ADOPTED LEVELS, GAMMAS for 240Pu

Authors: Balraj Singh, E. Browne |  Citation: Nucl. Data Sheets 109, 2439 (2008) |  Cutoff date: 31-Jul-2008 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1385 keV 14S(n)= 6534.20 keV 23S(p)= 6474.4 keV 11Q(α)= 5255.76 keV 14
Reference: 2012WA38

References:
  A  240Np β- decay (61.9 M)  B  240Np β- decay (7.22 M)
  C  240Am ε decay (50.8 H)  D  244Cm α decay (18.11 Y)
  E  238U(α,2nγ)  F  239Pu(n,γ) E=THERMAL
  G  239Pu(n,γ) E=0.3-58 EV  H  239Pu(n,γ) E=2 KEV
  I  239Pu(d,p)  J  239Pu(d,PF)
  K  240Pu(n,n’)  L  240Pu(d,d’)
  M  Coulomb Excitation  N  241Am(209Bi,210POG)
  O  242Pu(p,t) 

General Comments:

1989Ru07: Measured isotope shifts and hyperfine structure.

2004Be51: nuclear structure calculations, microscopic study of 240Pu structure using mean-field approach, discussed rotational bands, superdeformation, etc.

2008Ch15: structure calculations, octupole deformation

See ’239Pu(n,X):resonances’ dataset in the ENSDF database for 240Pu for energies and width parameters of 993 resonances up to 2.95 keV.

Levels: α second fission isomer of half-life 29 ns 4 was reported by 1970El03 in 239Pu(n,γ); but not confirmed in later studies of 1973Na03 and 1970Bu02

Gammas: α γ-ray cascade reported in Coulomb excitation (2007WaZV): 303.5-340.3-370.7-405.8-437.5-466.8 possibly belongs to 240Pu

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
       0.0ABCDEFGHI KLMNO 0+ 6561 y 7 
% α = 100
% SF = 5.7×10-6 2
     
      42.824 8 ABCDEFGHI KLMNO 2+ 167 ps 6      42.824 8 
   100
E2
       0.0
0+
     141.690 15 ABCDEF  I KLMNO 4+       98.860 13 
   100
E2
      42.824
2+
     294.319 24 ABCDE     KLMN  6+      152.630 20 
   100
E2
     141.690
4+
     497.37 20    DE      LMN  8+      203.1 2 
   100
(E2)
     294.319
6+
     597.34 4  BCD FGH  KL    1-      554.60 7 
   597.40 7 
   100
    61 2 
E1
E1
      42.824
       0.0
2+
0+
     648.86 4 ABCD F     LM   3-      507.20 10 
   606.10 7 
   100
    97 5 


     141.690
      42.824
4+
2+
     742.33 4 A C        L    5- < 2 ns    448.01 6 
   600.57 6 
    67 3 
   100 5 
[E1]
[E1]
     294.319
     141.690
6+
4+
     747.4 3     E       MN  10+      250.2 2 
   100
(E2)
     497.37
8+
     860.71 7  B D FGHI     O 0+      263.37 7 
   817.89 10 
   860.7
    89 2 
   100
 
[E1]
E2
E0
     597.34
      42.824
       0.0
1-
2+
0+
     878.1 4 ?            M   (7-)      583.7 4 ?
 

     294.319
6+
     900.32 4  BCD F HI K   O 2+      251.47 7 
   302.98 7 
   758.61 8 
   857.48 10 
   900.37 10 
    73 3 
    85 3 
   100 3 
    42 2 
    14 2 
[E1]
[E1]
E2
[M1,E2]
[E2]
     648.86
     597.34
     141.690
      42.824
       0.0
3-
1-
4+
2+
0+
     938.06 6  B D FGH   L    (1-)      289.21 10 
   340.70 10 
   895.30 10 
   938.02 10 
     1.4 3 
     5.0 5 
     5 1 
   100 4 




     648.86
     597.34
      42.824
       0.0
3-
1-
2+
0+
     958.85 6 ABC  FGH        (2-)      309.99 9 
   361.55 10 
   915.98 9 
     4.3 4 
     3.5 6 
   100 3 



     648.86
     597.34
      42.824
3-
1-
2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     992.4 5   C             4+      249.7 10 
   343.7 10 
   697.8
    41 6 
   100 10 
    71 16 
[E1]
[E1]

     742.33
     648.86
     294.319
5-
3-
6+
    1001.94 8 A C     I  L  O (3-)      959.1 1 
   100

      42.824
2+
    1030.55 4 A C  F          (3)+ 1.32 ns 15     382.1 10 ?
   888.85 5 
   987.79 6 
     0.072 7 
    34.2 7 
   100.0 10 
[E1]
E2
E2(+M1)
     648.86
     141.690
      42.824
3-
4+
2+
    1037.55 6 A               (4-)      295.20 10 
   388.70 10 
   895.80 10 
     3.2 4 
     6.6 5 
   100 5 



     742.33
     648.86
     141.690
5-
3-
4+
    1041.1 3     E       MN  12+      293.8 2 
   100
(E2)
     747.4
10+
    1056.8 3             M   (9-)      178.4 4 ?
   309.4 3 
   559.2 3 
 
    36 36 
   100 71 

D
D
     878.1
     747.4
     497.37
(7-)
10+
8+
    1076.22 9 A C        L    (4+)      934.50 10 
  1033.50 20 
   100 12 
    40 4 


     141.690
      42.824
4+
2+
    1089.45 10  B     HI     O 0+     1046.62 10 
   100

      42.824
2+
    1115.53 6 A          L    (5-)      466.70 10 
   821.20 10 
   973.90 10 
     4.5 4 
     4.5 4 
   100 5 



     648.86
     294.319
     141.690
3-
6+
4+
    1130.95 9  B     H        (2+)      989.20 10 
  1088.30 20 
  1131.00 20 
   100 7 
    39 4 
    75 6 



     141.690
      42.824
       0.0
4+
2+
0+
    1136.97 13  BC    HI  L  O (2+)     1094.20 20 
  1137.0 4 
   100 15 
    67 10 


      42.824
       0.0
2+
0+
    1138.3 4 ?            M   (6+)      145.8 4 ?
 

     992.4
4+
    1161.53 7 A               (6-)      419.20 10 
   867.20 10 
     9.8 8 
   100 6 


     742.33
     294.319
5-
6+
    1177.63 8 A C             (3+)      139.90 10 
   147.2 1 
   175.40 10 ?
  1036.1 3 
  1135.1 3 
 
 
 
    33 4 
   100 6 





    1037.55
    1030.55
    1001.94
     141.690
      42.824
(4-)
(3)+
(3-)
4+
2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    1180.5 4        H        (2+)        
    1199 2            L           
    1222.99 13  BC    HI  L  O (2+)     1180.20 20 
  1223.00 20 
   100 8 
    80 12 


      42.824
       0.0
2+
0+
    1232.46 10 A C     I     O (4+)      938.20 10 
  1090.50 20 
  1190.0 10 
   100 17 
    44 9 
     7 4 



     294.319
     141.690
      42.824
6+
4+
2+
    1240.8 3  B   FGH        (2-)     1198.0 3 
   100

      42.824
2+
    1262.08 24   C             (3+)     1120.3 4 
  1219.3 3 
    31 3 
   100 6 


     141.690
      42.824
4+
2+
    1277.6 3             M   (11-)      220.7 3 
   236.6 3 
   530.1 3 
    22 11 
    39 22 
   100 50 
(E2)

D
    1056.8
    1041.1
     747.4
(9-)
12+
10+
    1282 2            L    (3-)        
    1308.74 5 A               (5-) 165 ns 10     147.20 10 
   193.30 10 
   271.30 10 
   306.80 10 
   566.34 6 
  1014.40 10 
  1167.10 10 
     4.0 3 
    22.1 11 
    22.5 11 
     1.6 2 
   100 5 
     0.83 22 
    17.8 11 
(M1,E2)
(M1,E2)
(M1,E2)
(E2)
(M1,E2)


    1161.53
    1115.53
    1037.55
    1001.94
     742.33
     294.319
     141.690
(6-)
(5-)
(4-)
(3-)
5-
6+
4+
    1321.13 10 ? B              (1,2+)     1321.10 10 ?
   100

       0.0
0+
    1323.4 4 ?            M   (8+)      185.0 3 ?
   445.2 4 ?
   100 67 
 


    1138.3
     878.1
(6+)
(7-)
    1337.02 24   C             (2+,3,4+)     1195.5 4 
  1294.1 3 
   100 19 
    35 4 


     141.690
      42.824
4+
2+
    1374.8 4     E       MN  14+      333.7 3 
   100
(E2)
    1041.1
12+
    1379 4            L           
    1407 3            L           
    1410.75 11  B   F H        0(-)      813.41 10 
   100

     597.34
1-
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    1413.0       H        (+)        
    1438.45 8  B    GH        2(-)      789.59 10 
   841.11 10 
  1438.5
   100 17 
    83 9 
    <0.6



     648.86
     597.34
       0.0
3-
1-
0+
    1488.17 7  B   F H        (1,2+)     1445.30 10 
  1488.20 10 
   100 3 
    53 3 


      42.824
       0.0
2+
0+
    1525.86 8  B     H        (0+)      928.55 10 
  1483.00 10 
   100 13 
    18 3 


     597.34
      42.824
1-
2+
    1539.67 6  B     H        (1-)      580.70 20 
   890.60 20 
   942.39 10 
  1496.90 10 
  1539.62 9 
     0.53 15 
     1.3 2 
     7.2 7 
   100 2 
    63.2 15 





     958.85
     648.86
     597.34
      42.824
       0.0
(2-)
3-
1-
2+
0+
    1539.8 4             M   (13-)      165.0 3 
   262.1 3 
   498.7 3 
     7 7 
    75 36 
   100 64 

(Q)
D
    1374.8
    1277.6
    1041.1
14+
(11-)
12+
    1557.0 3             M   (10+)      233.5 3 
   279.6 4 ?
   500.3 3 
    69 46 
 
   100 65 


D
    1323.4
    1277.6
    1056.8
(8+)
(11-)
(9-)
    1558.87 5  B     H        (2+)      910.10 10 
   961.62 10 
  1417.20 10 
  1515.90 10 
  1558.80 10 
   100 14 
    93 5 
    16 3 
    11 4 
     4.3 14 





     648.86
     597.34
     141.690
      42.824
       0.0
3-
1-
4+
2+
0+
    1574           L           
    1580 5               O        
    1607.72 13  B     H   L    (1-)      518.2 3 
   959.0 2 
  1607.60 20 
    11 4 
    13 4 
   100 9 



    1089.45
     648.86
       0.0
0+
3-
0+
    1626.77 15  B     H        (1,2+)     1584.10 20 
  1626.60 20 
   100 12 
    29 6 


      42.824
       0.0
2+
0+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    1633.37 7  B     H        (1,2+)      496.7 3 
  1036.5 3 
  1590.50 10 
  1633.33 10 
     6.5 13 
     1.9 13 
    63 3 
   100 3 




    1136.97
     597.34
      42.824
       0.0
(2+)
1-
2+
0+
    1641 5            L           
    1675 2            L           
    1710.43 8  B     H        (2+)      573.40 20 
  1061.60 20 
  1113.20 20 
  1568.60 20 
  1667.60 10 
  1711.0 10 
    28 7 
   100 24 
    62 10 
    21 3 
    66 10 
     7 4 






    1136.97
     648.86
     597.34
     141.690
      42.824
       0.0
(2+)
3-
1-
4+
2+
0+
    1745.7 4             MN  16+      371.0 3 
   100
(Q)
    1374.8
14+
    1752 3            L           
    1775.27 15  B   F H        (1-)     1732.40 20 
  1775.30 20 
    67 34 
   100 33 


      42.824
       0.0
2+
0+
    1784 3            L           
    1796.34 13  B     H        (1,2+)      475.0 3 
   573.40 20 
   837.60 20 
  1796.2 3 
   100 27 
    73 18 
    73 27 
    27 9 




    1321.13
    1222.99
     958.85
       0.0
(1,2+)
(2+)
(2-)
0+
    1808.02 13  B              (1-,2+)     1159.20 20 
  1210.5 5 
  1765.20 20 
  1807.9 4 
    40 13 
   100 30 
    47 7 
    13 7 




     648.86
     597.34
      42.824
       0.0
3-
1-
2+
0+
    1830.3 4             M   (12+)      273.2 3 
   290.6 4 ?
   552.7 4 
   100 55 
 
    90 48 
Q

D
    1557.0
    1539.8
    1277.6
(10+)
(13-)
(11-)
    1841.8 4             M   (15-)      302.1 3 
   467.1 3 
   100 44 
    65 37 
Q

    1539.8
    1374.8
(13-)
14+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    1861 3            L           
    1881.1     F          (0,1,2)        
    1902 3            L           
    1917.8 3  B     H   L    (1-)     1874.9 3 
  1918.0 10 
   100 8 
     7 3 


      42.824
       0.0
2+
0+
    1954.51 8  B              (2+)     1305.80 20 
  1357.20 20 
  1812.80 10 
  1911.4 3 
   100 26 
    57 13 
    22 9 
    61 4 




     648.86
     597.34
     141.690
      42.824
3-
1-
4+
2+
    1996.41 17  B              (1,2+)     1398.5 5 
  1953.60 20 
  1996.7 4 
   100 40 
    46 10 
    20 8 



     597.34
      42.824
       0.0
1-
2+
0+
    2117.5 10  B              (1,2+)     2074.80 20 ?
  2117.5 10 
   100 16 
    23 13 


      42.824
       0.0
2+
0+
    2127.4       H        (-)        
    2136.8 4             M   (14+)      295.0 3 ?
   306.5 3 
   597.1 3 
    32 19 
   100 56 
    78 46 

Q
D
    1841.8
    1830.3
    1539.8
(15-)
(12+)
(13-)
    2151.6 5             MN  18+      405.9 3 
   100
(Q)
    1745.7
16+
    2182.6 4             M   (17-)      340.7 3 
   436.8 3 
   100 89 
    34 42 
(Q)

    1841.8
    1745.7
(15-)
16+
    2475.1 4             M   (16+)      292.6 4 ?
   338.2 3 
   633.3 4 
 
   100 92 
    31 31 

Q
D
    2182.6
    2136.8
    1841.8
(17-)
(14+)
(15-)
    2560.5 5             M   (19-)      377.9 3 
   408.9 3 
   100 72 
    21 5 
(Q)

    2182.6
    2151.6
(17-)
18+
    2590.2 5             MN  20+      438.6 3 
   100
(E2)
    2151.6
18+
    2837.1 5             M   (18+)      362.0 3 
   654.6 3 
   100 71 
    33 26 
Q

    2475.1
    2182.6
(16+)
(17-)
    2973.8 5             M   (21-)      383.6 3 
   413.3 3 
    21 5 
   100 62 

(Q)
    2590.2
    2560.5
20+
(19-)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    3059.8 6             MN  22+      469.6 3 
   100
(E2)
    2590.2
20+
    3218.3 5             M   (20+)      381.2 3 
   657.8 3 
   100 80 
    18 12 
Q

    2837.1
    2560.5
(18+)
(19-)
    3421.1 6             M   (23-)      361.3 3 
   447.3 3 
    21 7 
   100 38 

(Q)
    3059.8
    2973.8
22+
(21-)
    3559.0 6             MN  24+      499.2 3 
   100
(E2)
    3059.8
22+
    3626.6 6             M   (22+)      408.3 4 
   652.8 4 
 
   100 50 


    3218.3
    2973.8
(20+)
(21-)
    3900.6 6             M   (25-)      341.6 3 
   479.5 3 
    32 14 
   100 68 

Q
    3559.0
    3421.1
24+
(23-)
    4063.5 8             M   (24+)      436.9 5 
 

    3626.6
(22+)
    4086.3 6             M   26+      185.7 3 
   527.2 3 
    11 6 
   100 17 

(Q)
    3900.6
    3559.0
(25-)
24+
    4410.8 6             M   (27-)      324.5 3 
   510.2 3 
 
   100 74 

Q
    4086.3
    3900.6
26+
(25-)
    4530.9 9             M   (26+)      467.4 5 
 

    4063.5
(24+)
    4639.4 7             M   28+      228.6 4 
   553.1 3 
    27 15 
   100 35 


    4410.8
    4086.3
(27-)
26+
    4950.0 7             M   (29-)      310.6 4 ?
   539.2 3 
 
   100 69 


    4639.4
    4410.8
28+
(27-)
    5030.0 10             M   (28+)      499.1 5 
 

    4530.9
(26+)
    5220.3 7             M   30+      270.3 4 
   580.9 3 
 
   100 37 


    4950.0
    4639.4
(29-)
28+
    5512.2 8             M   (31-)      562.2 3 
   100

    4950.0
(29-)
    5559.2 12             M   (30+)      529.2 5 
 

    5030.0
(28+)
    5819.3 8             M   32+      599.0 3 
   100

    5220.3
30+
    6096.3 9 ?            M   (33-)      584.1 4 ?
 

    5512.2
(31-)
       X    E           (0+) 3.6 ns 2 
% SF > 0
     
      20.1+X    E           (2+)       20.1S
 
[E2]
       X
(0+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
      66.8+X    E           (4+)       46.72 9 
   100
(E2)
      20.1+X
(2+)
     139.9+X    E           (6+)       73.12 12 
   100
(E2)
      66.8+X
(4+)
     239.2+X    E           (8+)       99.35 13 
   100
(E2)
     139.9+X
(6+)
     364.5+X?    E           (10+)      126?
 

     239.2+X
(8+)
     516.9+X?    E           (12+)        
     554.7+X    E           (1-)      534.6
   554.7
   100
  <750


      20.1+X
       X
(2+)
(0+)
     589.7+X    E           (3-)      569.6
   100

      20.1+X
(2+)
     769.9+X 10     E           (0+)      769.9 10 
 
(E0)
       X
(0+)
     785.1+X 11     E           (2+)      765.0 11 
   100
(E0)
      20.1+X
(2+)
     806.2+X 1     E           (2-)      216.5 5 
   251.5 2 
   786.1 1 
     1.9
     3.6
   100.0 25 


E1
     589.7+X
     554.7+X
      20.1+X
(3-)
(1-)
(2+)
     825.0+X 11     E           (4+)      758.2 11 
   100
(E0)
      66.8+X
(4+)
     825.6+X 2     E           (3-)       19.4S
   758.9 2 
   805.4 2 
 
   <70
   100 13 



     806.2+X
      66.8+X
      20.1+X
(2-)
(4+)
(2+)
     836.0+X 5     E           (1-)      816 1 
   836 1 
   100 18 
    29 17 


      20.1+X
       X
(2+)
(0+)
     846.8+X 3     E           (2-)      826.7 3 
   100

      20.1+X
(2+)
     851.1+X 4     E           (4-)       25.5S
    44.8
 
 

(E2)
     825.6+X
     806.2+X
(3-)
(2-)
     866.0+X 10     E           (3-)      799 1 
   846 1 
   100 22 
    67 33 


      66.8+X
      20.1+X
(4+)
(2+)
     882.8+X 6     E           (5-)       31.7
    57.2
 
 
(E2)
(E2)
     851.1+X
     825.6+X
(4-)
(3-)
     891.2+X 3     E           (4-)      824.4 3 
   100

      66.8+X
(4+)
     892.4+X 12     E           (6+)      752.5 12 
   100
(E0)
     139.9+X
(6+)
     918.8+X 3     E           (5-)      778.9 3 
   852.0 5 
   100 25 
    42 17 


     139.9+X
      66.8+X
(6+)
(4+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     920.7+X 12     E           (6-)       37.9S
    69.6S
 
 


     882.8+X
     851.1+X
(5-)
(4-)
     936.4+X?    E           (1-)      100.4?
   936.4?
  <100
   <10


     836.0+X
       X
(1-)
(0+)
     952.5+X?    E           (2-)      932.4?
   100

      20.1+X
(2+)
     960.7+X 2     E           (6-)      820.8 2 
   100

     139.9+X
(6+)
     966.5+X 13     E           (7-)       45.8S
    83.7S
 
 


     920.7+X
     882.8+X
(6-)
(5-)
     970.6+X?    E           (3-)      904.1?
   100

      66.8+X
(4+)
     986.8+X 13     E           (8+)      747.6 13 
   100
(E0)
     239.2+X
(8+)
     998.3+X 7     E           (7-)      758.9 2 
   858.7 3 
  <320
   100 40 


     239.2+X
     139.9+X
(8+)
(6+)
    1012.2+X?    E           (4-)      945.4?
   100

      66.8+X
(4+)
  1019+X?    E           (8-)        
    1044.0+X?    E           (5-)      904.1?
   100

     139.9+X
(6+)
    1054.9+X 5     E           (8-)      815.7 3 
   100

     239.2+X
(8+)
  1078+X?    E           (9-)        
  1104+X?    E           (9-)        
    1104.2+X?    E           (10+)      739.6 14 
   100
(E0)
     364.5+X
(10+)
    1109.0+X?    E           (6-)      969.1?
   100

     139.9+X
(6+)
    1161.5+X?    E           (7-)      922.3?
   100

     239.2+X
(8+)
  1172+X?    E           (10-)        
    1230.4+X?    E           (8-)      991.2?
   100

     239.2+X
(8+)
  1232+X?    E           (11-)      714.7 3 ?
   100

     516.9+X
(12+)
    1246.5+X?    E           (1-)      410.5?
  1226.5?
  1246.5?
 
 
 
(E0)


     836.0+X
      20.1+X
       X
(1-)
(2+)
(0+)
    1261.0+X?    E           (2-)      414.2?
   425.5?
  1241.0?
 
   100
    25
(E0)


     846.8+X
     836.0+X
      20.1+X
(2-)
(1-)
(2+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    1287.0+X?    E           (3-)      420?
   440.3?
  1220.0?
 
    50
   100
(E0)


     866.0+X
     846.8+X
      66.8+X
(3-)
(2-)
(4+)
    1300.9+X?    E           (9-)      936.4?
   100

     364.5+X
(10+)
    1322.0+X?    E           (4-)      403?
   454.8?
  1255?
    17
    67
   100



     918.8+X
     866.0+X
      66.8+X
(5-)
(3-)
(4+)
    1344.5+X?    E           (1-)       98?
   408.1?
   508.4
   538 1 
  1324.5?
 
 
   100
  <300
   <16

(E0)
(E0)


    1246.5+X
     936.4+X
     836.0+X
     806.2+X
      20.1+X
(1-)
(1-)
(1-)
(2-)
(2+)
    1360.9+X 2     E           (2-)      408.4
   514.8 15 
   525
   535.2 2 
   554.8 2 
  1341
 
    67
    42
   100 25 
  <225
  <115
(E0)
(E0)


(E0)

     952.5+X
     846.8+X
     836.0+X
     825.6+X
     806.2+X
      20.1+X
(2-)
(2-)
(1-)
(3-)
(2-)
(2+)
    1366.5+X?    E           (6-)      406.4?
  1226.5?
   100
  <500


     960.7+X
     139.9+X
(6-)
(6+)
    1382.9+X?    E           (10-)     1018.4?
   100

     364.5+X
(10+)
    1386.6+X 3     E           (3-)      415.7?
   520.4 14 
   535.5 3 
   561.0 2 
  1319.9
 
   <44
    61 17 
   100 17 
    26
(E0)
(E0)

(E0)

     970.6+X
     866.0+X
     851.1+X
     825.6+X
      66.8+X
(3-)
(3-)
(4-)
(3-)
(4+)
    1421.0+X?    E           (6-)     1281?
   100

     139.9+X
(6+)
    1421.4+X 6     E           (4-)      409.2?
   529.0 12 
   538.6 2 
   570.3 4 
  1355
 
 
   <43
   100 14 
    23
(E0)
(E0)

(E0)

    1012.2+X
     891.2+X
     882.8+X
     851.1+X
      66.8+X
(4-)
(4-)
(5-)
(4-)
(4+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    1461.8+X?    E           (11-)      944.9?
   100

     516.9+X
(12+)
    1465.7+X 6     E           (5-)      543.6 1 
   545 1 
   582.9 2 
  1324.5?
     2
    64
   100 27 
   <22
(E0)

(E0)

     918.8+X
     920.7+X
     882.8+X
     139.9+X
(5-)
(6-)
(5-)
(6+)
    1485.5+X?    E           (7-)     1246.5?
   100

     239.2+X
(8+)
    1518.7+X 13     E           (6-)      409.7?
   554.3 4 
   556.5 1 
   598.0 5 
  1379.5
 
  <340
     2
   100
    17
(E0)

(E0)
(E0)

    1109.0+X
     966.5+X
     960.7+X
     920.7+X
     139.9+X
(6-)
(7-)
(6-)
(6-)
(6+)
    1559.0+X?    E           (8-)     1320?
   100

     239.2+X
(8+)
    1580.5+X 14     E           (7-)      418.6?
   581.8 12 
   614.0 5 
  1341.3?
 
 
   100
  <115
(E0)
(E0)
(E0)

    1161.5+X
     998.3+X
     966.5+X
     239.2+X
(7-)
(7-)
(7-)
(8+)
    1641.5+X?    E           (9-)     1276?
   100

     364.5+X
(10+)
    1654.7+X?    E           (8-)      595.1 18 ?
   600.0?
   636?
  1414.3?
 
 
   100
    40
(E0)
(E0)


    1054.9+X
    1054.9+X
  1019+X
     239.2+X
(8-)
(8-)
(8-)
(8+)
  1732+X?    E           (9-)      628.3 13 ?
   655?
  1369?
 
   100
    30
(E0)


  1104+X
  1078+X
     364.5+X
(9-)
(9-)
(10+)
    1733.5+X?    E           (10-)     1369?
   100

     364.5+X
(10+)
  1816+X?    E           (10-)      644.9 14 ?
  1454.0?
 
 
(E0)

  1172+X
     364.5+X
(10-)
(10+)
    1835.0+X?    E           (11-)     1318?
   100

     516.9+X
(12+)
    1910.0+X?    E           (11-)      678.0?
  1393?
 
 
(E0)

  1232+X
     516.9+X
(11-)
(12+)
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    2011.0+X?    E           (12-)     1494.0?
   100

     516.9+X
(12+)
  2184+X         J      (0+)        
  2276+X         J      (0+)        
  2375+X         J      (0+)        
  2435+X         J      (0+)        
  2453+X         J      (0+)        
  2483+X         J      (0+)        
  2800+X         J      (0+)        

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

Jπ(level): For Kπ=0+ ground-state, Kπ=0- octupole band and Kπ=0+ band based on 860.7 level, band associations are also used as arguments for Jπ assignments in addition to other arguments as listed. For SD bands, the assignments are as proposed by 2001Ga05 and 2000Pa40, with parentheses added by the evaluators due to lack of firm arguments for these assignments

E(γ): From 240Np β- decay (7.22 min), unless otherwise noted. For γ rays from levels in the second minimum, all values are from (α,2nγ)

I(γ): Relative photon intensity, normalized to 100 for the strongest γ deexciting each level.

M(γ): For transitions from levels in the second-potential well, E0 multipolarities are mixed with M1 and E2 components, except for the 769.9 transition from 0+ to 0+, which has to be E0.

Back to top

Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Kπ=0+ GS band.
       0.0 0+ 6561 y 7 
% α = 100
% SF = 5.7×10-6 2
     
      42.824 8  2+ 167 ps 6      42.824 8 
   100
E2
       0.0
0+
     141.690 15  4+       98.860 13 
   100
E2
      42.824
2+
     294.319 24  6+      152.630 20 
   100
E2
     141.690
4+
     497.37 20  8+      203.1 2 
   100
(E2)
     294.319
6+
     747.4 3  10+      250.2 2 
   100
(E2)
     497.37
8+
    1041.1 3  12+      293.8 2 
   100
(E2)
     747.4
10+
    1374.8 4  14+      333.7 3 
   100
(E2)
    1041.1
12+
    1745.7 4  16+      371.0 3 
   100
(Q)
    1374.8
14+
    2151.6 5  18+      405.9 3 
   100
(Q)
    1745.7
16+
    2590.2 5  20+      438.6 3 
   100
(E2)
    2151.6
18+
    3059.8 6  22+      469.6 3 
   100
(E2)
    2590.2
20+
    3559.0 6  24+      499.2 3 
   100
(E2)
    3059.8
22+
    4086.3 6  26+      185.7 3 
   527.2 3 
    11 6 
   100 17 

(Q)
    3900.6
    3559.0
(25-)
24+
    4639.4 7  28+      228.6 4 
   553.1 3 
    27 15 
   100 35 


    4410.8
    4086.3
(27-)
26+
    5220.3 7  30+      270.3 4 
   580.9 3 
 
   100 37 


    4950.0
    4639.4
(29-)
28+
    5819.3 8  32+      599.0 3 
   100

    5220.3
30+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - Kπ=0- octupole band.
     597.34 4  1-        
     648.86 4  3-      507.20 10 
   606.10 7 
   100
    97 5 


     141.690
      42.824
4+
2+
     742.33 4  5- < 2 ns    448.01 6 
   600.57 6 
    67 3 
   100 5 
[E1]
[E1]
     294.319
     141.690
6+
4+
     878.1 4  (7-)      583.7 4 ?
 

     294.319
6+
    1056.8 3  (9-)      178.4 4 ?
   309.4 3 
   559.2 3 
 
    36 36 
   100 71 

D
D
     878.1
     747.4
     497.37
(7-)
10+
8+
    1277.6 3  (11-)      220.7 3 
   236.6 3 
   530.1 3 
    22 11 
    39 22 
   100 50 
(E2)

D
    1056.8
    1041.1
     747.4
(9-)
12+
10+
    1539.8 4  (13-)      165.0 3 
   262.1 3 
   498.7 3 
     7 7 
    75 36 
   100 64 

(Q)
D
    1374.8
    1277.6
    1041.1
14+
(11-)
12+
    1841.8 4  (15-)      302.1 3 
   467.1 3 
   100 44 
    65 37 
Q

    1539.8
    1374.8
(13-)
14+
    2182.6 4  (17-)      340.7 3 
   436.8 3 
   100 89 
    34 42 
(Q)

    1841.8
    1745.7
(15-)
16+
    2560.5 5  (19-)      377.9 3 
   408.9 3 
   100 72 
    21 5 
(Q)

    2182.6
    2151.6
(17-)
18+
    2973.8 5  (21-)      383.6 3 
   413.3 3 
    21 5 
   100 62 

(Q)
    2590.2
    2560.5
20+
(19-)
    3421.1 6  (23-)      361.3 3 
   447.3 3 
    21 7 
   100 38 

(Q)
    3059.8
    2973.8
22+
(21-)
    3900.6 6  (25-)      341.6 3 
   479.5 3 
    32 14 
   100 68 

Q
    3559.0
    3421.1
24+
(23-)
    4410.8 6  (27-)      324.5 3 
   510.2 3 
 
   100 74 

Q
    4086.3
    3900.6
26+
(25-)
    4950.0 7  (29-)      310.6 4 ?
   539.2 3 
 
   100 69 


    4639.4
    4410.8
28+
(27-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
    5512.2 8  (31-)      562.2 3 
   100

    4950.0
(29-)
    6096.3 9  (33-)      584.1 4 ?
 

    5512.2
(31-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - Kπ=0+ band.
     860.71 7  0+        
     900.32 4  2+      251.47 7 
   302.98 7 
   758.61 8 
   857.48 10 
   900.37 10 
    73 3 
    85 3 
   100 3 
    42 2 
    14 2 
[E1]
[E1]
E2
[M1,E2]
[E2]
     648.86
     597.34
     141.690
      42.824
       0.0
3-
1-
4+
2+
0+
     992.4 5  4+      249.7 10 
   343.7 10 
   697.8
    41 6 
   100 10 
    71 16 
[E1]
[E1]

     742.33
     648.86
     294.319
5-
3-
6+
    1138.3 4  (6+)      145.8 4 ?
 

     992.4
4+
    1323.4 4  (8+)      185.0 3 ?
   445.2 4 ?
   100 67 
 


    1138.3
     878.1
(6+)
(7-)
    1557.0 3  (10+)      233.5 3 
   279.6 4 ?
   500.3 3 
    69 46 
 
   100 65 


D
    1323.4
    1277.6
    1056.8
(8+)
(11-)
(9-)
    1830.3 4  (12+)      273.2 3 
   290.6 4 ?
   552.7 4 
   100 55 
 
    90 48 
Q

D
    1557.0
    1539.8
    1277.6
(10+)
(13-)
(11-)
    2136.8 4  (14+)      295.0 3 ?
   306.5 3 
   597.1 3 
    32 19 
   100 56 
    78 46 

Q
D
    1841.8
    1830.3
    1539.8
(15-)
(12+)
(13-)
    2475.1 4  (16+)      292.6 4 ?
   338.2 3 
   633.3 4 
 
   100 92 
    31 31 

Q
D
    2182.6
    2136.8
    1841.8
(17-)
(14+)
(15-)
    2837.1 5  (18+)      362.0 3 
   654.6 3 
   100 71 
    33 26 
Q

    2475.1
    2182.6
(16+)
(17-)
    3218.3 5  (20+)      381.2 3 
   657.8 3 
   100 80 
    18 12 
Q

    2837.1
    2560.5
(18+)
(19-)
    3626.6 6  (22+)      408.3 4 
   652.8 4 
 
   100 50 


    3218.3
    2973.8
(20+)
(21-)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
    4063.5 8  (24+)      436.9 5 
 

    3626.6
(22+)
    4530.9 9  (26+)      467.4 5 
 

    4063.5
(24+)
    5030.0 10  (28+)      499.1 5 
 

    4530.9
(26+)
    5559.2 12  (30+)      529.2 5 
 

    5030.0
(28+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - Kπ=1- band.
     938.06 6  (1-)        
     958.85 6  (2-)      309.99 9 
   361.55 10 
   915.98 9 
     4.3 4 
     3.5 6 
   100 3 



     648.86
     597.34
      42.824
3-
1-
2+
    1001.94 8  (3-)      959.1 1 
   100

      42.824
2+
    1037.55 6  (4-)      295.20 10 
   388.70 10 
   895.80 10 
     3.2 4 
     6.6 5 
   100 5 



     742.33
     648.86
     141.690
5-
3-
4+
    1115.53 6  (5-)      466.70 10 
   821.20 10 
   973.90 10 
     4.5 4 
     4.5 4 
   100 5 



     648.86
     294.319
     141.690
3-
6+
4+
    1161.53 7  (6-)      419.20 10 
   867.20 10 
     9.8 8 
   100 6 


     742.33
     294.319
5-
6+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - Kπ=3+,ν1/2[631]+ν5/2[622].
    1030.55 4  (3)+ 1.32 ns 15       
    1076.22 9  (4+)      934.50 10 
  1033.50 20 
   100 12 
    40 4 


     141.690
      42.824
4+
2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - Kπ=0+ band.
    1089.45 10  0+        
    1130.95 9  (2+)      989.20 10 
  1088.30 20 
  1131.00 20 
   100 7 
    39 4 
    75 6 



     141.690
      42.824
       0.0
4+
2+
0+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 7 - Kπ=2+ band.
    1136.97 13  (2+)        
    1177.63 8  (3+)      139.90 10 
   147.2 1 
   175.40 10 ?
  1036.1 3 
  1135.1 3 
 
 
 
    33 4 
   100 6 





    1037.55
    1030.55
    1001.94
     141.690
      42.824
(4-)
(3)+
(3-)
4+
2+
    1232.46 10  (4+)      938.20 10 
  1090.50 20 
  1190.0 10 
   100 17 
    44 9 
     7 4 



     294.319
     141.690
      42.824
6+
4+
2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 8 - Kπ=2- band.
    1240.8 3  (2-)        
    1282 2  (3-)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 9 - Kπ=5-, π5/2[642]+π5/2[523]
    1308.74 5  (5-) 165 ns 10       
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 10 - Kπ=0-, π5/2[642]-π5/2[523]
    1410.75 11  0(-)        
    1438.45 8  2(-)      789.59 10 
   841.11 10 
  1438.5
   100 17 
    83 9 
    <0.6



     648.86
     597.34
       0.0
3-
1-
0+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 11 - Kπ=0+ band.
    1525.86 8  (0+)        
    1558.87 5  (2+)      910.10 10 
   961.62 10 
  1417.20 10 
  1515.90 10 
  1558.80 10 
   100 14 
    93 5 
    16 3 
    11 4 
     4.3 14 





     648.86
     597.34
     141.690
      42.824
       0.0
3-
1-
4+
2+
0+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 12 - SD-1 Band, Kπ=0+.
       X (0+) 3.6 ns 2 
% SF > 0
     
      20.1+X (2+)       20.1S
 
[E2]
       X
(0+)
      66.8+X (4+)       46.72 9 
   100
(E2)
      20.1+X
(2+)
     139.9+X (6+)       73.12 12 
   100
(E2)
      66.8+X
(4+)
     239.2+X (8+)       99.35 13 
   100
(E2)
     139.9+X
(6+)
     364.5+X (10+)      126?
 

     239.2+X
(8+)
     516.9+X (12+)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 13 - SD-2 Band, Kπ=2-.
     806.2+X 1  (2-)        
     825.6+X 2  (3-)       19.4S
   758.9 2 
   805.4 2 
 
   <70
   100 13 



     806.2+X
      66.8+X
      20.1+X
(2-)
(4+)
(2+)
     851.1+X 4  (4-)       25.5S
    44.8
 
 

(E2)
     825.6+X
     806.2+X
(3-)
(2-)
     882.8+X 6  (5-)       31.7
    57.2
 
 
(E2)
(E2)
     851.1+X
     825.6+X
(4-)
(3-)
     920.7+X 12  (6-)       37.9S
    69.6S
 
 


     882.8+X
     851.1+X
(5-)
(4-)
     966.5+X 13  (7-)       45.8S
    83.7S
 
 


     920.7+X
     882.8+X
(6-)
(5-)
  1019+X (8-)     
  1078+X (9-)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 14 - SD-3 Band, Kπ=1-.
     836.0+X 5  (1-)        
     846.8+X 3  (2-)      826.7 3 
   100

      20.1+X
(2+)
     866.0+X 10  (3-)      799 1 
   846 1 
   100 22 
    67 33 


      66.8+X
      20.1+X
(4+)
(2+)
     891.2+X 3  (4-)      824.4 3 
   100

      66.8+X
(4+)
     918.8+X 3  (5-)      778.9 3 
   852.0 5 
   100 25 
    42 17 


     139.9+X
      66.8+X
(6+)
(4+)
     960.7+X 2  (6-)      820.8 2 
   100

     139.9+X
(6+)
     998.3+X 7  (7-)      758.9 2 
   858.7 3 
  <320
   100 40 


     239.2+X
     139.9+X
(8+)
(6+)
    1054.9+X 5  (8-)      815.7 3 
   100

     239.2+X
(8+)
  1104+X (9-)     
  1172+X (10-)     
  1232+X? (11-)      714.7 3 ?
   100

     516.9+X
(12+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 15 - SD-4 Band, Kπ=1-.
    1344.5+X (1-)        
    1360.9+X 2  (2-)      408.4
   514.8 15 
   525
   535.2 2 
   554.8 2 
  1341
 
    67
    42
   100 25 
  <225
  <115
(E0)
(E0)


(E0)

     952.5+X
     846.8+X
     836.0+X
     825.6+X
     806.2+X
      20.1+X
(2-)
(2-)
(1-)
(3-)
(2-)
(2+)
    1386.6+X 3  (3-)      415.7?
   520.4 14 
   535.5 3 
   561.0 2 
  1319.9
 
   <44
    61 17 
   100 17 
    26
(E0)
(E0)

(E0)

     970.6+X
     866.0+X
     851.1+X
     825.6+X
      66.8+X
(3-)
(3-)
(4-)
(3-)
(4+)
    1421.4+X 6  (4-)      409.2?
   529.0 12 
   538.6 2 
   570.3 4 
  1355
 
 
   <43
   100 14 
    23
(E0)
(E0)

(E0)

    1012.2+X
     891.2+X
     882.8+X
     851.1+X
      66.8+X
(4-)
(4-)
(5-)
(4-)
(4+)
    1465.7+X 6  (5-)      543.6 1 
   545 1 
   582.9 2 
  1324.5?
     2
    64
   100 27 
   <22
(E0)

(E0)

     918.8+X
     920.7+X
     882.8+X
     139.9+X
(5-)
(6-)
(5-)
(6+)
    1518.7+X 13  (6-)      409.7?
   554.3 4 
   556.5 1 
   598.0 5 
  1379.5
 
  <340
     2
   100
    17
(E0)

(E0)
(E0)

    1109.0+X
     966.5+X
     960.7+X
     920.7+X
     139.9+X
(6-)
(7-)
(6-)
(6-)
(6+)
    1580.5+X 14  (7-)      418.6?
   581.8 12 
   614.0 5 
  1341.3?
 
 
   100
  <115
(E0)
(E0)
(E0)

    1161.5+X
     998.3+X
     966.5+X
     239.2+X
(7-)
(7-)
(7-)
(8+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
    1654.7+X (8-)      595.1 18 ?
   600.0?
   636?
  1414.3?
 
 
   100
    40
(E0)
(E0)


    1054.9+X
    1054.9+X
  1019+X
     239.2+X
(8-)
(8-)
(8-)
(8+)
  1732+X (9-)      628.3 13 ?
   655?
  1369?
 
   100
    30
(E0)


  1104+X
  1078+X
     364.5+X
(9-)
(9-)
(10+)
  1816+X (10-)      644.9 14 ?
  1454.0?
 
 
(E0)

  1172+X
     364.5+X
(10-)
(10+)
    1910.0+X? (11-)      678.0?
  1393?
 
 
(E0)

  1232+X
     516.9+X
(11-)
(12+)
    2011.0+X (12-)     1494.0?
   100

     516.9+X
(12+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 16 - SD-5 Band, Kπ=0- octupole band.
     554.7+X (1-)        
     589.7+X (3-)      569.6
   100

      20.1+X
(2+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 17 - SD-6 band, Kπ=0+ β band.
     769.9+X 10  (0+)        
     785.1+X 11  (2+)      765.0 11 
   100
(E0)
      20.1+X
(2+)
     825.0+X 11  (4+)      758.2 11 
   100
(E0)
      66.8+X
(4+)
     892.4+X 12  (6+)      752.5 12 
   100
(E0)
     139.9+X
(6+)
     986.8+X 13  (8+)      747.6 13 
   100
(E0)
     239.2+X
(8+)
    1104.2+X (10+)      739.6 14 
   100
(E0)
     364.5+X
(10+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 18 - Kπ=0+ SD BANDHEADS.
  2184+X (0+)        
  2276+X (0+)     
  2375+X (0+)     
  2435+X (0+)     
  2453+X (0+)     
  2483+X (0+)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 19 - Kπ=0+ SD BANDHEADS.
  2800+X (0+)        
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 20 - SD-7 band, Kπ=1-.
     936.4+X (1-)        
     952.5+X (2-)      932.4?
   100

      20.1+X
(2+)
     970.6+X (3-)      904.1?
   100

      66.8+X
(4+)
    1012.2+X (4-)      945.4?
   100

      66.8+X
(4+)
    1044.0+X (5-)      904.1?
   100

     139.9+X
(6+)
    1109.0+X (6-)      969.1?
   100

     139.9+X
(6+)
    1161.5+X (7-)      922.3?
   100

     239.2+X
(8+)
    1230.4+X (8-)      991.2?
   100

     239.2+X
(8+)
    1300.9+X (9-)      936.4?
   100

     364.5+X
(10+)
    1382.9+X (10-)     1018.4?
   100

     364.5+X
(10+)
    1461.8+X? (11-)      944.9?
   100

     516.9+X
(12+)
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 21 - SD-8 band, Kπ=1-.
    1246.5+X (1-)        
    1261.0+X (2-)      414.2?
   425.5?
  1241.0?
 
   100
    25
(E0)


     846.8+X
     836.0+X
      20.1+X
(2-)
(1-)
(2+)
    1287.0+X (3-)      420?
   440.3?
  1220.0?
 
    50
   100
(E0)


     866.0+X
     846.8+X
      66.8+X
(3-)
(2-)
(4+)
    1322.0+X (4-)      403?
   454.8?
  1255?
    17
    67
   100



     918.8+X
     866.0+X
      66.8+X
(5-)
(3-)
(4+)
    1366.5+X (6-)      406.4?
  1226.5?
   100
  <500


     960.7+X
     139.9+X
(6-)
(6+)
    1421.0+X (6-)     1281?
   100

     139.9+X
(6+)
    1485.5+X (7-)     1246.5?
   100

     239.2+X
(8+)
    1559.0+X (8-)     1320?
   100

     239.2+X
(8+)
    1641.5+X (9-)     1276?
   100

     364.5+X
(10+)
    1733.5+X (10-)     1369?
   100

     364.5+X
(10+)
    1835.0+X? (11-)     1318?
   100

     516.9+X
(12+)

Back to top

Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
      42.824 2+ 167 ps 6      42.824 8 E2 906B(E2)(W.u.)=287 11, α=906, α(L)=658 10, α(M)=183 3, α(N)=50.4 7, α(O)=11.84 17, α(P)=1.85 3, α(Q)=0.00390 6, α(N+)=64.1 9
     141.690 4+       98.860 13 E2 16.65α=16.65, α(L)=12.08 17, α(M)=3.38 5, α(N)=0.930 13, α(O)=0.219 3, α(P)=0.0349 5, α(Q)=0.0001222 18, α(N+)=1.185 17
     294.319 6+      152.630 20 E2 2.49α=2.49, α(K)=0.196 3, α(L)=1.665 24, α(M)=0.465 7, α(N)=0.1278 18, α(O)=0.0302 5, α(P)=0.00488 7, α(Q)=2.76×10-5 4, α(N+)=0.1629 23
     497.37 8+      203.1 2 (E2) 0.807α=0.807, α(K)=0.1471 21, α(L)=0.480 7, α(M)=0.1332 20, α(N)=0.0366 6, α(O)=0.00867 13, α(P)=0.001419 21, α(Q)=1.201×10-5 18, α(N+)=0.0467 7
     597.34 1-      554.60 7 E1 0.01179α=0.01179, α(K)=0.00949 14, α(L)=0.001734 25, α(M)=0.000417 6, α(N)=0.0001126 16, α(O)=2.77×10-5 4, α(P)=5.13E-6 8, α(Q)=2.99E-7 5, α(N+)=0.0001458 21
1-      597.40 7 E1 0.01024α=0.01024, α(K)=0.00826 12, α(L)=0.001495 21, α(M)=0.000359 5, α(N)=9.70×10-5 14, α(O)=2.39E-5 4, α(P)=4.43E-6 7, α(Q)=2.62E-7 4, α(N+)=0.0001256 18
     742.33 5- < 2 ns    448.01 6 [E1] 0.0179B(E1)(W.u.)>0.39E-6, α=0.0179, α(K)=0.01433 20, α(L)=0.00269 4, α(M)=0.000648 9, α(N)=0.0001753 25, α(O)=4.31E-5 6, α(P)=7.90E-6 11, α(Q)=4.45E-7 7, α(N+)=0.000227 4
5- < 2 ns    600.57 6 [E1] 0.01013B(E1)(W.u.)>0.24E-6, α=0.01013, α(K)=0.00818 12, α(L)=0.001480 21, α(M)=0.000355 5, α(N)=9.60E-5 14, α(O)=2.37E-5 4, α(P)=4.38E-6 7, α(Q)=2.59E-7 4, α(N+)=0.0001243 18
     747.4 10+      250.2 2 (E2) 0.383α=0.383, α(K)=0.1059 15, α(L)=0.202 3, α(M)=0.0556 8, α(N)=0.01527 22, α(O)=0.00363 6, α(P)=0.000600 9, α(Q)=6.92×10-6 10, α(N+)=0.0195 3
     860.71 0+      263.37 7 [E1] 0.0550α=0.0550, α(K)=0.0433 6, α(L)=0.00881 13, α(M)=0.00214 3, α(N)=0.000578 9, α(O)=0.0001409 20, α(P)=2.52×10-5 4, α(Q)=1.277E-6 18, α(N+)=0.000745 11
0+      817.89 10 E2 0.0183α=0.0183, α(K)=0.01302 19, α(L)=0.00389 6, α(M)=0.000990 14, α(N)=0.000270 4, α(O)=6.59×10-5 10, α(P)=1.194E-5 17, α(Q)=5.27E-7 8, α(N+)=0.000348 5
     900.32 2+      251.47 7 [E1] 0.0610α=0.0610, α(K)=0.0480 7, α(L)=0.00983 14, α(M)=0.00239 4, α(N)=0.000645 9, α(O)=0.0001571 22, α(P)=2.81×10-5 4, α(Q)=1.406E-6 20, α(N+)=0.000832 12
2+      302.98 7 [E1] 0.0405α=0.0405, α(K)=0.0320 5, α(L)=0.00637 9, α(M)=0.001543 22, α(N)=0.000417 6, α(O)=0.0001018 15, α(P)=1.84×10-5 3, α(Q)=9.59E-7 14, α(N+)=0.000538 8
2+      758.61 8 E2 0.0212α=0.0212, α(K)=0.01484 21, α(L)=0.00474 7, α(M)=0.001212 17, α(N)=0.000331 5, α(O)=8.06×10-5 12, α(P)=1.453E-5 21, α(Q)=6.09E-7 9, α(N+)=0.000427 6
2+      857.48 10 [M1,E2] 0.04α=0.04 3, α(K)=0.034 22, α(L)=0.007 4, α(M)=0.0017 9, α(N)=0.00047 24, α(O)=0.00012 6, α(P)=2.2×10-5 12, α(Q)=1.3E-6 9, α(N+)=0.0006 3
2+      900.37 10 [E2] 0.01512α=0.01512, α(K)=0.01103 16, α(L)=0.00305 5, α(M)=0.000771 11, α(N)=0.000210 3, α(O)=5.14×10-5 8, α(P)=9.38E-6 14, α(Q)=4.39E-7 7, α(N+)=0.000272 4
     992.4 4+      249.7 10 [E1] 0.0620α=0.0620 11, α(K)=0.0487 8, α(L)=0.01000 17, α(M)=0.00243 5, α(N)=0.000656 12, α(O)=0.000160 3, α(P)=2.85×10-5 5, α(Q)=1.427E-6 24, α(N+)=0.000846 15
4+      343.7 10 [E1] 0.0309α=0.0309, α(K)=0.0245 4, α(L)=0.00479 8, α(M)=0.001158 18, α(N)=0.000313 5, α(O)=7.66×10-5 12, α(P)=1.390E-5 22, α(Q)=7.44E-7 12, α(N+)=0.000404 7
    1030.55 (3)+ 1.32 ns 15     382.1 10 [E1] 0.0247α=0.0247, α(K)=0.0197 3, α(L)=0.00379 6, α(M)=0.000915 14, α(N)=0.000247 4, α(O)=6.06×10-5 10, α(P)=1.105E-5 17, α(Q)=6.04E-7 9, α(N+)=0.000319 5
(3)+ 1.32 ns 15     888.85 5 E2 0.01550B(E2)(W.u.)=2.2E-3 3, α=0.01550, α(K)=0.01127 16, α(L)=0.00315 5, α(M)=0.000797 12, α(N)=0.000217 3, α(O)=5.31E-5 8, α(P)=9.68E-6 14, α(Q)=4.49E-7 7, α(N+)=0.000281 4
(3)+ 1.32 ns 15     987.79 6 E2(+M1)10 GT0.0128B(E2)(W.u.)=3.8E-3 5, α=0.0128 3, α(N)=0.000168 3, α(O)=4.13E-5 7, α(P)=7.57E-6 13, α(Q)=3.74E-7 8
    1041.1 12+      293.8 2 (E2) 0.226α=0.226, α(K)=0.0802 12, α(L)=0.1063 16, α(M)=0.0291 5, α(N)=0.00800 12, α(O)=0.00190 3, α(P)=0.000319 5, α(Q)=4.65×10-6 7, α(N+)=0.01022 15
    1277.6 (11-)      220.7 3 (E2) 0.594α=0.594, α(K)=0.1299 19, α(L)=0.338 6, α(M)=0.0936 15, α(N)=0.0257 4, α(O)=0.00610 10, α(P)=0.001003 16, α(Q)=9.59×10-6 14, α(N+)=0.0328 5
    1308.74 (5-) 165 ns 10     147.20 10 (M1,E2) 6α=6 3, α(K)=4 4, α(L)=1.7 3, α(M)=0.44 11, α(N)=0.12 3, α(O)=0.029 7, α(P)=0.0051 7, α(Q)=0.00016 13, α(N+)=0.16 4
(5-) 165 ns 10     193.30 10 (M1,E2) 2.5α=2.5 16, α(K)=1.7 16, α(L)=0.62 3, α(M)=0.161 5, α(N)=0.0440 15, α(O)=0.01067 16, α(P)=0.00188 14, α(Q)=7.E-5 6, α(N+)=0.0566 15
(5-) 165 ns 10     271.30 10 (M1,E2) 0.9α=0.9 7, α(K)=0.7 6, α(L)=0.20 6, α(M)=0.050 11, α(N)=0.014 3, α(O)=0.0033 8, α(P)=0.00061 18, α(Q)=2.8×10-5 23, α(N+)=0.018 4
(5-) 165 ns 10     306.80 10 (E2) 0.197α=0.197, α(K)=0.0742 11, α(L)=0.0899 13, α(M)=0.0246 4, α(N)=0.00675 10, α(O)=0.001608 23, α(P)=0.000270 4, α(Q)=4.20×10-6 6, α(N+)=0.00863 13
(5-) 165 ns 10     566.34 6 (M1,E2) 0.13α=0.13 9, α(K)=0.10 8, α(L)=0.022 11, α(M)=0.005 3, α(N)=0.0015 7, α(O)=0.00036 18, α(P)=7.E-5 4, α(Q)=4.E-6 3, α(N+)=0.0019 9
E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
    1374.8 14+      333.7 3 (E2) 0.1533α=0.1533, α(K)=0.0639 9, α(L)=0.0654 10, α(M)=0.0178 3, α(N)=0.00488 7, α(O)=0.001165 17, α(P)=0.000197 3, α(Q)=3.44×10-6 5, α(N+)=0.00625 9
    2590.2 20+      438.6 3 (E2) 0.0726α=0.0726, α(K)=0.0390 6, α(L)=0.0247 4, α(M)=0.00659 10, α(N)=0.00181 3, α(O)=0.000434 7, α(P)=7.49×10-5 11, α(Q)=1.87E-6 3, α(N+)=0.00232 4
    3059.8 22+      469.6 3 (E2) 0.0612α=0.0612, α(K)=0.0345 5, α(L)=0.0196 3, α(M)=0.00522 8, α(N)=0.001430 21, α(O)=0.000344 5, α(P)=5.97×10-5 9, α(Q)=1.612E-6 23, α(N+)=0.00184 3
    3559.0 24+      499.2 3 (E2) 0.0528α=0.0528, α(K)=0.0310 5, α(L)=0.01610 23, α(M)=0.00426 6, α(N)=0.001167 17, α(O)=0.000281 4, α(P)=4.90×10-5 7, α(Q)=1.417E-6 20, α(N+)=0.001498 22
      20.1+X (2+)       20.1[E2] 2.3×104α=2.3×104 3, α(L)=1.31E4 18, α(M)=7.5E3 10, α(N)=2.0E3 3, α(O)=4.8E2 7, α(P)=74 10, α(Q)=0.108 13, α(N+)=2.6E3 4
      66.8+X (4+)       46.72 9 (E2) 593α=593 10, α(L)=431 8, α(M)=120.3 21, α(N)=33.0 6, α(O)=7.76 13, α(P)=1.215 21, α(Q)=0.00267 5, α(N+)=42.0 7
     139.9+X (6+)       73.12 12 (E2) 68.9α=68.9, α(L)=50.0 8, α(M)=14.00 23, α(N)=3.85 7, α(O)=0.906 15, α(P)=0.1430 23, α(Q)=0.000399 7, α(N+)=4.90 8
     239.2+X (8+)       99.35 13 (E2) 16.27α=16.27, α(L)=11.81 18, α(M)=3.31 5, α(N)=0.909 14, α(O)=0.214 4, α(P)=0.0341 6, α(Q)=0.0001200 18, α(N+)=1.158 18
     806.2+X (2-)      786.1 1 E1 0.00618α=0.00618, α(K)=0.00502 7, α(L)=0.000883 13, α(M)=0.000211 3, α(N)=5.71×10-5 8, α(O)=1.411E-5 20, α(P)=2.63E-6 4, α(Q)=1.616E-7 23, α(N+)=7.40E-5 11
     851.1+X (4-)       44.8(E2) 7.3×102α=7.3×102 5, α(L)=5.3E2 3, α(M)=147 9, α(N)=40.5 24, α(O)=9.5 6, α(P)=1.49 9, α(Q)=0.00321 17, α(N+)=51 3
     882.8+X (5-)       31.7(E2) 3.9×103α=3.9×103 4, α(L)=2.86E3 24, α(M)=8.0E2 7, α(N)=218 18, α(O)=51 5, α(P)=8.0 7, α(Q)=0.0146 11, α(N+)=277 23
(5-)       57.2(E2) 223α=223 11, α(L)=162 8, α(M)=45.3 21, α(N)=12.4 6, α(O)=2.93 14, α(P)=0.460 21, α(Q)=0.00112 5, α(N+)=15.8 8

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
       0.00+ 6561 y 7 
% α = 100
% SF = 5.7×10-6 2
%34Si decay mode: an upper limit was deduced based on an attempt to detect 34Si particles from 240Pu decay as described (p222) in an article by p.B. Price and S.W. Barwick in book: Particle Emission from Nuclei (editors: d.n. Poenaru and M.S. Ivascu), p255 (1989). From the same reference 2003Au02 quote %34Si<1.3×10-13, which seems to be the value per decay.
E(level): %34Si decay mode: an upper limit was deduced based on an attempt to detect 34Si particles from 240Pu decay as described (p222) in an article by p.B. Price and S.W. Barwick in book: Particle Emission from Nuclei (editors: d.n. Poenaru and M.S. Ivascu), p255 (1989). From the same reference 2003Au02 quote %34Si<1.3×10-13, which seems to be the value per decay. Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
      42.8242+ 167 ps 6  B(E2)=13.33 18 (1973Be44)
E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     141.6904+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     294.3196+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     497.378+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     597.341-   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     648.863-   B(E3)=0.41 6 (1974Mc15)
E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     742.335- < 2 ns E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     747.410+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     860.710+   E(level): Kπ=0+ band.
     878.1(7-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
     900.322+   E(level): Kπ=0+ band.
     938.06(1-)   XREF: d(?).
E(level): Kπ=1- band.
     958.85(2-)   E(level): Kπ=1- band.
     992.44+   E(level): Kπ=0+ band.
    1001.94(3-)   E(level): Kπ=1- band.
    1030.55(3)+ 1.32 ns 15  E(level): Kπ=3+,ν1/2[631]+ν5/2[622].
    1037.55(4-)   E(level): Kπ=1- band.
    1041.112+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    1056.8(9-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    1076.22(4+)   E(level): Kπ=3+,ν1/2[631]+ν5/2[622].
    1089.450+   E(level): Kπ=0+ band.
    1115.53(5-)   E(level): Kπ=1- band.
    1130.95(2+)   E(level): Kπ=0+ band.
    1136.97(2+)   XREF: L(1135)O(1137).
E(level): Poor fit in the level scheme. Level-energy difference=546.9 7. 545.3 is quoted in 2001Th16. Kπ=2+ band.
E(level)Jπ(level)T1/2(level)Comments
    1138.3(6+)   E(level): Kπ=0+ band.
    1161.53(6-)   E(level): Kπ=1- band.
    1177.63(3+)   E(level): Poor fit in the level scheme. Level-energy difference=546.9 7. 545.3 is quoted in 2001Th16. Kπ=2+ band.
    1232.46(4+)   E(level): Poor fit in the level scheme. Level-energy difference=546.9 7. 545.3 is quoted in 2001Th16. Kπ=2+ band.
    1240.8(2-)   E(level): Kπ=2- band.
    1277.6(11-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    1282(3-)   E(level): Kπ=2- band.
    1308.74(5-) 165 ns 10  E(level): Kπ=5-, π5/2[642]+π5/2[523].
    1323.4(8+)   E(level): Kπ=0+ band.
    1374.814+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    1410.750(-)   E(level): Kπ=0-, π5/2[642]-π5/2[523].
    1438.452(-)   E(level): Kπ=0-, π5/2[642]-π5/2[523].
    1525.86(0+)   E(level): Kπ=0+ band.
    1539.67(1-)   XREF: H(1538).
    1539.8(13-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    1557.0(10+)   E(level): Kπ=0+ band.
    1558.87(2+)   E(level): Kπ=0+ band.
    1607.72(1-)   XREF: L(1609).
    1745.716+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    1830.3(12+)   E(level): Kπ=0+ band.
    1841.8(15-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    1917.8(1-)   XREF: L(1923).
    2136.8(14+)   E(level): Kπ=0+ band.
    2151.618+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    2182.6(17-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
E(level)Jπ(level)T1/2(level)Comments
    2475.1(16+)   E(level): Kπ=0+ band.
    2560.5(19-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    2590.220+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    2837.1(18+)   E(level): Kπ=0+ band.
    2973.8(21-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    3059.822+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    3218.3(20+)   E(level): Kπ=0+ band.
    3421.1(23-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    3559.024+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    3626.6(22+)   E(level): Kπ=0+ band.
    3900.6(25-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    4063.5(24+)   E(level): Kπ=0+ band.
    4086.326+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    4410.8(27-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    4530.9(26+)   E(level): Kπ=0+ band.
    4639.428+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    4950.0(29-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    5030.0(28+)   E(level): Kπ=0+ band.
    5220.330+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    5512.2(31-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    5559.2(30+)   E(level): Kπ=0+ band.
    5819.332+   E(level): Kπ=0+ GS band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
    6096.3(33-)   E(level): Kπ=0- octupole band.
Jπ(level): From fit to the bands for lower members of the bands. Above 14+ in the g.s. band and above 5- in Kπ=0- band, the assignments are from Coulomb excitation work of 1998Ha08 with parentheses added by the evaluators.
       X(0+) 3.6 ns 2 
% SF > 0
Fission isomer observed in 238U(α,2n); 239Pu(n,γ) and 239Pu(d,p).
E(level): From 240Np β- decay (61.9 min). SD-1 Band, Kπ=0+.
      20.1+X(2+)   E(level): From 240Np β- decay (61.9 min). SD-1 Band, Kπ=0+.
E(level)Jπ(level)T1/2(level)Comments
      66.8+X(4+)   E(level): From 240Np β- decay (61.9 min). SD-1 Band, Kπ=0+.
     139.9+X(6+)   E(level): From 240Np β- decay (61.9 min). SD-1 Band, Kπ=0+.
     239.2+X(8+)   E(level): From 240Np β- decay (61.9 min). SD-1 Band, Kπ=0+.
     364.5+X(10+)   E(level): From 240Np β- decay (61.9 min). SD-1 Band, Kπ=0+. Extrapolated from moment of inertia plot for the band (2001Ga05).
     516.9+X(12+)   E(level): From 240Np β- decay (61.9 min). SD-1 Band, Kπ=0+.
     554.7+X(1-)   E(level): SD-5 Band, Kπ=0- octupole band.
     589.7+X(3-)   E(level): SD-5 Band, Kπ=0- octupole band.
     769.9+X(0+)   E(level): SD-6 band, Kπ=0+ β band.
     785.1+X(2+)   E(level): SD-6 band, Kπ=0+ β band.
     806.2+X(2-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
     825.0+X(4+)   E(level): SD-6 band, Kπ=0+ β band.
     825.6+X(3-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
     836.0+X(1-)   E(level): SD-3 Band, Kπ=1-.
     846.8+X(2-)   E(level): SD-3 Band, Kπ=1-.
     851.1+X(4-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
     866.0+X(3-)   E(level): SD-3 Band, Kπ=1-.
     882.8+X(5-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
     891.2+X(4-)   E(level): SD-3 Band, Kπ=1-.
     892.4+X(6+)   E(level): SD-6 band, Kπ=0+ β band.
     918.8+X(5-)   E(level): SD-3 Band, Kπ=1-.
     920.7+X(6-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
     936.4+X(1-)   E(level): SD-7 band, Kπ=1-.
     952.5+X(2-)   E(level): SD-7 band, Kπ=1-.
     960.7+X(6-)   E(level): SD-3 Band, Kπ=1-.
     966.5+X(7-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
E(level)Jπ(level)T1/2(level)Comments
     970.6+X(3-)   E(level): SD-7 band, Kπ=1-.
     986.8+X(8+)   E(level): SD-6 band, Kπ=0+ β band.
     998.3+X(7-)   E(level): SD-3 Band, Kπ=1-.
    1012.2+X(4-)   E(level): SD-7 band, Kπ=1-.
  1019+X(8-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
    1044.0+X(5-)   E(level): SD-7 band, Kπ=1-.
    1054.9+X(8-)   E(level): SD-3 Band, Kπ=1-.
  1078+X(9-)   E(level): From 244Cm α decay. SD-2 Band, Kπ=2-.
  1104+X(9-)   E(level): SD-3 Band, Kπ=1-.
    1104.2+X(10+)   E(level): SD-6 band, Kπ=0+ β band.
    1109.0+X(6-)   E(level): SD-7 band, Kπ=1-.
    1161.5+X(7-)   E(level): SD-7 band, Kπ=1-.
  1172+X(10-)   E(level): SD-3 Band, Kπ=1-.
    1230.4+X(8-)   E(level): SD-7 band, Kπ=1-.
  1232+X(11-)   E(level): SD-3 Band, Kπ=1-.
    1246.5+X(1-)   E(level): SD-8 band, Kπ=1-.
    1261.0+X(2-)   E(level): SD-8 band, Kπ=1-.
    1287.0+X(3-)   E(level): SD-8 band, Kπ=1-.
    1300.9+X(9-)   E(level): SD-7 band, Kπ=1-.
    1322.0+X(4-)   E(level): SD-8 band, Kπ=1-.
    1344.5+X(1-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1360.9+X(2-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1366.5+X(6-)   E(level): SD-8 band, Kπ=1-.
    1382.9+X(10-)   E(level): SD-7 band, Kπ=1-.
    1386.6+X(3-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
E(level)Jπ(level)T1/2(level)Comments
    1421.0+X(6-)   E(level): SD-8 band, Kπ=1-.
    1421.4+X(4-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1461.8+X(11-)   E(level): SD-7 band, Kπ=1-.
    1465.7+X(5-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1485.5+X(7-)   E(level): SD-8 band, Kπ=1-.
    1518.7+X(6-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1559.0+X(8-)   E(level): SD-8 band, Kπ=1-.
    1580.5+X(7-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1641.5+X(9-)   E(level): SD-8 band, Kπ=1-.
    1654.7+X(8-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
  1732+X(9-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1733.5+X(10-)   E(level): SD-8 band, Kπ=1-.
  1816+X(10-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    1835.0+X(11-)   E(level): SD-8 band, Kπ=1-.
    1910.0+X(11-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
    2011.0+X(12-)   E(level): From 240Am ε decay. SD-4 Band, Kπ=1-.
  2184+X(0+)   E(level): Kπ=0+ SD BANDHEADS.
  2276+X(0+)   E(level): Kπ=0+ SD BANDHEADS.
  2375+X(0+)   E(level): Kπ=0+ SD BANDHEADS.
  2435+X(0+)   E(level): Kπ=0+ SD BANDHEADS.
  2453+X(0+)   E(level): Kπ=0+ SD BANDHEADS.
  2483+X(0+)   E(level): Kπ=0+ SD BANDHEADS.
  2800+X(0+)   E(level): Kπ=0+ SD BANDHEADS.

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Additional Gamma Comments:

E(level)E(gamma)Comments
      42.824      42.824E(γ): From 244Cm α decay
M(γ): from 240Am ε decay, 244Cm α decay.
     141.690      98.860E(γ): From 244Cm α decay
M(γ): from 240Am ε decay
     294.319     152.630E(γ): From 244Cm α decay
     497.37     203.1M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     597.34     554.60M(γ): From 240Np β- decay (7.22 min)
     597.40M(γ): From 240Np β- decay (7.22 min)
     742.33     448.01E(γ): From 240Np β- decay (61.9 min)
     600.57E(γ): From 240Np β- decay (61.9 min)
     747.4     250.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     860.71     817.89M(γ): From 240Np β- decay (7.22 min)
     860.7M(γ): from 244Cm α decay
     900.32     758.61M(γ): From 240Np β- decay (7.22 min)
     992.4     249.7E(γ): From 240Am ε decay
     343.7E(γ): From 240Am ε decay
     697.8E(γ): From 240Am ε decay
    1001.94     959.1E(γ): From 240Np β- decay (61.9 min)
    1030.55     888.85E(γ): From 240Am ε decay
M(γ): from 240Am ε decay
     987.79E(γ): From 240Am ε decay
M(γ): from 240Am ε decay
    1037.55     295.20E(γ): From 240Np β- decay (61.9 min)
     388.70E(γ): From 240Np β- decay (61.9 min)
     895.80E(γ): From 240Np β- decay (61.9 min)
    1041.1     293.8M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1056.8     309.4M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     559.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1076.22     934.50E(γ): From 240Np β- decay (61.9 min)
    1033.50E(γ): From 240Np β- decay (61.9 min)
E(level)E(gamma)Comments
    1115.53     466.70E(γ): From 240Np β- decay (61.9 min)
     821.20E(γ): From 240Np β- decay (61.9 min)
     973.90E(γ): From 240Np β- decay (61.9 min)
    1130.95     989.20E(γ): poor fit. Level-energy difference=990.26
    1161.53     419.20E(γ): From 240Np β- decay (61.9 min)
     867.20E(γ): From 240Np β- decay (61.9 min)
    1177.63     139.90E(γ): From 240Np β- decay (61.9 min)
     147.2E(γ): Multiply placed. Placement from 1177 level proposed by the evaluators. 1982Pa23, in 240Np β- decay (61.9 min), proposed placement from only the 1309 keV level. The ΔK=4 involved for a transition from 1309-keV level to 1161-keV level suggests placement by 1982Pa23 is less likely
     175.40E(γ): From 240Np β- decay (61.9 min)
    1036.1E(γ): From 240Am ε decay
    1135.1E(γ): From 240Am ε decay
    1232.46     938.20E(γ): From 240Np β- decay (61.9 min)
    1090.50E(γ): From 240Np β- decay (61.9 min)
    1190.0E(γ): From 240Am ε decay
    1262.08    1120.3E(γ): From 240Am ε decay
    1219.3E(γ): From 240Am ε decay
    1277.6     220.7M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     236.6M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     530.1M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1308.74     147.20E(γ): Multiply placed. From 240Np β- decay (61.9 min). Placement from 1177 level proposed by the evaluators. 1982Pa23, in 240Np β- decay (61.9 min), proposed placement from only the 1309 keV level. The ΔK=4 involved for a transition from 1309-keV level to 1161-keV level suggests placement by 1982Pa23 is less likely
M(γ): From 240Np β- decay (61.9 min)
     193.30E(γ): From 240Np β- decay (61.9 min)
M(γ): From 240Np β- decay (61.9 min)
     271.30E(γ): From 240Np β- decay (61.9 min)
M(γ): From 240Np β- decay (61.9 min)
     306.80E(γ): From 240Np β- decay (61.9 min)
M(γ): (M1+E2) from ce data, E2 required by ΔJπ
     566.34E(γ): From 240Np β- decay (61.9 min)
M(γ): From 240Np β- decay (61.9 min)
    1014.40E(γ): From 240Np β- decay (61.9 min)
    1167.10E(γ): From 240Np β- decay (61.9 min)
E(level)E(gamma)Comments
    1337.02    1195.5E(γ): From 240Am ε decay
    1294.1E(γ): From 240Am ε decay
    1374.8     333.7M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1539.8     262.1M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     498.7M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1557.0     500.3M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1745.7     371.0M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1830.3     273.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     552.7M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    1841.8     302.1M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2136.8     306.5M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     597.1M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2151.6     405.9M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2182.6     340.7M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2475.1     338.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     633.3M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2560.5     377.9M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2590.2     438.6M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2837.1     362.0M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    2973.8     413.3M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    3059.8     469.6M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    3218.3     381.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    3421.1     447.3M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    3559.0     499.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    3900.6     479.5M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
E(level)E(gamma)Comments
    4086.3     527.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
    4410.8     510.2M(γ): From ΔJ=2, quadrupole (most likely E2) or ΔJ=1, dipole (most likely E1) from γ(θ) data in Coulomb excitation (2007WaZV)
     554.7+X     554.7I(γ): for triplet
     769.9+X     769.9M(γ): (0+) to (0+) transition
     825.6+X     758.9I(γ): for doublet
     998.3+X     758.9I(γ): For doublet
    1246.5+X    1226.5E(γ): Multiply placed
    1246.5E(γ): Multiply placed
    1344.5+X     538I(γ): 538γ and 538.6γ are unresolved and intensities are undivided
    1324.5E(γ): Multiply placed
    1360.9+X     554.8I(γ): For doublet
    1366.5+X    1226.5E(γ): Multiply placed
    1421.4+X     538.6I(γ): 538γ and 538.6γ are unresolved and intensities are undivided
    1465.7+X     543.6E(γ): Poor fit in the level scheme. Level-energy difference=546.9 7. 545.3 is quoted in 2001Th16
    1324.5E(γ): Multiply placed
    1485.5+X    1246.5E(γ): Multiply placed
    1518.7+X     554.3I(γ): For doublet

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