  1553 8   C         
  1766 8   C         
  1792 8   C         
  1872 10    D        
  1912 10    D        
  1972 10    D        
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
  2138 10    D (13/2+)        

E(γ): From 229Th α decay and 225Fr β- decay.

I(γ): Relative photon intensity deexciting each level.

M(γ): From ce work in 229Th α decay and γ-x ray coincidence data in 225Fr β- decay.

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=1/2+ band, LARGELY INCLUDES 1/2[631] band.
     0.0 1/2+ 14.9 d 2 
% β- = 100
     
    25.41 2  5/2+ 0.88 ns 4     25.39 2 
  100
(E2)
     0.0
1/2+
    42.77 3  3/2+ < 3 ns    17.36 3 
   42.82 5 
  110 60 
  100 7 
(M1)
(M1+E2)
    25.41
     0.0
5/2+
1/2+
   100.50 6  (9/2)+      31.10 5 
   75.09 7 
  100 10 
   72 16 

E2
    69.36
    25.41
(7/2)-
5/2+
   111.60 5  7/2+      11.1 1 
   42.3 1 
   68.83 3 
   86.25 4 
 
    6.2 7 
   10.2 10 
  100 8 


E2
M1+E2
   100.50
    69.36
    42.77
    25.41
(9/2)+
(7/2)-
3/2+
5/2+
   226.9 3  (11/2+)     126.4 2 
  100
[M1,E2]
   100.50
(9/2)+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=1/2- band, LARGELY INCLUDES 1/2[501] band.
    31.56 3  3/2- 2.1 ns 5       
    55.16 6  (1/2-)      23.6
   55.11 3 
   46 4 
  100 16 
(M1+E2)

    31.56
     0.0
3/2-
1/2+
    69.36 6  (7/2)-      37.8 1 
   43.990 10 
    0.50 25 
  100 5 
(E2)
E1
    31.56
    25.41
3/2-
5/2+
   120.36 6  5/2-      50.99 4 
   77.63 5 
   94.92 8 
   39 10 
  100 14 
   30 7 



    69.36
    42.77
    25.41
(7/2)-
3/2+
5/2+
  ≈203.5 (9/2-)     134.2 1 
 
(M1)
    69.36
(7/2)-
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Kπ=3/2+ band, LARGELY INCLUDES 3/2[631] band.
   149.96 6  3/2+        
   179.75 2  5/2+      30.3 1 
   68.09 4 
  110.332 8 
  136.990 4 
  148.15 4 
  154.336 10 
  179.757 7 
   <3.5
    5.8 9 
   10.5 11 
  100 3 
   75 6 
   65 2 
   16.7 14 
(M1+E2)
M1+E2

M1(+E2)
E1
M1+E2
E2
   149.96
   111.60
    69.36
    42.77
    31.56
    25.41
     0.0
3/2+
7/2+
(7/2)-
3/2+
3/2-
5/2+
1/2+
   243.56 4  7/2+     123.193 13 
  131.926 5 
  142.962 5 
  174.82 2 
  200.807 16 
  218.154 17 
   37.3 18 
   83 3 
  100 3 
   <8
   17.0 8 
   46 6 

M1
M1


M1
   120.36
   111.60
   100.50
    69.36
    42.77
    25.41
5/2-
7/2+
(9/2)+
(7/2)-
3/2+
5/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Kπ=3/2- band.
   225.2 1  3/2-        
   260.2 1  (5/2)-      80.3 1 
  110.3 1 
  139.8 1 
  190.8 1 
  217.5 1 
  228.6 1 
  234.8 1 
   10.8 21 
   83 13 
   46 4 
  100 9 
   37 4 
   13.7 17 
   60 5 

(E1)
M1+E2
M1



   179.75
   149.96
   120.36
    69.36
    42.77
    31.56
    25.41
5/2+
3/2+
5/2-
(7/2)-
3/2+
3/2-
5/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - 5/2[633] band.
   236.25 2  5/2+        
   267.92 5  7/2+      31.57 9 
  117.99 15 
  147.64 5 
  156.409 9 
  167.45 5 
  225.149 19 
  242.4 2 
    5.7 9 
    1.1 4 
   17.2 18 
  100 3 
    4.3 9 
    6.0 9 
    7.9 13 


E1
M1


M1
   236.25
   149.96
   120.36
   111.60
   100.50
    42.77
    25.41
5/2+
3/2+
5/2-
7/2+
(9/2)+
3/2+
5/2+
   321.76 8  (9/2+)      49.75 8 
   53.75 20 
   78.3 2 
  101.1 2 
  142.0 1 
  210.15 8 
  221.22 5 
  252.43 3 
  296.2 2 
   11.1 11 
    5.8 16 
    4.2 11 
    9.5 16 
    5.8 16 
  100 22 
   12 4 
   49 7 
   ≈6









   272.15
   267.92
   243.56
   220.55
   179.75
   111.60
   100.50
    69.36
    25.41

7/2+
7/2+
(7/2+,9/2+)
5/2+
7/2+
(9/2)+
(7/2)-
5/2+
   390.0 4  (11/2+)     163.34 17 
  169.09 3 
  174.22 22 
 
 
 



   226.9
   220.55
   215.8
(11/2+)
(7/2+,9/2+)

   487 3  (13/2+)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - K=1/2
   898 8  (1/2-)        
   956 8  (5/2-)     
   967 8  (3/2-)     

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Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
    25.41 5/2+ 0.88 ns 4     25.39 2 (E2) 7377B(E2)(W.u.)=102 6, α=7377
    31.56 3/2- 2.1 ns 5     31.50 5 E1 2.44B(E1)(W.u.)=0.00081 20, α=2.44
    42.77 3/2+ < 3 ns    17.36 3 (M1) 140.6B(M1)(W.u.)>0.0064, α=140.6
3/2+ < 3 ns    42.82 5 (M1+E2)0.28 777B(E2)(W.u.)>2.0, B(M1)(W.u.)>0.00027, α=77 20
    55.16 (1/2-)      23.6(M1+E2)0.034 34241α=241 12
    69.36 (7/2)-      37.8 1 (E2) 1040α=1040
(7/2)-      43.990 10 E1 1.002α=1.002
   100.50 (9/2)+      75.09 7 E2 37.6α=37.6
   111.60 7/2+      68.83 3 E2 57.0α=57.0
7/2+      86.25 4 M1+E20.27 96.0α=6.0 7
   149.96 3/2+     107.108 8 M1+E20.3 313.1α=13.1 6
3/2+     124.55 5 (M1) 8.84α=8.84
3/2+     150.04 3 M1+E20.4 44.7α=4.7 5
   179.75 5/2+      30.3 1 (M1+E2) 223α223 AP
5/2+      68.09 4 M1+E20.32 1615α=15 5
5/2+     136.990 4 M1(+E2) 6.91α=6.91
5/2+     148.15 4 E1 0.1877α=0.1877
5/2+     154.336 10 M1+E20.4 44.4α=4.4 4
5/2+     179.757 7 E2 0.884α=0.884
   203.5 (9/2-)     134.2 1 (M1) 7.14α=7.14
   225.2 3/2-     169.9 1 M1+E2 2.4α=2.4 13
   226.9 (11/2+)     126.4 2 [M1,E2] 5.8α=5.8 23
   236.25 5/2+      56.518 5 M1+E20.11 1118.9α=18.9 16
5/2+      86.40 5 M1 5.03α=5.03
5/2+     124.65 5 (M1) 8.82α=8.82
5/2+     193.509 4 M1 2.53α=2.53
5/2+     204.690 5 (E1) 0.0861α=0.0861
5/2+     210.853 3 M1 1.98α=1.98
5/2+     236.249 8 E2 0.333α=0.333
E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
   243.56 7/2+     131.926 5 M1 7.49α=7.49
7/2+     142.962 5 M1 5.97α=5.97
7/2+     218.154 17 M1 1.81α=1.81
   260.2 (5/2)-     110.3 1 (E1) 0.385α=0.385
(5/2)-     139.8 1 M1+E2 4.6α=4.6 21
(5/2)-     190.8 1 M1 2.63α=2.63
   267.92 7/2+     147.64 5 E1 0.1893α=0.1893
7/2+     156.409 9 M1 4.62α=4.62
7/2+     242.4 2 M1 1.35α=1.35
   284.49 7/2+     172.926 18 M1 3.47α=3.47
7/2+     183.928 8 M1(+E2) 2.92α=2.92
   394.72 (3/2,5/2,7/2)+     158.42 12 M1(+E2)0.9 LT4.5α=4.5 14

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.01/2+ 14.9 d 2 
% β- = 100
μ=-0.7338 15
μ=-0.85 was calculated by 1988Le13 for octupole deformation of β3=0.15 and quadrupole deformation of β2=0.148. See also 1983Ra28, 1985Dz04 for calculated μ values.
E(level): μ=-0.85 was calculated by 1988Le13 for octupole deformation of β3=0.15 and quadrupole deformation of β2=0.148. See also 1983Ra28, 1985Dz04 for calculated μ values. Kπ=1/2+ band, LARGELY INCLUDES 1/2[631] band.
    25.415/2+ 0.88 ns 4  E(level): Kπ=1/2+ band, LARGELY INCLUDES 1/2[631] band.
    31.563/2- 2.1 ns 5  E(level): Kπ=1/2- band, LARGELY INCLUDES 1/2[501] band.
    42.773/2+ < 3 ns E(level): Kπ=1/2+ band, LARGELY INCLUDES 1/2[631] band.
    55.16(1/2-)   E(level): Kπ=1/2- band, LARGELY INCLUDES 1/2[501] band.
    69.36(7/2)-   E(level): Kπ=1/2- band, LARGELY INCLUDES 1/2[501] band.
   100.50(9/2)+   E(level): Kπ=1/2+ band, LARGELY INCLUDES 1/2[631] band.
   111.607/2+   E(level): Kπ=1/2+ band, LARGELY INCLUDES 1/2[631] band.
   120.365/2-   E(level): Kπ=1/2- band, LARGELY INCLUDES 1/2[501] band.
   149.963/2+   E(level): Kπ=3/2+ band, LARGELY INCLUDES 3/2[631] band.
   179.755/2+   E(level): Kπ=3/2+ band, LARGELY INCLUDES 3/2[631] band.
   203.5(9/2-)   E(level): Kπ=1/2- band, LARGELY INCLUDES 1/2[501] band.
   215.8   This level could possibly be the 13/2+ member of the K=1/2 g.s. band.
E(level): This level could possibly be the 13/2+ member of the K=1/2 g.s. band.
   225.23/2-   E(level): Kπ=3/2- band.
   226.9(11/2+)   E(level): Kπ=1/2+ band, LARGELY INCLUDES 1/2[631] band.
   236.255/2+   E(level): 5/2[633] band.
   243.567/2+   E(level): Kπ=3/2+ band, LARGELY INCLUDES 3/2[631] band.
   260.2(5/2)-   E(level): Kπ=3/2- band.
   267.927/2+   E(level): 5/2[633] band.
   272.15   Level could be the 9/2+ member of the K=3/2 band based at 149.96 keV.
E(level): Level could be the 9/2+ member of the K=3/2 band based at 149.96 keV.
   321.76(9/2+)   E(level): 5/2[633] band.
   390.0(11/2+)   E(level): 5/2[633] band.
   484   Level seen in (d,t) at 484-keV was possibly doublet (1983Ny01).
E(level): Level seen in (d,t) at 484-keV was possibly doublet (1983Ny01).
   487(13/2+)   E(level): 5/2[633] band.
   898(1/2-)   E(level): K=1/2.
E(level)Jπ(level)T1/2(level)Comments
   956(5/2-)   E(level): K=1/2.
   967(3/2-)   E(level): K=1/2.

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