ADOPTED LEVELS for 139Sb
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)
| Q(β-)=10420 keV SY | S(n)= 3320 keV SY | S(p)= 12220 keV SY | Q(α)= -5690 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0 | (7/2+) | 93 ms 13 % β- = 100 % β-n = 90 10 % β-2n = ? % B-3N = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | (7/2+) | 93 ms 13 % β- = 100 % β-n = 90 10 % β-2n = ? % B-3N = ? | Measured yield of the low-energy fission component=0.0002 2 (1998Do08). |
1994Be24: 139Sb produced and identified in Pb(238U,X) reaction at E=750 MeV/nucleon at GSI facility. Target thickness=1.25 g/cm2. Measured projectile fission fragment yields, mass, charge, and velocity distributions, and production σ. Fragment separator, energy-loss, tof techniques.
1998Do08: Pb(238U,X) E=750 MeV/nucleon at GSI, measured fractional independent yield of the low-energy fission component. This work is from the same lab as 1994Be24
2011Ar18: 139Sb produced by bombardment of UCx target with 1 GeV protons followed by selective ionization with the Resonance Ionization Laser Ion Source (RILIS) and high-resolution mass separator at ISOLDE-CERN facility. Measured delayed neutrons to deduce half-life and Pn (delayed neutron emission probability). Comparison with calculations for spherical and nonspherical shapes.
2015Le14: decay of 139Sb to 138Te through β-n decay mode studied by γ-ray spectroscopy
Q-value: Estimated uncertainties (2012Wa38): ΔQ(β-)=400, ΔS(n)=500, ΔS(p)=720, ΔQ(α)=570 (2012Wa38)
Q-value: S(2n)=5900 500, Q(β-n)=7840 400 (syst,2012Wa38). S(2p)=28230 (theory,1997Mo25)