ADOPTED LEVELS for 78Ni

Authors: Ameenah R. Farhan, Balraj Singh |  Citation: Nucl. Data Sheets 110, 1917 (2009) |  Cutoff date: 30-Jun-2009 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1.04×104 keV SYS(n)= 5.5×103 keV SYQ(α)= -1.73×104 keV SY
Reference: 2012WA38

General Comments:

Being a doubly magic (Z=28, n=50) nucleus, 78Ni is of major astrophysical significance in the synthesis of heavy elements.

Isotopic identification and production:

1995En07, 1997Be70 (also 1997Be12): isotopic identification and production in reaction: 9Be(238U,F) E=750 MeV/nucleon; measured production σ, fragment separator using magnetic rigidity, energy deposit, trajectory and time-of-flight techniques

2002Kr10: 238U(p,F) E=30 MeV. Measured production cross section, mass separator and laser ionization

2005Ho08 (also 2007Sc29,2004St28,2005Sc28): 9Be(86Kr,X) E=140 MeV/nucleon; fully-ionized 86Kr beam, A1900 fragment separator at NSCL facility. Detected β particles correlated with implanted nuclei in Si detectors. α total of 11 events was assigned to 78Ni with a corresponding cross section of 0.02 pb 1. Measured half-life of 78Ni

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

Q-value: Q(β-) and S(n) from 2009AuZZ; S(p) and Q(α) from 1997Mo25

Q-value: ΔQ(β-)=ΔS(n)=950 (2009AuZZ). Q(β-n)=6100 950, s(2n)=8660 950 (syst,2009AuZZ)

Q-value: Values in 2003Au03: Q(β-)=10450 1170, S(n)=5620 1210, s(2n)=8830 1420, Q(β-n)=6210 1170; all from systematics





E(level)
(keV)
Jπ(level) T1/2(level)
  0.0 0+ 0.11 s +10-6 
% β- = 100
% β-n = ?

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0.00+ 0.11 s +10-6 
% β- = 100
% β-n = ?
Only β- decay mode detected. Calculated (1997Mo25) %β-n=49.

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