ADOPTED LEVELS, GAMMAS for 85Ge

Authors: Balraj Singh and Jun Chen |  Citation: Nucl. Data Sheets 116, 1 (2014) |  Cutoff date: 31-Dec-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=10066 keV 5S(n)= 3046 keV 5S(p)= 16130 keV SYQ(α)= -9349 keV 6
Reference: 2012WA38

References:
  A  85Ga β- decay (92 MS)  B  86Ga β-n decay (43 MS)

General Comments:

1991Kr15: 85Ge produced and identified in 238U(p,F) E=600 MeV, at ISOLDE, CERN facility

1991Om01: 235U(n,F)

85Ge produced by 2008Ha23 through U(p,F) and U(d,F) reactions at 25 MeV.

2013Ma22: proton beam was provided by the Oak Ridge Isochronous Cyclotron (ORIC) at the HRIBF-ORNL facility. Target=238UCx. Fission fragment were ionized to charge state +1 then purified using H2S gas, a mass pre-separator and electromagnetic separation. The purified beams were then sent to the Low-energy Radioactive Ion Beam Spectroscopy Station (LeRIBSS) and implanted in a moving tape collector (MTC). Measured Eγ, Iγ, Eβ, βγ-coin, half-life of 85Ge g.s. using two plastic scintillation counters and four HPGe detectors. Comparison with theoretical calculations using gross theory of β decay, the finite-range droplet model and the continuum quasiparticle random-phase approximation.

Mass measurements: 2008Ha23 (JYFLTRAP, Penning-trap method at IGISOL facility in Jyvaskyla)

Precise mass measurement: 2008Ha23. Other: 2006Ha62

Q-value: Estimated ΔS(p)=400 (syst,2012Wa38)

Q-value: Q(β-n)=4659 5, S(2n)=8290 4, S(2p)=30960 500 (syst) (2012Wa38)









E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)Final Levels
     0AB (3/2+,5/2+) 503 ms 18 
% β- = 100
% β-2n = ?
% β-n = 16.5 23
    
   107.2 1 AB (5/2+,3/2+) < 30 ns    107.2 1 
  100
     0
(3/2+,5/2+)
   250 B      250
  100
     0
(3/2+,5/2+)
   472.1 1 AB (3/2+)      364.9 1 
   472.1 1 
  100 21 
   55 6 
   107.2
     0
(5/2+,3/2+)
(3/2+,5/2+)
   703.1 1 A       595.9 1 
   703.1 1 
  100 32 
   34 12 
   107.2
     0
(5/2+,3/2+)
(3/2+,5/2+)
   895.2 1 A       788.0 1 
  100
   107.2
(5/2+,3/2+)
   903.2 1 ?A       796.0 1 ?
  100
   107.2
(5/2+,3/2+)
  2348.2 1 A      2241.0 1 
  100
   107.2
(5/2+,3/2+)

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0(3/2+,5/2+) 503 ms 18 
% β- = 100
% β-2n = ?
% β-n = 16.5 23
%β-n value is from neutron and β intensity measurement (2013AgZY) at JYFL facility using BELEN neutron counter and Si detectors for β. This value most likely includes β-2n contribution, although, it is predicted to be negligible in theoretical calculations (1997Mo25) Other: 14% 3 (1991Kr15) agrees with the value from 2013AgZY.
   107.2(5/2+,3/2+) < 30 ns Jπ(level): From shell-model predictions (2013Ko31).
   472.1(3/2+)   Jπ(level): From shell-model predictions (2013Ko31).

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