ADOPTED LEVELS for 69Fe

Author: C.D. Nesaraja |  Citation: Nucl. Data Sheets 115, 1 (2014) |  Cutoff date: 31-Jul-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1.11×104 keV SYS(n)= 3.3×103 keV SYS(p)= 1.80×104 keV SYQ(α)= -1.35×104 keV SY
Reference: 2012WA38

General Comments:

2011Da08,2002MaZN (thesis): Produced by projectile fragmentation of 86Kr beam on 50 mg/cm2 thick Ta at 57.8 MeV/nucleon. Separated by LISE2000 spectrometer at GANIL. Detector system included a three-element Si-detector telescope containing a double-sided silicon-strip detector (DSSSD) backed by a Si(Li) detector and surrounded by four clover type EXOGAM Ge detectors. Product identified by mass, atomic number, charge, energy loss and time of flight. Measured isotopic T1/2 from timing correlation between implanted ions and β decay events. Fitting procedure included five parameters: β-detection efficiency, background rate, mother, daughter and granddaughter half-lives.

2010Sc18: Summary and compilation of the discovery of Fe isotopes.

2003So21,2005GaZR (thesis): Produced by fragmentation of 76Ge30+ beam on a 58Ni target at 61.8 MeV/nucleon. Nuclei separated by LISE3 achromatic spectrometer at GANIL, and identified by three consecutive Si detectors where two were used for energy loss and time-of-flight measurements while the third was used to determine their residual energies. Measured isotopic T1/2 from correlations between implanted nuclei and β decay.

2003So02: Produced by fragmentation of 76Ge30+ beam on a 58Ni target at 61.8 MeV/nucleon. Nuclei separated by LISE3 achromatic spectrometer at GANIL.

1998Am04,1997AmZZ: Produced by fragmentation of 86Kr beam on a Be target at 500 MeV/nucleon. Fission fragments separated with the FRS separator at GSI and identified by combination of Bρ, Z, and tof techniques. Measured isotopic T1/2 from timing correlations of implanted fragments and β decay.

1992We04: Produced by fragmentation of 86Kr beam on a Be target at 500 MeV/nucleon. Isotope identification by the fragment separator FRS at GSI in combination with tof and energy-loss measurements. α total of 12 counts were assigned to 69Fe corresponding to cross section of 2.5 nanobarns with an uncertainty of 80%.

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

Q-value: ΔQ(β-)=440, ΔS(n)=540, ΔS(p)=640, ΔQ(α)=500 (syst,2012Wa38)

Q-value: Q(β-n)=4800 430 (syst,2012Wa38)




E(level)
(keV)
T1/2(level)
  0.0 110 ms 5 
% β- = 100

Back to top

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments

Back to top