ADOPTED LEVELS, GAMMAS for 245Cm

Authors: E. Browne, J. K. Tuli |  Citation: Nucl. Data Sheets 112, 447 (2011) |  Cutoff date: 1-Jun-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-810.7 keV 18S(n)= 5520.3 keV 10S(p)= 6165.2 keV 15Q(α)= 5623.0 keV 10
Reference: 2012WA38

References:
  A  249Cf α decay  B  245Am β- decay
  C  245Bk ε decay  D  246Cm(d,t), 244Cm(d,p)

General Comments:

Other reactions:

244Cm(n,γ): Calculated cross-sections (2009MaZK).

244Cm(n,F): Measured Eγ, Iγ. Deduced cross-sections (2008BrZW,2008JuZZ).

Analyzed neutron-capture and fission cross sections (2008Pa14,2005Oh05)

Measured neutron-capture and fission cross-sections (2007Ko28).

Levels: See 1971Br27, 1971Ga20, 1974Mo18 and 1976Ch22 for theoretical calculations of quasiparticle energies and collective 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
      0.0ABCD 7/2+ 8423 y 74 
% α = 100
% SF = 6.1×10-7 9
     
     54.789 13 ABCD 9/2+ ≤ 0.10 ns     54.77 3 
  100
M1+E2
      0.0
7/2+
    121.584 18 A  D 11/2+       66.80 2 
   121.60 4 
   64 4 
  100 10 
M1+E2

     54.789
      0.0
9/2+
7/2+
    197.4 20 A    13/2+       75.8 20 ?
 

    121.584
11/2+
    252.840 17 ABCD 5/2+      198.1 3 
   252.82 3 
    0.54 7 
  100 7 
E2
M1+E2
     54.789
      0.0
9/2+
7/2+
    295.708 14 ABCD 7/2+       42.87 2 
   240.89 4 
   295.73 2 
   17.5 10 
  100 4 
   65 3 

M1(+E2)
M1+E2
    252.840
     54.789
      0.0
5/2+
9/2+
7/2+
    350.66 3 A  D 9/2+       54.8
   229.20 8 
   20 15 
  100 5 


    295.708
    121.584
7/2+
11/2+
    355.92 10   CD 1/2+ 0.29 µs 2     103.1 1 
 
E2
    252.840
5/2+
    361.4 4   CD (3/2+)        
    388.181 13 A    9/2- 0.450 ns 20      37.54 3 
    92.51 2 
   266.63 2 
   333.37 2 
   388.17 2 
    0.0224 11 
    0.494 16 
    1.05 4 
   21.1 6 
  100 3 
[E1]
[E1]
(E1)
E1
E1
    350.66
    295.708
    121.584
     54.789
      0.0
9/2+
7/2+
11/2+
9/2+
7/2+
    416.61 4 A  D 11/2+       65.95 2 
 

    350.66
9/2+
    418.7 4   C  (5/2+)        
    431 2    D (7/2+)        
    442.918 21 A    11/2-       54.77 2 
   321.25 3 
   56 13 
  100 6 
M1+E2

    388.181
    121.584
9/2-
11/2+
    497.6 10 A  D 13/2+       81
 

    416.61
11/2+
    508.87 3 A    13/2-       65.95 2 
   120.80 10 
 
 


    442.918
    388.181
11/2-
9/2-
    532 2    D (9/2+)        
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    545 3 A           
    554.7 3 A  D (11/2+)      259.0 3 
  100

    295.708
7/2+
    587.9 10 A  D (15/2-)       79
 

    508.87
13/2-
    597.6 15 A    (15/2+)      100
 

    497.6
13/2+
    633.64 11   C  (3/2)-      272.2 3 
   380.8 1 
    0.50 13 
  100

E1
    361.4
    252.840
(3/2+)
5/2+
   ≈638?A           
    643.64 2 A    (7/2-)      255.56 8 
   390.85 5 
   588.79 4 
   643.2 3 
  100 8 
   58 12 
    1.5 1 
   20 1 




    388.181
    252.840
     54.789
      0.0
9/2-
5/2+
9/2+
7/2+
    660 5 ?   D        
    661.53 8   C  5/2-      365.8 1 
   408.7 1 
  100
   51 9 
E1
[E1]
    295.708
    252.840
7/2+
5/2+
    672 3 A    (17/2-)        
    701.817 21 A    (9/2-)      405.94 6 
   580.27 9 
   647.04 3 
   701.84 3 ?
  100 6 
    3.7 4 
   34 2 
   21 2 




    295.708
    121.584
     54.789
      0.0
7/2+
11/2+
9/2+
7/2+
    722 3 A    (7/2+)        
    736.3 5 ?A         483.5 5 
  100

    252.840
5/2+
    740.97 12   CD (1/2)+      385.0 1 
   488.2 2 
  100
    2.5 6 
M1

    355.92
    252.840
1/2+
5/2+
    769.2 4   CD (3/2+)      350.5 1 
   407.8 2 
  100
  ≈37
M1
(M1)
    418.7
    361.4
(5/2+)
(3/2+)
    771.86 4 A    (11/2-)      356 1 
   421.0 3 
   650.30 5 
   717.04 5 
 
  100 9 
   31 2 
   43 3 




    416.61
    350.66
    121.584
     54.789
11/2+
9/2+
11/2+
9/2+
    774.3 7 A  D (11/2-)      652.7 7 
  100

    121.584
11/2+
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
    785.23 9 A  D (9/2+)      663.65 8 
  100

    121.584
11/2+
    791 4    D (5/2+)        
    841.1 5 A         841.1 5 
  100

      0.0
7/2+
    849.2 3 A         596.1 3 
   849.9 5 
  100 15 
   14 2 


    252.840
      0.0
5/2+
7/2+
    852.59 10 A    (11/2+)      731.0 1 
   798.0 5 
  100 10 
   20 3 


    121.584
     54.789
11/2+
9/2+
    856 3    D (7/2+)        
   ≈866A    (13/2-)        
    890.61 9 A  D (9/2+)      890.61 9 
  100

      0.0
7/2+
    900.1 5 A         483.5 5 
  100

    416.61
11/2+
    906.6 6 A  D      906.6 5 
  100

      0.0
7/2+
    913 3    D (1/2-)        
   ≈936A           
    942 3    D        
    956 2    D (3/2-,5/2-)        
    971.38 2 A         718.50 3 
   849.9 5 
   916.63 3 
   971.38 4 
  100 6 
    2.0 3 
   34 2 
    0.3 2 




    252.840
    121.584
     54.789
      0.0
5/2+
11/2+
9/2+
7/2+
    980 5    D        
    995 5    D        
  ≈1009A           
   1017 4    D        
   1042 5    D        
   1050 5    D        
   1054.7 8 A  D     1054.7 8 
  100

      0.0
7/2+
   1083 3    D        
   1102.3 5 A  D     1102.3 5 
  100

      0.0
7/2+
   1259 5    D        
E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
   1271 2    D        
   1473 3    D        
      2.1E+3 3      13.2 ns 18 
% SF ≤ 100
     

E(level): Deduced by evaluators from least-squares fit to γ-ray energies, unless otherwise specified.

Jπ(level): Assignments from (d,p), (d,t) data are based on L-transfer values deduced from cross sections measured at 90|’ and 140|’, and on comparison of experimental cross sections with calculated "signatures ". Nilsson orbital and band assignments to some levels above 900 keV are tentatively proposed in 1971Br27 from (d,p) and (d,t) reaction data. For the suggested assignments, see (d,p), (d,t) reactions.

E(γ): From 249Cf α decay, 245Bk ε decay and 245Am β- decay.

I(γ): Relative intensity from each level.

M(γ): From 249Cf α decay and 245Bk ε 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 - 7/2[624] ROTATIONAL band.
      0.0 7/2+ 8423 y 74 
% α = 100
% SF = 6.1×10-7 9
     
     54.789 13  9/2+ ≤ 0.10 ns     54.77 3 
  100
M1+E2
      0.0
7/2+
    121.584 18  11/2+       66.80 2 
   121.60 4 
   64 4 
  100 10 
M1+E2

     54.789
      0.0
9/2+
7/2+
    197.4 20  13/2+       75.8 20 ?
 

    121.584
11/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - 5/2[622] ROTATIONAL band.
    252.840 17  5/2+        
    295.708 14  7/2+       42.87 2 
   240.89 4 
   295.73 2 
   17.5 10 
  100 4 
   65 3 

M1(+E2)
M1+E2
    252.840
     54.789
      0.0
5/2+
9/2+
7/2+
    350.66 3  9/2+       54.8
   229.20 8 
   20 15 
  100 5 


    295.708
    121.584
7/2+
11/2+
    416.61 4  11/2+       65.95 2 
 

    350.66
9/2+
    497.6 10  13/2+       81
 

    416.61
11/2+
    597.6 15  (15/2+)      100
 

    497.6
13/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - 1/2[631] ROTATIONAL band.
    355.92 10  1/2+ 0.29 µs 2       
    361.4 4  (3/2+)     
    418.7 4  (5/2+)     
    431 2  (7/2+)     
    532 2  (9/2+)     
    554.7 3  (11/2+)      259.0 3 
  100

    295.708
7/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 4 - 9/2[734] ROTATIONAL band.
    388.181 13  9/2- 0.450 ns 20       
    442.918 21  11/2-       54.77 2 
   321.25 3 
   56 13 
  100 6 
M1+E2

    388.181
    121.584
9/2-
11/2+
    508.87 3  13/2-       65.95 2 
   120.80 10 
 
 


    442.918
    388.181
11/2-
9/2-
    587.9 10  (15/2-)       79
 

    508.87
13/2-
    672 3  (17/2-)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 5 - K=3/2 band.
    633.64 11  (3/2)-        
    661.53 8  5/2-      365.8 1 
   408.7 1 
  100
   51 9 
E1
[E1]
    295.708
    252.840
7/2+
5/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 6 - 7/2[743] ROTATIONAL band.
    643.64 2  (7/2-)        
    701.817 21  (9/2-)      405.94 6 
   580.27 9 
   647.04 3 
   701.84 3 ?
  100 6 
    3.7 4 
   34 2 
   21 2 




    295.708
    121.584
     54.789
      0.0
7/2+
11/2+
9/2+
7/2+
    774.3 7  (11/2-)      652.7 7 
  100

    121.584
11/2+
   ≈866 (13/2-)     
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 7 - 7/2[613] ROTATIONAL band.
    722 3  (7/2+)        
    785.23 9  (9/2+)      663.65 8 
  100

    121.584
11/2+
    852.59 10  (11/2+)      731.0 1 
   798.0 5 
  100 10 
   20 3 


    121.584
     54.789
11/2+
9/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 8 - 1/2[620] ROTATIONAL band.
    740.97 12  (1/2)+        
    769.2 4  (3/2+)      350.5 1 
   407.8 2 
  100
  ≈37
M1
(M1)
    418.7
    361.4
(5/2+)
(3/2+)
    791 4  (5/2+)     
    856 3  (7/2+)     
    890.61 9  (9/2+)      890.61 9 
  100

      0.0
7/2+
E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 9 - 1/2[501] ROTATIONAL band.
    913 3  (1/2-)        
    956 2  (3/2-,5/2-)     

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Additional Gamma Data:















E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityMixing
Ratio
Conversion
Coefficient
Additional Data
     54.789 9/2+ ≤ 0.10 ns     54.77 3 M1+E21.3 32.2×102B(E2)(W.u.)>2.4×102, B(M1)(W.u.)>0.0013, α=2.2E2 4, α(L)=1.6E2 3, α(M)=44 8, α(N)=12.3 21, α(O)=3.0 5, α(P)=0.50 8, α(Q)=0.0040 7, α(N+)=16 3
    121.584 11/2+       66.80 2 M1+E20.86 3066α=66 20, α(L)=48 14, α(M)=13 4, α(N)=3.7 12, α(O)=0.9 3, α(P)=0.15 5, α(Q)=0.0027 6, α(N+)=4.7 15
    252.840 5/2+      198.1 3 E2 1.023α=1.023, α(K)=0.1475 21, α(L)=0.634 9, α(M)=0.178 3, α(N)=0.0494 7, α(O)=0.01203 17, α(P)=0.00205 3, α(Q)=1.83×10-5 3, α(N+)=0.0635 9
5/2+      252.82 3 M1+E20.16 32.25α=2.25, α(K)=1.76 3, α(L)=0.366 6, α(M)=0.0896 13, α(N)=0.0246 4, α(O)=0.00626 9, α(P)=0.001229 18, α(Q)=8.66×10-5 15, α(N+)=0.0322 5
    295.708 7/2+      240.89 4 M1(+E2)0.7 LT2.3α=2.3 4, α(K)=1.7 4, α(L)=0.399 25, α(M)=0.099 5, α(N)=0.0273 12, α(O)=0.0069 4, α(P)=0.00134 9, α(Q)=8.7×10-5 15, α(N+)=0.0356 16
7/2+      295.73 2 M1+E20.22 221.43α=1.43 15, α(K)=1.12 13, α(L)=0.233 14, α(M)=0.057 3, α(N)=0.0157 8, α(O)=0.00399 22, α(P)=0.00078 5, α(Q)=5.5×10-5 6, α(N+)=0.0205 11
    355.92 1/2+ 0.29 µs 2     103.1 1 E2 16.25B(E2)(W.u.)=0.107 8, α=16.25, α(L)=11.74 18, α(M)=3.32 5, α(N)=0.924 14, α(O)=0.224 4, α(P)=0.0372 6, α(Q)=0.0001572 23, α(N+)=1.185 18
    388.181 9/2- 0.450 ns 20      37.54 3 [E1] 1.80B(E1)(W.u.)=1.29E-6 10, α=1.80, α(L)=1.335 19, α(M)=0.342 5, α(N)=0.0923 13, α(O)=0.0217 3, α(P)=0.00329 5, α(Q)=9.24E-5 13, α(N+)=0.1174 17
9/2- 0.450 ns 20      92.51 2 [E1] 0.1711B(E1)(W.u.)=1.90E-6 12, α=0.1711, α(L)=0.1282 18, α(M)=0.0318 5, α(N)=0.00862 12, α(O)=0.00210 3, α(P)=0.000363 5, α(Q)=1.454E-5 21, α(N+)=0.01111 16
9/2- 0.450 ns 20     266.63 2 (E1) 0.0562B(E1)(W.u.)=1.69E-7 11, α=0.0562, α(K)=0.0439 7, α(L)=0.00921 13, α(M)=0.00225 4, α(N)=0.000613 9, α(O)=0.0001530 22, α(P)=2.84E-5 4, α(Q)=1.550E-6 22, α(N+)=0.000796 12
9/2- 0.450 ns 20     333.37 2 E1 0.0348B(E1)(W.u.)=1.73E-6 11, α=0.0348, α(K)=0.0274 4, α(L)=0.00553 8, α(M)=0.001347 19, α(N)=0.000367 6, α(O)=9.20E-5 13, α(P)=1.726E-5 25, α(Q)=9.91E-7 14, α(N+)=0.000478 7
9/2- 0.450 ns 20     388.17 2 E1 0.0254B(E1)(W.u.)=5.2E-6 3, α=0.0254, α(K)=0.0201 3, α(L)=0.00396 6, α(M)=0.000962 14, α(N)=0.000263 4, α(O)=6.59E-5 10, α(P)=1.244E-5 18, α(Q)=7.38E-7 11, α(N+)=0.000342 5
    442.918 11/2-       54.77 2 M1+E20.68 171.3×102α=1.3×102 4, α(L)=95 23, α(M)=26 7, α(N)=7.2 18, α(O)=1.8 5, α(P)=0.30 7, α(Q)=0.0056 6, α(N+)=9.3 23
    633.64 (3/2)-      380.8 1 E1 0.0264α=0.0264, α(K)=0.0209 3, α(L)=0.00413 6, α(M)=0.001003 14, α(N)=0.000274 4, α(O)=6.87×10-5 10, α(P)=1.296E-5 19, α(Q)=7.65E-7 11, α(N+)=0.000356 5
    661.53 5/2-      365.8 1 E1 0.0287α=0.0287, α(K)=0.0227 4, α(L)=0.00451 7, α(M)=0.001096 16, α(N)=0.000299 5, α(O)=7.50×10-5 11, α(P)=1.412E-5 20, α(Q)=8.27E-7 12, α(N+)=0.000389 6
5/2-      408.7 1 [E1] 0.0229α=0.0229, α(K)=0.0182 3, α(L)=0.00355 5, α(M)=0.000861 12, α(N)=0.000235 4, α(O)=5.90×10-5 9, α(P)=1.116E-5 16, α(Q)=6.69E-7 10, α(N+)=0.000306 5
    740.97 (1/2)+      385.0 1 M1 0.718α=0.718, α(K)=0.565 8, α(L)=0.1147 16, α(M)=0.0280 4, α(N)=0.00769 11, α(O)=0.00196 3, α(P)=0.000385 6, α(Q)=2.74×10-5 4, α(N+)=0.01006 14
    769.2 (3/2+)      350.5 1 M1 0.929α=0.929, α(K)=0.731 11, α(L)=0.1487 21, α(M)=0.0363 5, α(N)=0.00996 14, α(O)=0.00254 4, α(P)=0.000499 7, α(Q)=3.56×10-5 5, α(N+)=0.01304 19
(3/2+)      407.8 2 (M1) 0.613α=0.613, α(K)=0.483 7, α(L)=0.0979 14, α(M)=0.0239 4, α(N)=0.00656 10, α(O)=0.001671 24, α(P)=0.000329 5, α(Q)=2.34×10-5 4, α(N+)=0.00858 12

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.07/2+ 8423 y 74 
% α = 100
% SF = 6.1×10-7 9
μ=0.40 8 (1970Ab03,2005St24)
T1/2(SF)=1.4×1012 y 2, measured by 1985Dr10. Theoretical calculations of T1/21/2(SF): 9.5×1012 y (2005RoZS). Others: 1978Po09, 1990Bh02, 2005Re16.
E(level): T1/2(SF)=1.4×1012 y 2, measured by 1985Dr10. Theoretical calculations of T1/21/2(SF): 9.5×1012 y (2005RoZS). Others: 1978Po09, 1990Bh02, 2005Re16. 7/2[624] ROTATIONAL band.
     54.7899/2+ ≤ 0.10 ns E(level): 7/2[624] ROTATIONAL band.
    121.58411/2+   E(level): 7/2[624] ROTATIONAL band.
    197.413/2+   E(level): 7/2[624] ROTATIONAL band.
    252.8405/2+   E(level): 5/2[622] ROTATIONAL band.
    295.7087/2+   E(level): 5/2[622] ROTATIONAL band.
    350.669/2+   E(level): 5/2[622] ROTATIONAL band.
    355.921/2+ 0.29 µs 2  E(level): 1/2[631] ROTATIONAL band.
    361.4(3/2+)   E(level): 1/2[631] ROTATIONAL band.
    388.1819/2- 0.450 ns 20  E(level): 9/2[734] ROTATIONAL band.
    416.6111/2+   E(level): 5/2[622] ROTATIONAL band.
    418.7(5/2+)   E(level): 1/2[631] ROTATIONAL band.
    431(7/2+)   E(level): 1/2[631] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    442.91811/2-   E(level): 9/2[734] ROTATIONAL band.
    497.613/2+   E(level): 5/2[622] ROTATIONAL band.
    508.8713/2-   E(level): 9/2[734] ROTATIONAL band.
    532(9/2+)   E(level): 1/2[631] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    554.7(11/2+)   E(level): 1/2[631] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    587.9(15/2-)   E(level): 9/2[734] ROTATIONAL band.
    597.6(15/2+)   E(level): 5/2[622] ROTATIONAL band.
    633.64(3/2)-   E(level): K=3/2 band.
    643.64(7/2-)   E(level): 7/2[743] ROTATIONAL band.
    660   E(level): From 244Cm(d,p), 246Cm(d,t).
    661.535/2-   E(level): K=3/2 band.
    672(17/2-)   E(level): 9/2[734] ROTATIONAL band.
E(level)Jπ(level)T1/2(level)Comments
    701.817(9/2-)   E(level): 7/2[743] ROTATIONAL band.
    722(7/2+)   E(level): 7/2[613] ROTATIONAL band.
    740.97(1/2)+   E(level): 1/2[620] ROTATIONAL band.
    769.2(3/2+)   E(level): 1/2[620] ROTATIONAL band.
    774.3(11/2-)   E(level): 7/2[743] ROTATIONAL band.
    785.23(9/2+)   E(level): 7/2[613] ROTATIONAL band.
    791(5/2+)   E(level): 1/2[620] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    852.59(11/2+)   E(level): 7/2[613] ROTATIONAL band.
    856(7/2+)   E(level): 1/2[620] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    866(13/2-)   E(level): 7/2[743] ROTATIONAL band.
    890.61(9/2+)   E(level): 1/2[620] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    906.6   E(level): From 244Cm(d,p), 246Cm(d,t).
    913(1/2-)   E(level): 1/2[501] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    942   E(level): From 244Cm(d,p), 246Cm(d,t).
    956(3/2-,5/2-)   E(level): 1/2[501] ROTATIONAL band. From 244Cm(d,p), 246Cm(d,t).
    980   E(level): From 244Cm(d,p), 246Cm(d,t).
    995   E(level): From 244Cm(d,p), 246Cm(d,t).
   1017   E(level): From 244Cm(d,p), 246Cm(d,t).
   1042   E(level): From 244Cm(d,p), 246Cm(d,t).
   1050   E(level): From 244Cm(d,p), 246Cm(d,t).
   1054.7   E(level): From 244Cm(d,p), 246Cm(d,t).
   1083   E(level): From 244Cm(d,p), 246Cm(d,t).
   1102.3   E(level): From 244Cm(d,p), 246Cm(d,t).
   1259   E(level): From 244Cm(d,p), 246Cm(d,t).
   1271   E(level): From 244Cm(d,p), 246Cm(d,t).
E(level)Jπ(level)T1/2(level)Comments
   1473   E(level): From 244Cm(d,p), 246Cm(d,t).
      2.1E+3 13.2 ns 18 
% SF ≤ 100
E(secondary minimum)=2.4 MeV 3 was deduced from reaction threshold (1971Br39). Other fission-barrier parameters were deduced from fit to experimental excitation functions for the 244Pu(α,3n) reaction by using a statistical model.
E(level): E(secondary minimum)=2.4 MeV 3 was deduced from reaction threshold (1971Br39). Other fission-barrier parameters were deduced from fit to experimental excitation functions for the 244Pu(α,3n) reaction by using a statistical model.

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Additional Gamma Comments:

E(level)E(gamma)Comments
     54.789     54.77E(γ): From 249Cf α decay (1997Ar31).
    197.4     75.8E(γ): from level energies; Eγ=76 1 was measured in 249Cf α decay.
    416.61     65.95E(γ): Multiply placed
    508.87     65.95E(γ): Multiply placed

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