Authors: P.K. Joshi, B. Singh, S. Singh, A.K. Jain |  Citation: Nucl. Data Sheets 138, 1 (2016) |  Cutoff date: 15-Oct-2016 

 Full ENSDF file | Adopted Levels (PDF version) 

S(n)= 10780 keV SYS(p)= 1260 keV SYQ(α)= 4230 keV SY
Reference: 2012WA38

  A  140Ho p decay (6 MS) 

General Comments:

1999Xu05 (also 2005Xu04): 139Dy produced and identified in 106Cd(36Ar,X) reaction at E=176 MeV. Measured p-γ1(x ray)-γ2(x ray)-t; He-jet; totally depleted silicon surface barrier detectors, HPGe detectors.

2000So11: 90Zr(197Au,X) E=30 MeV/nucleon; measured fragments charge and mass distribution and isotopic production σ=70 μb for the production of 139Dy

Q-value: Estimated uncertainties (2012Wa38): ΔS(n)=640, ΔS(p)=590, ΔQ(α)=640

Q-value: Q(εp)=10730 540, S(2p)=1010 590 (both from syst, 2012Wa38). S(2n)=24280 (theory, 1997Mo25)

XREFJπ(level) T1/2(level)
  0A (7/2+) 0.6 s 2 
% ε = 100
% εp ≈ 11

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Additional Level Data and Comments:

  0(7/2+) 0.6 s 2 
% ε = 100
% εp ≈ 11
Observed 221γ and 384γ, assigned to the decay of first 2+ and 4+ states, respectively in 138Gd (1999Xu05).

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