ADOPTED LEVELS, GAMMAS for 76Ni

Authors: A.R. Farhan, B. Singh, A.K. Jain |  Citation: ENSDF |  Cutoff date: 30-NOV-2007 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=9.4×103 keV SYS(n)= 5.4×103 keV SYS(p)= 1.98×104 keV SYQ(α)= -1.59×104 keV SY
Reference: 2012WA38

References:
  A  76Ni IT decay (0.59 μs) 

General Comments:

2005Ho08: fragmentation of 86Kr34+ beam at 140 MeV/nucleon on Be target at Coupled cyclotron facility at NSCL, A1900 fragment separator. Measured half-life.

1998Am04: 76Ni produced by fragmentation of 86Kr beam at 500 MeV/nucleon and identified by mass and time-of-flight measurements at GSI facility.

1995En07: 76Ni production in 9Be(238U,F) E=750 MeV/nucleon; fragment recoil separator at GSI facility, time-of-flight and energy loss measurements of fission products. Cross section for production=14 nb

1987Ar21: some evidence of 76Ni production from mass separation of fission products from 235U(n,F)

Analysis of levels in 76Ni: 2002Gr16

Q-value: Note: Current evaluation has used the following Q record 9370 syst 5780 syst 19400 syst -15740 syst 2003Au03

Q-value: ΔQ-=900, ΔSN=990, ΔSP=ΔQA=1210 (syst,2003Au03)

Q-value: Q(β-n)=4440 1330 (syst,2003Au03)










E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)Final Levels
     0A 0+ 0.238 s +15-18 
% β- = 100
% β-n = ?
     
   992 2 A (2+)     992 2 
  100

     0
0+
  1922 3 A (4+)     930 2 
  100

   992
(2+)
  2276 4 A (6+)     354 2 
  100

  1922
(4+)
  2420 4 A (8+) 0.59 µs +18-11 
% IT = 100
  144 2 
  100
[E2]
  2276
(6+)

Jπ(level): Comparisons with shell-model calculations (2005Ma59)

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Band Transitions:

E(level)
(keV)
Jπ(level) T1/2(level)E(γ)I(γ)M(γ)Final Levels
Band 1 - Yrast band
   992 2  (2+)        
  1922 3  (4+)     930 2 
  100

   992
(2+)
  2276 4  (6+)     354 2 
  100

  1922
(4+)
  2420 4  (8+) 0.59 µs +18-11 
% IT = 100
  144 2 
  100
[E2]
  2276
(6+)

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Additional Gamma Data:













E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityConversion
Coefficient
Additional Data
  2420 (8+) 0.59 µs +18-11 
% IT = 100
  144 2 [E2]0.143B(E2)(W.u.)=0.71 +15-23, α=0.143 8, α(K)=0.127 8, α(L)=0.0136 8, α(M)=0.00190 11, α(N)=7.1E-5 4, α(N+)=7.1E-5 4

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 0.238 s +15-18 
% β- = 100
% β-n = ?
Calculated %β-n=22, %β-2n=0 (1997Mo25).
   992(2+)   E(level): Yrast band.
  1922(4+)   E(level): Yrast band.
  2276(6+)   E(level): Yrast band.
  2420(8+) 0.59 µs +18-11 
% IT = 100
Configuration=νg9/22 (2004Sa13).
E(level): Yrast band.

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