ADOPTED LEVELS for 79Cu
Author: Balraj Singh | Citation: Nucl. Data Sheets 135, 193 (2016) | Cutoff date: 31-May-2016
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=11530 keV SY | S(n)= 5470 keV SY | S(p)= 15060 keV SY | Q(α)= -15220 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0 | 241.0 ms 32 % β- = 100 % β-n = 66 12 % β-2n = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 241.0 ms 32 % β- = 100 % β-n = 66 12 % β-2n = ? | %β-n: from weighted average of 72 12 (2010Ho12) and 55 17 (1991Kr15). E(level): %β-n: from weighted average of 72 12 (2010Ho12) and 55 17 (1991Kr15). |
1991Kr15: 79Cu produced by 238U(p,X) E=600 MeV and separated by thermochromatographic technique and mass separation.
1995En07: 9Be(238U,F) reaction at 750 MeV/nucleon followed by tof and magnetic methods to identify 79Cu
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, time-of-flight 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 79Cu and delayed-neutron emission probability.
2014Xu07 (also 2014XuZZ): 79Cu nuclide produced in 9Be(238U,F) reaction with a 238U86+ beam of 345 MeV/nucleon produced by the RIKEN accelerator complex. Separation of 79Cu nuclei was made on the basis of magnetic rigidity, time-of-flight and energy loss of the fragments (ΔE-Bρ-tof method) using BigRIPS fragment separator and ZeroDegree Spectrometer (ZDS) at RIBF-RIKEN facility. Based on α/Q spectrum and Z versus α/Q plot. Measured heavy fragment, β and γ spectra using wide-range active silicon strip stopper array (WAS3ABi) for β and ion detection, and EUROBALL-RIKEN Cluster array for γ detection. Decay curves were obtained from time differences between implantation and correlated β decays
2012Ko29 (also 2009Gr06,2008Wi01): experimental study of β-n decay of 79Cu at HRIBF-ORNL facility
2006Ha62: measured mass excess
Theoretical structure calculations:
2012Sr02, 2010Da06, 2010Si11, 2010Vi07, 2005Li54: levels, J, π, B(E|L)
Q-value: Estimated uncertainties (2012Wa38): 400 for Q(β-), 640 for S(n), 900 for S(p), 810 for Q(α)
Q-value: S(2n)=9530 430, Q(β-n)=7510 400 (syst,2012Wa38). S(2p)=35050 (1997Mo25,calculated)