ADOPTED LEVELS, GAMMAS for 68Ni

Author: E.A. Mccutchan |  Citation: Nucl. Data Sheets 113, 1735 (2012) |  Cutoff date: 1-Mar-2012 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=2103 keV 4S(n)= 7792 keV 5S(p)= 15431 keV 7Q(α)= -10919 keV 6
Reference: 2012WA38

References:
  A  68Co β- decay (0.20 S)  B  68Co β- decay (1.6 S)
  C  68Ni IT decay (0.86 MS)  D  Coulomb Excitation
  E  70Zn(14C,16O)  F  70Zn(14C,16OG)
  G  130Te(64Ni,xγ),208Pb(64Ni,xγ)  H  198Pt(70Zn,xγ)
  I  NI(86Kr,xγ),58Ni(70Zn,xγ) 

General Comments:

Levels: In addition to the levels given here, peaks are reported in 70Zn(14C,16O) at 2700 40, with L=0,2, at 3280 50 with L=2,4, and at 3450 50 and 4120 50. The 70Zn(14C,16O) level at 2200 30, with L=2 appears to correspond to the 2034 level but the large energy difference makes it difficult to give unique associations for any of the other peaks.

Q-value: Note: Current evaluation has used the following Q record

Q-value: S(2n)=13600 3; S(2p)=27974 5; Q(β-n) = -4216 3 (2011AuZZ)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0.0ABCDEFGHI 0+ 29 s 2 
% β- = 100
     
  1770 30     EF  I 0+ 270 ns 5    1770
 
E0
     0.0
0+
  2034.08 16 ABCDE GHI 2+ 0.31 ps 5    2033.2 2 
  100
[E2]
     0.0
0+
  2511.9 3  B        (0+) < 15 ns    477.8 2 
  2511.9?
  100 5 
 
[E2]
(E0)
  2034.08
     0.0
2+
0+
  2743.82 16  B  E     (2)+      708.9 2 
  2744.6 2 
   41 3 
  100 5 

[E2]
  2034.08
     0.0
2+
0+
  2849.1 3 ABC   GHI 5- 0.86 ms 5 
% IT = 100
   815.0 2 
  100
E3
  2034.08
2+
  3120.9 3 A              271.9 2 
  100

  2849.1
5-
  3149.2 3  B    GH  (4+)     1115.1 2 
  100
[E2]
  2034.08
2+
  3444.4 3 A      H  (6-,7-)      323.6 2 
   595.2 2 
  100.0 19 
   83.8 19 


  3120.9
  2849.1

5-
  3543.4 3 ? B             694.3 2 ?
  100

  2849.1
5-
  3557.9 3 A      H  (6-)      113.5 2 
   708.9 2 
   43.1 11 
  100.0 26 
(M1)

  3444.4
  2849.1
(6-,7-)
5-
  3935.3 5 A      H  (7)      377.4 5 
  100
D
  3557.9
(6-)
  3988.5 3 ? B            1139.4 2 ?
  100

  2849.1
5-
  4000.7 7        H  (6+)      851.2
  1151.8
   67
  100
[E2]

  3149.2
  2849.1
(4+)
5-
  4026.7 3  B        (1,2)     1514.8 2 
  100

  2511.9
(0+)
  4165.8 3  B        (0,1,2)     1422.0 2 
  100

  2743.82
(2)+
  4210.0 7        H  (8+) 23 ns 1     209.3
   274.7
   652.0
   89
  100
   15
E2
D

  4000.7
  3935.3
  3557.9
(6+)
(7)
(6-)
  5513.2 20  B        (0+,1+,2+)     3479 2 
  100

  2034.08
2+
  5550.2 20  B        (0+,1+,2+)     3516 2 
  100

  2034.08
2+
  5775.2 20  B        (0+,1+,2+)     3741 2 
  100

  2034.08
2+

E(level): From least-squares fit to Eγ’s by evaluator; ΔE=1 keV assumed when not given.

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - νg29/2νp-21/2 configuration.
     0.0 0+ 29 s 2 
% β- = 100
     
  2034.08 16  2+ 0.31 ps 5    2033.2 2 
  100
[E2]
     0.0
0+
  3149.2 3  (4+)     1115.1 2 
  100
[E2]
  2034.08
2+
  4000.7 7  (6+)      851.2
  1151.8
   67
  100
[E2]

  3149.2
  2849.1
(4+)
5-
  4210.0 7  (8+) 23 ns 1     209.3
   274.7
   652.0
   89
  100
   15
E2
D

  4000.7
  3935.3
  3557.9
(6+)
(7)
(6-)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  2034.08 2+ 0.31 ps 5    2033.2 2 [E2]0.000383B(E2)(W.u.)=3.2 7, α=0.000383 6, α(K)=4.96E-5 7, α(L)=4.81E-6 7, α(M)=6.77E-7 10, α(N+)=0.000328 5
  2511.9 (0+) < 15 ns    477.8 2 [E2]0.00191α=0.00191 3, α(K)=0.001717 25, α(L)=0.0001711 24, α(M)=2.40×10-5 4, α(N+)=1.005E-6 1
  2743.82 (2)+     2744.6 2 [E2]0.000700α=0.000700 10, α(K)=2.95×10-5 5, α(L)=2.85E-6 4, α(M)=4.01E-7 6, α(N+)=0.000668 10
  2849.1 5- 0.86 ms 5 
% IT = 100
   815.0 2 E30.000928B(E3)(W.u.)=0.0215 13, α=0.000928 13, α(K)=0.000832 12, α(L)=8.36E-5 12, α(M)=1.176E-5 17, α(N+)=4.92E-7
  3149.2 (4+)     1115.1 2 [E2]0.000188α=0.000188 3, α(K)=0.0001683 24, α(L)=1.645×10-5 23, α(M)=2.32E-6 4, α(N+)=1.431E-6
  3557.9 (6-)      113.5 2 (M1)0.0334α=0.0334, α(K)=0.0299 5, α(L)=0.00304 5, α(M)=0.000428 7, α(N+)=1.80×10-5 3
  4000.7 (6+)      851.2[E2]0.000360α=0.000360 5, α(K)=0.000324 5, α(L)=3.18×10-5 5, α(M)=4.48E-6 7, α(N+)=1.91E-7 3
  4210.0 (8+) 23 ns 1     209.3E20.0347B(E2)(W.u.)=1.57 9, α=0.0347, α(K)=0.0311 5, α(L)=0.00322 5, α(M)=0.000450 7, α(N+)=1.767E-5 25
(8+) 23 ns 1     274.7D0.00246α=0.00246 4

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.00+ 29 s 2 
% β- = 100
E(level): νg29/2νp-21/2 configuration.
  2034.082+ 0.31 ps 5  XREF: E(2200).
E(level): νg29/2νp-21/2 configuration.
  2511.9(0+) < 15 ns E(level): From 68Co β- decay (0.20 s).
Jπ(level): Low-lying J=1 states are not expected from the available neutron fp orbitals. α strong γ to the g.s. indicates Jπ=2+ for the 2744 state. Lack of a similar transition from the 2512 state and the possible E0 transition to the g.s. supports a Jπ=0+ assignment.
  2743.82(2)+   XREF: E(2700).
E(level): From 68Co β- decay (0.20 s).
Jπ(level): Low-lying J=1 states are not expected from the available neutron fp orbitals. α strong γ to the g.s. indicates Jπ=2+ for the 2744 state. Lack of a similar transition from the 2512 state and the possible E0 transition to the g.s. supports a Jπ=0+ assignment.
  3149.2(4+)   E(level): νg29/2νp-21/2 configuration.
  3444.4(6-,7-)   Member of νf-17/2νg+19/2 multiplet (2000Mu10). α simple δ interaction predicts Jπ=7-.
  3557.9(6-)   Member of νf-17/2νg+19/2 multiplet (2000Mu10). α simple δ interaction predicts Jπ=6-.
  4000.7(6+)   E(level): νg29/2νp-21/2 configuration.
  4210.0(8+) 23 ns 1  E(level): νg29/2νp-21/2 configuration.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  1770  1770E(γ): from (14C,16Oγ)
M(γ): from conversion electrons and pair production in (14C,16Oγ)
  2743.82  2744.6M(γ): strong γ ray to 0+ g.s.; level scheme
  2849.1   815.0E(γ): From 68Co β- decay (0.20 s).
I(γ): From 68Co β- decay (0.20 s).
M(γ): from comparison with RUL.
  3120.9   271.9E(γ): From 68Co β- decay (0.20 s).
I(γ): From 68Co β- decay (0.20 s).
  3149.2  1115.1M(γ): ΔJ|<2 since no retardation observed for this cascade in 198Pt(70Zn,Xγ)
  3444.4   323.6E(γ): From 68Co β- decay (0.20 s).
I(γ): From 68Co β- decay (0.20 s).
   595.2E(γ): From 68Co β- decay (0.20 s).
I(γ): From 68Co β- decay (0.20 s).
  3557.9   113.5E(γ): From 68Co β- decay (0.20 s).
I(γ): From 68Co β- decay (0.20 s).
M(γ): stretched dipole from γ-ray anisotropy in 198Pt(70Zn,Xγ); Δπ=no from level scheme.
   708.9E(γ): From 68Co β- decay (0.20 s).
I(γ): From 68Co β- decay (0.20 s).
  3935.3   377.4E(γ): From 68Co β- decay (0.20 s).
I(γ): From 68Co β- decay (0.20 s).
M(γ): stretched dipole from γ-ray anisotropy in 198Pt(70Zn,Xγ)
  4000.7   851.2E(γ): From 198Pt(70Zn,Xγ)
I(γ): From 198Pt(70Zn,Xγ)
M(γ): ΔJ|<2 since no retardation observed for this cascade in 198Pt(70Zn,Xγ)
  1151.8E(γ): From 198Pt(70Zn,Xγ)
I(γ): From 198Pt(70Zn,Xγ)
  4210.0   209.3E(γ): From 198Pt(70Zn,Xγ)
I(γ): From 198Pt(70Zn,Xγ)
M(γ): stretched quadrupole from γ-ray anisotropy in 198Pt(70Zn,Xγ); M2 is excluded by comparison to RUL
   274.7E(γ): From 198Pt(70Zn,Xγ)
I(γ): From 198Pt(70Zn,Xγ)
M(γ): stretched dipole from γ-ray anisotropy in 198Pt(70Zn,Xγ)
   652.0E(γ): From 198Pt(70Zn,Xγ)
I(γ): From 198Pt(70Zn,Xγ)

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