ADOPTED LEVELS, GAMMAS for 61Co

Authors: Kazimierz Zuber, Balraj Singh |  Citation: Nucl. Data Sheets 125, 1 (2015) |  Cutoff date: 25-Jan-2015 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1323.7 keV 8S(n)= 9319.2 keV 8S(p)= 8774 keV 3Q(α)= -7836.4 keV 17
Reference: 2012WA38

References:
  A  61Fe β- decay (5.98 M)  B  16O(48Ca,p2nγ)
  C  59Co(t,p)  D  60Co(n,γ),(n,n):Resonances
  E  62Ni(d,3He)  F  62Ni(t,α)
  G  64Ni(p,α)  H  64Ni(p,αγ)
  I  238U(70Zn,xγ) 

General Comments:

61Co produced and identified in bombardment of 61Ni with fast fast neutrons followed by chemical separation (Parmley and Moyer: Phys Rev 72, 82 (1947)). Later studies by 1948Ku01 and 1949Pa01 confirmed the isotopic identification

2011Sr04: shell-model calculations of levels, J, π, B(E2) using GXPF1A, KB3G and fpg effective interactions

Q-value: S(2n)=16811.1 8, S(2p)=21950.2 25 (2012Wa38)










E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0.0ABC EFGHI 7/2- 1.649 h 5 
% β- = 100
     
  1027.48 8 ABC EFGH  3/2-     1027.42 11 
  100
[E2]
     0.0
7/2-
  1205.09 9 A C  FGH  (3/2)-      177.61 12 
  1205.07 12 
    4.6 4 
  100


  1027.48
     0.0
3/2-
7/2-
  1272 25      F           
  1285.54 23 ABC  FGHI (9/2)- 0.55 ps 14    1285.5 4 
  100

     0.0
7/2-
  1325.40 10 AB   FG   (1/2-)      120.34 12 
   297.90 7 
   23.9 18 
  100 8 


  1205.09
  1027.48
(3/2)-
3/2-
  1618.85 17 A   E GH  5/2-,7/2-      333.0 4 
  1618.9 2 
   61 10 
  100 12 


  1285.54
     0.0
(9/2)-
7/2-
  1631 7   C  F    (5/2,7/2)-        
  1645.87 12 A     GH  (3/2-,5/2)      440.5 4 
   618.40 16 
  1645.95 16 
    3.1 7 
   13.4 11 
  100 5 



  1205.09
  1027.48
     0.0
(3/2)-
3/2-
7/2-
  1664.3 4  B    G I (11/2-) 7 ps +7-2     379.1 5 
  1663.6 5 
   25 4 
  100 15 

(E2)
  1285.54
     0.0
(9/2)-
7/2-
  1674 7   C  FG   (7/2)-        
  1889.1 3 A C EFGH  (5/2,7/2)-      244
   603.3 5 
  1889.0 4 
   16 6 
   41 17 
  100 20 



  1645.87
  1285.54
     0.0
(3/2-,5/2)
(9/2)-
7/2-
  1953.19 16 A C EFGH  1/2-,3/2-      748.10 18 
   925.6 3 
  100 10 
   42 5 


  1205.09
  1027.48
(3/2)-
3/2-
  2011.49 15 A C   G   (3/2,5/2)-      686.0 3 
   806.3 4 
   984.1 4 
  2011.6 2 
    9.1 18 
    4.4 11 
   14 3 
  100 7 




  1325.40
  1205.09
  1027.48
     0.0
(1/2-)
(3/2)-
3/2-
7/2-
  2230.9 3 A C    H  (5/2,7/2)-      945.4 5 
  1027?
  1205?
  2230.8 4 
  100 30 
 
 
  100 16 




  1285.54
  1205.09
  1027.48
     0.0
(9/2)-
(3/2)-
3/2-
7/2-
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  2238 5     EFG   1/2+        
  2302.99 17 A C E GH  1/2-,3/2-      349.7 3 
   657.3 4 
   978?
  1097.8 2 
  1275
   23 6 
   32 14 
   11 6 
  100 9 
   88 19 





  1953.19
  1645.87
  1325.40
  1205.09
  1027.48
1/2-,3/2-
(3/2-,5/2)
(1/2-)
(3/2)-
3/2-
  2338.9 6  B        (11/2-) 1.7 ps +4-3    1053.9 7 
  100
(M1)
  1285.54
(9/2)-
  2345.5 8   C EFG   5/2-,7/2-        
  2373.8 11   C   G   (1/2:15/2)-        
  2374.2 6  B      I (13/2-)      709.8 5 
  100
(D)
  1664.3
(11/2-)
  2431.4 5 A C   G   (3/2,5/2)-      542.6 5 ?
  1403.9 5 
   60 30 
  100 50 


  1889.1
  1027.48
(5/2,7/2)-
3/2-
  2448 5     EF    5/2-,7/2-        
  2484.5 4 A C   G   (3/2,5/2)-     2484.4 4 
  100

     0.0
7/2-
  2499 5     E     (3/2+,5/2+)        
  2558.6 8       G   (3/2+)        
  2571.6 9   C EFG   3/2+,5/2+        
  2642.3 8   C   G   (3/2:11/2)-        
  2706.7 11   C   G   (3/2:11/2)-        
  2726.5 10       G          
  2754.5 4 A C   G   (3/2-,5/2)     2754.4 4 
  100

     0.0
7/2-
  2780.1 10       G          
  2864.38 18 A C   G   (3/2,5/2)-      561.4 5 ?
  1538.8 3 
  1659.3 2 
  1837.2 6 
    7 4 
   35 7 
  100 12 
   18 4 




  2302.99
  1325.40
  1205.09
  1027.48
1/2-,3/2-
(1/2-)
(3/2)-
3/2-
  2893 5     EF    5/2-,7/2-        
  2920.1 5 A     G   (3/2-,5/2)     2920.0 5 
  100

     0.0
7/2-
  2952.9 10   C   G   (3/2:11/2)-        
  2979.9 10       G          
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3000.27 20 A C   G   (3/2,5/2)-      696.9 4 
   769.4 5 
   989.2 4 
  1381.4 3 
  1972.7 5 
   19 5 
   26 7 
  100 22 
   66 8 
   10 3 





  2302.99
  2230.9
  2011.49
  1618.85
  1027.48
1/2-,3/2-
(5/2,7/2)-
(3/2,5/2)-
5/2-,7/2-
3/2-
  3026 5     E     3/2+,5/2+        
  3028 25      F    5/2-,7/2-        
  3077 4   C       (3/2:11/2)-        
  3104.4 5 A     G   (1/2,3/2,5/2)     1899.3 5 
  100

  1205.09
(3/2)-
  3116.7 11       G   (3/2+,5/2+)        
  3126.7 6  B    G I (15/2-)      752.4 5 
  1462.4 8 
  100 20 
   24.7 11 
(D)
(Q)
  2374.2
  1664.3
(13/2-)
(11/2-)
  3130 4   C       (3/2:11/2)-        
  3151.7 11      FG          
  3176.0 9       G          
  3191.1 6 A     G   (3/2-,5/2)     3191.0 6 
  100

     0.0
7/2-
  3197 14   C       7/2-        
  3204.7 3 A    FG   (3/2-,5/2-)     1879.4 4 
  1999.8 8 
  2177.1 7 
  3204.2 6 
  100 14 
   50 17 
   80 17 
   17 4 




  1325.40
  1205.09
  1027.48
     0.0
(1/2-)
(3/2)-
3/2-
7/2-
  3218 5     E     3/2+,5/2+        
  3239.2 6 A     G   (3/2-,5/2)     3239.1 6 
  100

     0.0
7/2-
  3252 9   C       7/2-        
  3349.4 11       G          
  3357.0 13   C   G   (1/2:13/2)        
  3365.0 7 A     G   (3/2-,5/2)     3364.9 7 
  100

     0.0
7/2-
  3384.3 11       G          
  3396.9 12      FG          
  3409.7 11       G          
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3417 4   C E     (9/2-,11/2-)        
  3428.4 11       G   (9/2-,11/2-)        
  3445.1 12   C  FG   7/2-        
  3470.8 10       G   (3/2,5/2)        
  3471.7 7  B      I (13/2-)     1133.3 7 
  1806.9 10 
   25.2 10 
  100 12 
(D)
(D)
  2338.9
  1664.3
(11/2-)
(11/2-)
  3484.8 11   C   G   (3/2:11/2)-        
  3492.5 14     E G   5/2-,7/2-        
  3513.6 11   C   G   7/2-        
  3535.6 10   C   G   (5/2,7/2)        
  3564.7 13       G          
  3575.3 13   C   G   (3/2:11/2)-        
  3599.6 14     E G   (1/2+,5/2-,7/2-)        
  3609.4 13   C   G   (3/2:13/2)        
  3654.0 11       G   (3/2:11/2)-        
  3658.0 7  B      I (15/2)-      186.4 5 
   531.2 5 
  100 12 
   41 9 
(D)
(D)
  3471.7
  3126.7
(13/2-)
(15/2-)
  3660 4   C  F    (3/2:17/2)+        
  3691.5 10   C   G   (3/2:13/2)+        
  3700.2 15   C   G   (1/2:15/2)-        
  3727.8 15   C   G   (5/2:11/2)-        
  3752.6 12       G   (3/2:11/2)-        
  3758.2 15 ?      G          
  3775.3 11   C  FG   (5/2,7/2)        
  3806.3 13     E G   5/2-,7/2-        
  3814.6 15   C   G   (3/2:11/2)        
  3827.3 14       G          
  3871.1 12   C  FG   3/2+,5/2+        
  3889.8 13     E G   3/2+,5/2+        
  3905.6 12       G          
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  3915.7 12   C   G   (3/2:13/2)+        
  3924.4 13       G          
  3937.1 12       G          
  3965 25   C  F    (5/2-,7/2-)        
  3987 7   C              
  4002 5     E     (1/2+,5/2-,7/2-)        
  4071 6   C              
  4093.8 8  B      I (17/2-) 0.76 ps 21     435.8 5 
  100
(D)
  3658.0
(15/2)-
  4152 7   C E     (7/2-)        
  4211 6   C       (3/2:17/2)+        
  4267 5     E     (1/2+,5/2-,7/2-)        
  4282 4   C       (5/2:11/2)-        
  4349 6   C       7/2-        
  4382 5     E     3/2+,5/2+        
  4389 3   C       7/2-        
  4455 5     E     3/2+,5/2+        
  4499 15   C   G   7/2-        
  4534 6   C       (5/2:11/2)-        
  4622 5   C       (3/2:11/2)-        
  4656 5     E     3/2+,5/2+        
  4671 7   C       (5/2:11/2)-        
  4753 5     E G   3/2+,5/2+        
  4766 5   C       (3/2:11/2)-        
  4802.3 17  B        (19/2-)      708.5 15 
  100
(D)
  4093.8
(17/2-)
  4838 6   C       (5/2:11/2)-        
  4911 5   C       (5/2:11/2)-        
  4960 5   C   G   (5/2)+        
  4990 5     E     3/2+,5/2+        
  5061 5     E     (3/2,5/2,7/2)        
  5081 12   C       (3/2:11/2)-        
E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
  5150 5     E     (3/2,5/2,7/2)        
  5164 5   C       +        
  5214 5   C       (3/2:13/2)        
  5271 4   C       (3/2:13/2)+        
  5321 6   C       (5/2,7/2,9/2)        
  5388 6   C       (3/2:11/2)-        
  9320.01   D      9/2+,11/2+        
  9320.91   D      9/2+,11/2+        
  9321.19   D      9/2+,11/2+        
  9321.66   D      9/2+,11/2+        

E(level): Level energy with ΔE<1 keV are deduced from least-square fit to the Adopted Gammas. The others are from (p,α) or weighted averages from (t,p) and (d,3He). Values from (t,α) are not used due to less precision in this work.

Jπ(level): When L-transfer arguments are used, the target Jπ=0+ for (d,3He), (t,α) and (p,α) reactions. Target Jπ=7/2- for (t,p) reaction, which gives negative parity for even L transfer and positive parity for odd L transfer, with several Jπ values possible for L|>1; for L=0, Jπ=7/2-, assuming the two neutrons are in S=0 state. For high-spin (J>9/2), the assignments are based on γ(θ) data for selected transitions, yrast nature of population of states, decay pattern and systematics. No separate arguments are given for the high-spin states

T1/2(level): From DSAM in (48Ca,p2nγ), unless otherwise stated. Because of incomplete knowledge of the level scheme, the feeding γ transitions are not known. Hence, the value given is considered as an apparent half-life, and as a lower limit

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Band Transitions:

E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - γ cascade based on 11/2-
  1664.3 4  (11/2-) 7 ps +7-2       
  2374.2 6  (13/2-)      709.8 5 
  100
(D)
  1664.3
(11/2-)
  3126.7 6  (15/2-)      752.4 5 
  1462.4 8 
  100 20 
   24.7 11 
(D)
(Q)
  2374.2
  1664.3
(13/2-)
(11/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 2 - γ cascade based on (15/2-)
  3658.0 7  (15/2)-        
  4093.8 8  (17/2-) 0.76 ps 21     435.8 5 
  100
(D)
  3658.0
(15/2)-
  4802.3 17  (19/2-)      708.5 15 
  100
(D)
  4093.8
(17/2-)
E(level)
(keV)		Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 3 - γ cascade based on 9/2-
  1285.54 23  (9/2)- 0.55 ps 14       
  2338.9 6  (11/2-) 1.7 ps +4-3    1053.9 7 
  100
(M1)
  1285.54
(9/2)-
  3471.7 7  (13/2-)     1133.3 7 
  1806.9 10 
   25.2 10 
  100 12 
(D)
(D)
  2338.9
  1664.3
(11/2-)
(11/2-)

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Additional Gamma Data:











E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityAdditional Data
  1027.48 3/2-     1027.42 11 [E2]B(E2)(W.u.)>0.00035
  1664.3 (11/2-) 7 ps +7-2    1663.6 5 (E2)B(E2)(W.u.)=0.36 +14-18
  2338.9 (11/2-) 1.7 ps +4-3    1053.9 7 (M1)B(M1)(W.u.)=0.0111 23

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  1027.483/2-   XREF: C(1036)F(1031).
  1205.09(3/2)-   XREF: F(1210).
  1285.54(9/2)- 0.55 ps 14  XREF: F(1287).
E(level): γ cascade based on 9/2-.
  1325.40(1/2-)   XREF: F(1338).
  1631(5/2,7/2)-   XREF: F(1635).
  1664.3(11/2-) 7 ps +7-2  E(level): γ cascade based on 11/2-.
  1674(7/2)-   XREF: F(1682).
  1889.1(5/2,7/2)-   XREF: C(1891)F(1903)H(1891).
  1953.191/2-,3/2-   XREF: F(1971).
  2302.991/2-,3/2-   XREF: E(2313).
  2338.9(11/2-) 1.7 ps +4-3  E(level): γ cascade based on 9/2-.
  2345.55/2-,7/2-   XREF: E(2354)F(2368).
  2373.8(1/2:15/2)-   XREF: C(2385).
  2374.2(13/2-)   E(level): γ cascade based on 11/2-.
  2431.4(3/2,5/2)-   E(level): Possible doublet.
  24485/2-,7/2-   XREF: F(2459).
  2484.5(3/2,5/2)-   XREF: C(2479).
  2571.63/2+,5/2+   XREF: F(2583).
  2642.3(3/2:11/2)-   XREF: C(2649).
  2706.7(3/2:11/2)-   XREF: C(2713).
  2754.5(3/2-,5/2)   XREF: C(2760).
  3126.7(15/2-)   E(level): γ cascade based on 11/2-.
  3151.7   XREF: F(3163).
  3417(9/2-,11/2-)   XREF: E(3421).
  3445.17/2-   XREF: F(3467).
E(level)Jπ(level)T1/2(level)Comments
  3471.7(13/2-)   E(level): γ cascade based on 9/2-.
  3658.0(15/2)-   E(level): γ cascade based on (15/2-).
  3700.2(1/2:15/2)-   XREF: C(3713).
  3727.8(5/2:11/2)-   XREF: C(3732).
  3775.3(5/2,7/2)   XREF: F(3782).
E(level): Possible doublet.
  3965(5/2-,7/2-)   XREF: F(3970).
  4071   E(level): Possible doublet.
  4093.8(17/2-) 0.76 ps 21  E(level): γ cascade based on (15/2-).
  4152(7/2-)   XREF: E(4159).
  44997/2-   XREF: γ(4510).
  47533/2+,5/2+   XREF: γ(4730).
  4802.3(19/2-)   E(level): γ cascade based on (15/2-).
  5214(3/2:13/2)   E(level): Possible doublet.
  9320.019/2+,11/2+   Jπ(level): S-wave neutron capture in 60Cu g.s., Jπ=5+.
  9320.919/2+,11/2+   Jπ(level): S-wave neutron capture in 60Cu g.s., Jπ=5+.
  9321.199/2+,11/2+   Jπ(level): S-wave neutron capture in 60Cu g.s., Jπ=5+.
  9321.669/2+,11/2+   Jπ(level): S-wave neutron capture in 60Cu g.s., Jπ=5+.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  1285.54  1285.5E(γ): weighted average of 1285.7 3 in β- decay, 1284.5 6 in (48Ca,p2nγ) and 1286.4 9 in (70Zn,Xγ)
  1889.1   244E(γ): From 64Ni(p,αγ). Iγ(245γ)/Iγ(1889γ) adopted. Note Iγ(603γ)/Iγ(1889γ)=0.84 21 in (p,αγ)
I(γ): From 64Ni(p,αγ). Iγ(245γ)/Iγ(1889γ) adopted. Note Iγ(603γ)/Iγ(1889γ)=0.84 21 in (p,αγ)
  2230.9  1027E(γ): See comment in 64Ni(p,αγ).
  1205E(γ): See comment in 64Ni(p,αγ).
  2338.9  1053.9M(γ): From γ(θ) in 16O(48Ca,p2n)
  2374.2   709.8M(γ): From γ(θ) in 16O(48Ca,p2n)
  3126.7   752.4M(γ): From γ(θ) in 16O(48Ca,p2n)
  1462.4M(γ): From γ(θ) in 16O(48Ca,p2n)
  3471.7  1133.3M(γ): From γ(θ) in 16O(48Ca,p2n)
  1806.9M(γ): From γ(θ) in 16O(48Ca,p2n)
  3658.0   186.4M(γ): From γ(θ) in 16O(48Ca,p2n)
   531.2M(γ): γ(θ) consistent with ΔJ=0, dipole. From γ(θ) in 16O(48Ca,p2n)
  4093.8   435.8M(γ): From γ(θ) in 16O(48Ca,p2n)
  4802.3   708.5M(γ): From γ(θ) in 16O(48Ca,p2n)

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