ADOPTED LEVELS, GAMMAS for 229Pa

Authors: F.G. Kondev, J.K. Tuli and E. Browne |  Citation: Nucl. Data Sheets 208, 397 (2026) |  Cutoff date: 23-Oct-2025 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1314 keV 7S(n)= 7098 keV 5S(p)= 4163 keV 3Q(α)= 5835 keV 4
Reference: 2021WA16

References:
  A  229U ε decay  B  233Np α decay
  C  230Th(p,2nγ)  D  231Pa(p,t),231Pa(p,tγ)








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABCD 5/2+ 1.54 d 5 
% ε = 99.51 5
% α = 0.49 5
     
    12.211 25 A CD 3/2- 420 ns 30      12.211 25 S
  100
[E1]
     0.0
5/2+
    26.75 6 A  D (1/2)-        
    30.72 3 A C  (7/2+)        
    59.6 5   C  (9/2+)        
    68.6 3   CD 7/2-       56.4 3 
  100
E2
    12.211
3/2-
    95.9 5   C  (11/2+)        
   100.27 8 A  D (5/2)-        
   122.533 18 A C  (3/2)+      122.52 2 
  100
M1
     0.0
5/2+
   134.0 10    D (5/2-)        
   144.735 21 A C  (5/2)+      114.03 3 
   132.52 3 
   144.70 3 
  100 8 
   76 6 
   84 6 


M1
    30.72
    12.211
     0.0
(7/2+)
3/2-
5/2+
   178.5 4   CD 11/2-       82.6 3 
   109.9 2 
   118.9 3 
 
 
 

E2
E1
    95.9
    68.6
    59.6
(11/2+)
7/2-
(9/2+)
   210.988 23 A C  (3/2)-       66.24 3 
    88.43 10 
   110.9
   184.2 2 
   198.77 3 
   211.06 4 
   25.2 31 
   91 9 
 
    8.7 22 
  100 6 
   ≈5.7
E1
E1


M1

   144.735
   122.533
   100.27
    26.75
    12.211
     0.0
(5/2)+
(3/2)+
(5/2)-
(1/2)-
3/2-
5/2+
   220.5 5   CD (9/2)-       42.0 3 
 

   178.5
11/2-
   241.817 21 A C  (5/2)-      119.26 3 
   211.06 4 
   229.60 4 
   241.84 4 
   44.1 34 
  ≈54
   44 3 
  100 9 
E1


(E1)
   122.533
    30.72
    12.211
     0.0
(3/2)+
(7/2+)
3/2-
5/2+
   252.73 5 A  D (1/2)+      226.00 4 
   240.50 4 
   43 4 
  100 8 

(E1)
    26.75
    12.211
(1/2)-
3/2-
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   285.71 20 A  D (5/2)+      273.5 2 
  100

    12.211
3/2-
   304.87 8 A  D (3/2)+      204.60 3 
   278.0 1 
   292.8 1 
  100 8 
   65 6 
   23.1 31 



   100.27
    26.75
    12.211
(5/2)-
(1/2)-
3/2-
   338.6 4   CD 15/2-      160.1 2 
  100
E2
   178.5
11/2-
   377.8 4   CD (9/2)+      199.3 2 
  100
(E1)
   178.5
11/2-
   386.7 5   CD (13/2)-       48.1 3 
   208.2 5 
 
 


   338.6
   178.5
15/2-
11/2-
   392.9 6   C  (7/2)+      172.4 3 
  100
E1
   220.5
(9/2)-
   458.77 3 A    (3/2+)      216.90 4 
   247.80 4 
   314.0 1 
   336.23 6 
   446.60 8 
   458.82 10 
   42.2 33 
  100 6 
    7.1 13 
   14.3 13 
   10.4 13 
    3.2 7 

(E1)




   241.817
   210.988
   144.735
   122.533
    12.211
     0.0
(5/2)-
(3/2)-
(5/2)+
(3/2)+
3/2-
5/2+
   490.05 5 A    (5/2+)      279.1 1 
   345.2 1 
   477.89 10 
   490.07 10 
  100 10 
   19.1 24 
   11.9 24 
    7.6 19 




   210.988
   144.735
    12.211
     0.0
(3/2)-
(5/2)+
3/2-
5/2+
   521.1 5   C  (11/2)+      134.4 5 
   300.6 2 
 
 
E1

   386.7
   220.5
(13/2)-
(9/2)-
   522.1 4   CD (13/2)+      183.5 4 
   343.6 2 
 
 


   338.6
   178.5
15/2-
11/2-
   534.8 6   C       356.3 4 
  100

   178.5
11/2-
   545.8 5   CD 19/2-      207.2 2 
  100

   338.6
15/2-
   561.73 7 A    (3/2-)      350.80 10 
   549.50 10 
   40 4 
  100 10 


   210.988
    12.211
(3/2)-
3/2-
   594.7 10   CD (17/2)-      256.1 9 
  100

   338.6
15/2-
   614.3 6   C       435.8 4 
  100

   178.5
11/2-
   689.7 5   CD (15/2)+      303.0 2 
  100

   386.7
(13/2)-
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   712.8 5   CD (17/2)+      167.0 4 
   190.7 6 ?
   374.2 3 
 
 
 



   545.8
   522.1
   338.6
19/2-
(13/2)+
15/2-
   715.0 4    D (3/2-)        
   739.3 9    D (1/2-)        
   745.10 7 A    (3/2)      286.2 1 
   534.3 2 
   600.5 2 
   622.6 2 
   644.9 3 
   733.0 2 
    9.8 8 
    3.3 8 
    7.3 8 
   17.9 16 
    2.2 6 
  100 8 






   458.77
   210.988
   144.735
   122.533
   100.27
    12.211
(3/2+)
(3/2)-
(5/2)+
(3/2)+
(5/2)-
3/2-
   768.0 6    D (7/2-)        
   789.0 7    D        
   795.1 5   CD (23/2-)      249.3 3 
  100

   545.8
19/2-
   799.27 14 ?A    (3/2)      340.2 3 
   557.1 3 
   654.7 3 
   787.2 3 
   799.6 3 
   54 14 
   80 20 
   60 16 
   32 6 
  100 20 





   458.77
   241.817
   144.735
    12.211
     0.0
(3/2+)
(5/2)-
(5/2)+
3/2-
5/2+
   812.7 6    D (5/2-)        
   841.3 10   C  (21/2-)      295.5 9 
  100

   545.8
19/2-
   842.7 6    D 3/2-        
   858.8 9    D (1/2-)        
   877.2 7    D (7/2)-        
   884.14 18 ?A    (3/2+)      425.7 3 
   761.2 3 
   884.2 3 
  100 10 
   26 7 
   58 8 



   458.77
   122.533
     0.0
(3/2+)
(3/2)+
5/2+
   903.4 8    D (5/2-)        
   942.1 10    D (11/2)-        
   978.6 10    D 3/2-        
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
   991.8 9    D 3/2-        
  1006.5 9    D 3/2-        
  1024.8 15    D        
  1034.2 10    D        
  1058.54 18 ?A    (3/2-)      497.2 3 
   847.1 3 
  1058.6 3 
   34 9 
  100 22 
   67 11 



   561.73
   210.988
     0.0
(3/2-)
(3/2)-
5/2+
  1069.1 10    D        
  1076.1 13    D        
  1085.6 10    D        
  1117.0 10    D (3/2-)        
  1133.5 11    D        
  1146.5 12    D        
  1161.9 11    D        
  1173.2 10    D        
  1186.1 12    D        
  1196.7 12    D        
  1212.0 11    D        
  1220.7 11    D        
  1241.4 11    D        
  1264.9 11    D        
  1299.1 12    D        
  1314.4 12    D        
  1371.2 10    D 3/2-        
  1413.1 11    D 3/2-        
  1439.2 11    D (3/2-)        
  1469.4 12    D (3/2-)        
  1491.5 12    D        
  1522.4 13    D 3/2-        
  1535.9 13    D 3/2-        
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  1552.6 14    D (1/2)-        
  1582.0 13    D (7/2)-        
  1604.9 13    D 5/2-,1/2+        
  1629.0 13    D (5/2)+        
  1648.6 13    D (3/2)+        
  1665.2 13    D        
  1678.9 14    D (11/2)-        
  1698.4 14    D (9/2+)        
  1721.1 14    D (9/2-)        
  1743.5 14    D        
  1754.3 14    D        
  1768.9 14    D        
  1785.4 14    D        
  1844.8 15    D        

E(level): From a least-squares fit to Eγ. Reduced χ2=0.882, compared to the critical value of χ2=1.639

Back to top

Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=5/2+, π5/2[642] band
     0.0 5/2+ 1.54 d 5 
% ε = 99.51 5
% α = 0.49 5
     
    30.72 3  (7/2+)     
    59.6 5  (9/2+)        
    95.9 5  (11/2+)        
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=1/2-, π1/2[530] band (s=-1/2)
    12.211 25  3/2- 420 ns 30       
    68.6 3  7/2-       56.4 3 
  100
E2
    12.211
3/2-
   178.5 4  11/2-        
   338.6 4  15/2-        
   545.8 5  19/2-        
   795.1 5  (23/2-)      249.3 3 
  100

   545.8
19/2-
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Kπ=1/2-, π1/2[530] band (s=+1/2)
    26.75 6  (1/2)-        
   100.27 8  (5/2)-     
   220.5 5  (9/2)-        
   386.7 5  (13/2)-        
   594.7 10  (17/2)-        
   841.3 10  (21/2-)      295.5 9 
  100

   545.8
19/2-
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=+1/2)
   252.73 5  (1/2)+        
   285.71 20  (5/2)+      273.5 2 
  100

    12.211
3/2-
   377.8 4  (9/2)+        
   522.1 4  (13/2)+        
   712.8 5  (17/2)+        
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=-1/2)
   304.87 8  (3/2)+        
   392.9 6  (7/2)+      172.4 3 
  100
E1
   220.5
(9/2)-
   521.1 5  (11/2)+        
   689.7 5  (15/2)+        
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - Kπ=3/2+, π3/2[651] band
   122.533 18  (3/2)+        
   144.735 21  (5/2)+      114.03 3 
   132.52 3 
   144.70 3 
  100 8 
   76 6 
   84 6 


M1
    30.72
    12.211
     0.0
(7/2+)
3/2-
5/2+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 7 - Kπ=3/2-, π3/2[532] band
   210.988 23  (3/2)-        
   241.817 21  (5/2)-      119.26 3 
   211.06 4 
   229.60 4 
   241.84 4 
   44.1 34 
  ≈54
   44 3 
  100 9 
E1


(E1)
   122.533
    30.72
    12.211
     0.0
(3/2)+
(7/2+)
3/2-
5/2+
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 8 - Kπ=3/2+, π3/2[402] band
   458.77 3  (3/2+)        
   490.05 5  (5/2+)      279.1 1 
   345.2 1 
   477.89 10 
   490.07 10 
  100 10 
   19.1 24 
   11.9 24 
    7.6 19 




   210.988
   144.735
    12.211
     0.0
(3/2)-
(5/2)+
3/2-
5/2+

Back to top

Additional Gamma Data:













E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityConversion
Coefficient		Additional Data
    12.211 3/2- 420 ns 30      12.211 25 [E1]8.06B(E1)(W.u.)=2.61E-5 +21-18, α=8.06 12, α(M)=6.14 9, α(N)=1.575 23, α(O)=0.310 4, α(P)=0.0360 5, α(Q)=0.000744 11
    68.6 7/2-       56.4 3 E2187α=187 6, α(L)=136 4, α(M)=37.5 11, α(N)=10.11 30, α(O)=2.28 7, α(P)=0.367 11, α(Q)=0.000962 26
   122.533 (3/2)+      122.52 2 M111.38α=11.38 16, α(K)=9.04 13, α(L)=1.760 25, α(M)=0.425 6, α(N)=0.1139 16, α(O)=0.0273 4, α(P)=0.00522 7, α(Q)=0.000432 6
   144.735 (5/2)+      144.70 3 M17.10α=7.10 10, α(K)=5.65 8, α(L)=1.092 15, α(M)=0.263 4, α(N)=0.0706 10, α(O)=0.01695 24, α(P)=0.00324 5, α(Q)=0.000268 4
   210.988 (3/2)-       66.24 3 E10.359α=0.359 5, α(L)=0.270 4, α(M)=0.0664 9, α(N)=0.01748 25, α(O)=0.00397 6, α(P)=0.000657 9, α(Q)=2.84×10-5 4
(3/2)-       88.43 10 E10.1672α=0.1672 24, α(L)=0.1261 18, α(M)=0.0308 4, α(N)=0.00813 12, α(O)=0.001863 27, α(P)=0.000317 5, α(Q)=1.523×10-5 22
(3/2)-      198.77 3 M12.89α=2.89 4, α(K)=2.308 32, α(L)=0.443 6, α(M)=0.1068 15, α(N)=0.0286 4, α(O)=0.00687 10, α(P)=0.001313 18, α(Q)=0.0001084 15
   241.817 (5/2)-      241.84 4 (E1)0.0621α=0.0621 9, α(K)=0.0493 7, α(L)=0.00969 14, α(M)=0.002336 33, α(N)=0.000621 9, α(O)=0.0001457 20, α(P)=2.64×10-5 4, α(Q)=1.680E-6 24
   252.73 (1/2)+      240.50 4 (E1)0.0629α=0.0629 9, α(K)=0.0499 7, α(L)=0.00982 14, α(M)=0.002367 33, α(N)=0.000629 9, α(O)=0.0001477 21, α(P)=2.68×10-5 4, α(Q)=1.700E-6 24
   338.6 15/2-      160.1 2 E21.651α=1.651 25, α(K)=0.2163 30, α(L)=1.048 16, α(M)=0.288 4, α(N)=0.0778 12, α(O)=0.01765 27, α(P)=0.00290 4, α(Q)=2.138×10-5 31
   458.77 (3/2+)      247.80 4 (E1)0.0587α=0.0587 8, α(K)=0.0466 7, α(L)=0.00914 13, α(M)=0.002202 31, α(N)=0.000585 8, α(O)=0.0001374 19, α(P)=2.494×10-5 35, α(Q)=1.595E-6 22

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.05/2+ 1.54 d 5 
% ε = 99.51 5
% α = 0.49 5
E(level): Kπ=5/2+, π5/2[642] band.
    12.2113/2- 420 ns 30  E(level): Kπ=1/2-, π1/2[530] band (s=-1/2).
    26.75(1/2)-   E(level): Kπ=1/2-, π1/2[530] band (s=+1/2).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
    30.72(7/2+)   E(level): Kπ=5/2+, π5/2[642] band.
    59.6(9/2+)   E(level): Kπ=5/2+, π5/2[642] band.
    68.67/2-   E(level): Kπ=1/2-, π1/2[530] band (s=-1/2).
    95.9(11/2+)   E(level): Kπ=5/2+, π5/2[642] band.
   100.27(5/2)-   XREF: d(99.9).
E(level): Kπ=1/2-, π1/2[530] band (s=+1/2).
   122.533(3/2)+   E(level): Kπ=3/2+, π3/2[651] band.
   134.0(5/2-)   XREF: d(137.3).
E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   144.735(5/2)+   E(level): Kπ=3/2+, π3/2[651] band.
   178.511/2-   E(level): Kπ=1/2-, π1/2[530] band (s=-1/2).
   210.988(3/2)-   E(level): Kπ=3/2-, π3/2[532] band.
   220.5(9/2)-   E(level): Kπ=1/2-, π1/2[530] band (s=+1/2).
   241.817(5/2)-   E(level): Kπ=3/2-, π3/2[532] band.
   252.73(1/2)+   E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=+1/2).
   285.71(5/2)+   XREF: d(284.7).
E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=+1/2).
   304.87(3/2)+   XREF: d(303.6).
E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=-1/2).
   338.615/2-   E(level): Kπ=1/2-, π1/2[530] band (s=-1/2).
   377.8(9/2)+   E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=+1/2).
   386.7(13/2)-   XREF: d(389.5).
E(level): Kπ=1/2-, π1/2[530] band (s=+1/2).
   392.9(7/2)+   E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=-1/2).
   458.77(3/2+)   E(level): Kπ=3/2+, π3/2[402] band.
   490.05(5/2+)   E(level): Kπ=3/2+, π3/2[402] band.
   521.1(11/2)+   E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=-1/2).
E(level)Jπ(level)T1/2(level)Comments
   522.1(13/2)+   XREF: d(521.5).
E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=+1/2).
   545.819/2-   E(level): Kπ=1/2-, π1/2[530] band (s=-1/2).
   594.7(17/2)-   XREF: d(595.3).
E(level): Kπ=1/2-, π1/2[530] band (s=+1/2).
   689.7(15/2)+   E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=-1/2).
   712.8(17/2)+   E(level): Kπ=1/2+, mixed π1/2[400] and π1/2[660] band (s=+1/2).
   715.0(3/2-)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   739.3(1/2-)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   768.0(7/2-)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   789.0   E(level): From 231Pa(p,t).
   795.1(23/2-)   XREF: d(792.9).
E(level): Kπ=1/2-, π1/2[530] band (s=-1/2).
   812.7(5/2-)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   841.3(21/2-)   E(level): Kπ=1/2-, π1/2[530] band (s=+1/2).
   842.73/2-   E(level): From 231Pa(p,t).
   858.8(1/2-)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   877.2(7/2)-   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   903.4(5/2-)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   942.1(11/2)-   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
   978.63/2-   E(level): From 231Pa(p,t).
   991.83/2-   E(level): From 231Pa(p,t).
  1006.53/2-   E(level): From 231Pa(p,t).
  1024.8   L(p,t)=(2).
E(level): From 231Pa(p,t).
  1034.2   L(p,t)=2.
E(level): From 231Pa(p,t).
  1069.1   L(p,t)=2.
E(level): From 231Pa(p,t).
  1076.1   L(p,t)=2.
E(level): From 231Pa(p,t).
  1085.6   L(p,t)=2.
E(level): From 231Pa(p,t).
E(level)Jπ(level)T1/2(level)Comments
  1117.0(3/2-)   E(level): From 231Pa(p,t).
  1133.5   L(p,t)=(2).
E(level): From 231Pa(p,t).
  1146.5   L(p,t)=(2).
E(level): From 231Pa(p,t).
  1161.9   L(p,t)=2.
E(level): From 231Pa(p,t).
  1173.2   L(p,t)=2.
E(level): From 231Pa(p,t).
  1186.1   L(p,t)=(2).
E(level): From 231Pa(p,t).
  1196.7   L(p,t)=(2).
E(level): From 231Pa(p,t).
  1212.0   L(p,t)=2.
E(level): From 231Pa(p,t).
  1220.7   L(p,t)=2.
E(level): From 231Pa(p,t).
  1241.4   L(p,t)=(4).
E(level): From 231Pa(p,t).
  1264.9   L(p,t)=(2).
E(level): From 231Pa(p,t).
  1299.1   L(p,t)=(4).
E(level): From 231Pa(p,t).
  1314.4   L(p,t)=(4).
E(level): From 231Pa(p,t).
  1371.23/2-   E(level): From 231Pa(p,t).
  1413.13/2-   E(level): From 231Pa(p,t).
  1439.2(3/2-)   E(level): From 231Pa(p,t).
  1469.4(3/2-)   E(level): From 231Pa(p,t).
  1491.5   E(level): From 231Pa(p,t).
  1522.43/2-   E(level): From 231Pa(p,t).
  1535.93/2-   E(level): From 231Pa(p,t).
  1552.6(1/2)-   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
  1582.0(7/2)-   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
  1604.95/2-,1/2+   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
  1629.0(5/2)+   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
  1648.6(3/2)+   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
E(level)Jπ(level)T1/2(level)Comments
  1665.2   E(level): From 231Pa(p,t).
  1678.9(11/2)-   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
  1698.4(9/2+)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
  1721.1(9/2-)   E(level): From 231Pa(p,t).
Jπ(level): From the deduced L values and spectroscopic strengths in 231Pa(p,t) (1994Le22).
  1743.5   E(level): From 231Pa(p,t).
  1754.3   E(level): From 231Pa(p,t).
  1768.9   E(level): From 231Pa(p,t).
  1785.4   E(level): From 231Pa(p,t).
  1844.8   E(level): From 231Pa(p,t).

Back to top

Additional Gamma Comments:

E(level)E(gamma)Comments
    12.211    12.211E(γ): From level energy difference, based on a least-squares fit to the following pairs of γ rays from 2015Ah04 (229U ε+β+ decay). The validity of the γ-ray energy calibration in 2015Ah04 is supported by the very good agreement of the reported 221Ra γ ray energies from the same data (produced in consequent 229Pa-225Ac α decays) with adopted values (2007Ja05). Other: 11.6 keV 3 from 230Th(p,tγ) in 1998Le15, but no details about the energy calibration for such a low-energy γ ray are presented by the authors.
    68.6    56.4E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
M(γ): From 230Th(p,2nγ)
   122.533   122.52M(γ): α(L1+L2)exp=1.9 2, α(M1+M2)exp=0.6 1, α(N+O)exp=0.12 2; Ice(L1+L2)exp=5.0% 5, Ice(M1+M2)exp=1.6% 2, Ice(N+O)exp=0.30 4 (2015Ah04)
   144.735   144.70M(γ): α(K)exp=5.5 15; Ice(K)exp=2.3% 6 (2015Ah04)
   178.5    82.6E(γ): From 230Th(p,2nγ)
   109.9E(γ): From 230Th(p,2nγ)
M(γ): From ce-subshell ratios in 1991Gr13 [230Th(p,2nγ)]
   118.9E(γ): From 230Th(p,2nγ)
M(γ): From ce-ce coincidence data and intensity balances in 1994Le22 [230Th(p,2nγ)]
   210.988    66.24M(γ): α(L1+L2)exp<5; Ice(L1+L2)exp<3.0% (2015Ah04)
    88.43M(γ): α(L1+L2)exp<2; Ice(L1+L2)exp<3.0% (2015Ah04)
   198.77M(γ): α(K)exp=2.40 33, α(L1+L2)exp=0.43 9; Ice(K)exp=5.5% 7, Ice(L1+L2)exp=1.0% 2 (2015Ah04)
   220.5    42.0E(γ): From 230Th(p,2nγ)
   241.817   119.26M(γ): From ce-ce coincidence data and intensity balances in 1994Le22 [230Th(p,2nγ)]
   338.6   160.1E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
M(γ): From ce-subshell ratios in 1991Gr13 [230Th(p,2nγ)]
   377.8   199.3E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
M(γ): From ce-ce coincidence data and intensity balances in 1994Le22 [230Th(p,2nγ)]
   386.7    48.1E(γ): From 230Th(p,2nγ)
   208.2E(γ): From 230Th(p,2nγ)
   392.9   172.4E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
M(γ): From ce-ce coincidence data and intensity balances in 1994Le22 [230Th(p,2nγ)]
   521.1   134.4E(γ): From 230Th(p,2nγ)
M(γ): From ce-subshell ratios in 1991Gr13 [230Th(p,2nγ)]
   300.6E(γ): From 230Th(p,2nγ)
   522.1   183.5E(γ): From 230Th(p,2nγ)
   343.6E(γ): From 230Th(p,2nγ)
   534.8   356.3E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
   545.8   207.2E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
   594.7   256.1E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
   614.3   435.8E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
E(level)E(gamma)Comments
   689.7   303.0E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
   712.8   167.0E(γ): From 230Th(p,2nγ)
   190.7E(γ): From 230Th(p,2nγ)
   374.2E(γ): From 230Th(p,2nγ)
   795.1   249.3E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)
   841.3   295.5E(γ): From 230Th(p,2nγ)
I(γ): From 230Th(p,2nγ)

Back to top