ADOPTED LEVELS for 75Co
Authors: Alexandru Negret, Balraj Singh | Citation: Nucl. Data Sheets 114, 841 (2013) | Cutoff date: 30-Jun-2013
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=15150 keV SY | S(n)= 4710 keV SY | S(p)= 17150 keV SY | Q(α)= -16320 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0.0 | 30 ms 11 % β- = 100 % β-2n = ? % β-n < 16 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 30 ms 11 % β- = 100 % β-2n = ? % β-n < 16 | Theoretical values: %β-n=6.9 (1997Mo25), 7.4, 8.0 (2002Pf04); %β-2n=0.5 (1997Mo25). Systematic %β-n=37.9 (2002Pf04). |
1997Be70 (also 1995En07): 75Co identified by analyzing fragments using the FRS fragment separator at GSI and the Bρ-|E-tof (time of flight=150 ns) technique from fission in 9Be(238U,X) E=750 MeV/nucleon, σ=3×10-4 μb. Two events were assigned to 75Co.
2010Ho12: 9Be(86Kr,X) E=140 MeV/nucleon; fully-ionized 86Kr beam, A1900 fragment separator at NSCL facility using Bρ-ΔE-Bρ method. After separation, the mixed beam was implanted into the NSCL β-counting system (BCS) consisting of stacks of Si PIN detectors, a double-sided Si strip detector (DSSD) for implantation of ions, and six single-sided Si strip detectors (SSSD) followed by two Si PIN diodes. The identification of each implanted event was made from energy loss, ToF information and magnetic rigidity. The implantation detector measured time and position of ion implantations and β decays. Neutrons were detected with NERO detector. Measured β- and βn-correlated events with ion implants, half-life of 75Co and delayed-neutron emission probability. α total of 76 implants were detected and one correlated βn coincidence was observed.
Theoretical calculations: 1984So19
Q-value: S(2n)=8350 860, Q(β-n)=11290 810 (syst,2012Wa38). S(2p)=38370 (calc,1997Mo25)
Q-value: Estimated uncertainties (2012Wa38): 760 keV for Q(β-), 920 for S(n), 1060 for S(p) and 990 for Q(α).