ADOPTED LEVELS, GAMMAS for 73Cu
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 158, 1 (2019) | Cutoff date: 16-May-2019
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=6606.0 keV 27 | S(n)= 7275.8 keV 24 | S(p)= 12050.3 keV 30 | Q(α)= -1113×101 keV 14 | ||
Reference: 2017WA10 |
References: | |||
A | 73Ni β- decay (0.84 S) | B | Coulomb Excitation |
C | 238U(76Ge,xγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABC | 3/2- | 4.2 s 3 % β- = 100 % β-n = ? | |||||
135.4 1 | B | (1/2)- | 135.4 1 | 100 | [M1+E2] | 0.0 | 3/2- | |
166.07 10 | ABC | (5/2)- | 166.1 1 | 100 | [M1+E2] | 0.0 | 3/2- | |
961.21 20 | AB | (7/2)- | 2.6 ps 3 | 961.2 2 | 100 | [E2] | 0.0 | 3/2- |
1010.14 15 | A | (7/2-) | 844.2 2 1010.0 2 | 73 8 100 10 | 166.07 0.0 | (5/2)- 3/2- | ||
1297.96 22 | A C | (7/2-) | 15 ps 8 | 1131.9 2 | 100 | [M1+E2] | 166.07 | (5/2)- |
1489.04 18 | A | (9/2-) | 478.9 1 | 100 | 1010.14 | (7/2-) | ||
1708.8 7 ? | A | 1542.2 10 | 100 | 166.07 | (5/2)- | |||
2161.6 14 | A | (7/2+) | 1995.5 14 | 100 | 166.07 | (5/2)- | ||
2386.0 6 | A | (9/2+,11/2+) | 676.9 7 1088.2 6 | 100 22 76 22 | 1708.8 1297.96 | (7/2-) |
Jπ(level): Except for the ground state, all other assignments (from 2001Fr21) are tentative, based on shell-model predictions, and comparisons with the structure of neighboring nuclides. π=- for 135, 166 and 961 levels is from direct excitation from 3/2- ground state in Coulomb excitation
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
135.4 | (1/2)- | 135.4 1 | [M1+E2] | 0.11 | α=0.11 9, α(K)=0.10 8, α(L)=0.011 9, α(M)=0.0015 12, α(N)=4.E-5 3 | |
166.07 | (5/2)- | 166.1 1 | [M1+E2] | 0.05 | α=0.05 4, α(K)=0.05 4, α(L)=0.005 4, α(M)=0.0007 5, α(N)=1.9×10-5 14 | |
961.21 | (7/2)- | 2.6 ps 3 | 961.2 2 | [E2] | 0.000294 | B(E2)(W.u.)=14.6 +19-15, α=0.000294 5, α(K)=0.000264 4, α(L)=2.62E-5 4, α(M)=3.68E-6 6, α(N)=1.116E-7 16 |
1297.96 | (7/2-) | 15 ps 8 | 1131.9 2 | [M1+E2] | 0.000189 | α=0.000189 14, α(K)=0.000168 12, α(L)=1.66×10-5 12, α(M)=2.33E-6 17, α(N)=7.1E-8 5 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 3/2- | 4.2 s 3 % β- = 100 % β-n = ? | μ=+1.7425 9 (2017De30), Q=-0.23 2 (2017De30) δ<r2>(65Cu,73Cu)=0.523 fm2 15(stat) 58(syst) (2016Bi08); the systematic uncertainty for isotope shift resulted from those in the atomic factors. E(level): δ<r2>(65Cu,73Cu)=0.523 fm2 15(stat) 58(syst) (2016Bi08); the systematic uncertainty for isotope shift resulted from those in the atomic factors. |
961.21 | (7/2)- | 2.6 ps 3 | Configuration=π2p3/2~#2+ in 70,72Ni proposed earlier is consistent with B(E2) values (2008St04). |
2161.6 | (7/2+) | Jπ(level): Possible member of πp3/2(νp1/2-1~#νg9/25)5- multiplet. | |
2386.0 | (9/2+,11/2+) | Jπ(level): Possible member of πp3/2(νp1/2-1~#νg9/25)5- multiplet. |
E(level) | E(gamma) | Comments |
135.4 | 135.4 | E(γ): from Coulomb excitation. |
Other measurements:
1983Ru06: production and identification in W(76Ge,X) E=9 MeV/nucleon followed by mass separation. Other: 238U(p,F) E=30 MeV (2002Kr13, 2002Kr10).
2007Gu09, 2007Ra27: measured mass
2009Fl03, 2010Vi07: 73Cu was produced at ISOLDE facility in U(p,F) reaction. Resonance Ionization laser ion source (RILIS) used to laser ionize the atoms. Measured hyperfine structure. Deduced spin, magnetic dipole and electric quadrupole moment of the ground state. Collinear and in-source laser spectroscopic technique Authors state that quadrupole moments can be deduced from these measurements and will be discussed in a forthcoming paper. Comparison with large-scale shell-model calculations
2016Bi08: 73Cu isotope produced in U(p,X), E=1.4 GeV reaction at the CERN-ISOLDE facility, followed by selective ionization using RILIS laser ion source, accelerated to 30 keV and injected into a gas-filled linear Paul trap. Measured isotope shift with respect to 65Cu using the collinear laser spectroscopy setup. Comparison with droplet model predictions.
2017De30: 73Cu produced in 1.4-GeV proton bombardment of UCx target using HRS mass separator, ISCOOL gas-filled segmented linear Paul trap, and RILIS at ISOLDE-CERN facility. Measured hyperfine spectra, hyperfine structure parameters, magnetic dipole moment and electric quadrupole moment by Collinear Resonance Ionization Spectroscopy (CRIS). See also previous measurements at the same laboratory by 2009Fl03 and 2010Vi07
2017Yu05: 9Be(86Kr,X), E=64 MeV/nucleon; analyzed available data; deduced S(n) and S(2n).
74Ni is expected to decay by β-n mode to 73Cu, but no details are available
Q-value: S(2n)=12418.9 24, S(2p)=29200 470, Q(β-n)=1086.7 29 (2017Wa10)