ADOPTED LEVELS, GAMMAS for 124Ag
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 20-AUG-2015
Authors: J. Katakura, Z.D. Wu | Citation: Nucl. Data Sheets 109, 1655 (2008) | Cutoff date: 1-Apr-2008
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=1050×101 keV 25 | S(n)= 472×101 keV 25 | S(p)= 13070 keV SY | Q(α)= -9810 keV SY | ||
| Reference: 2012WA38 |
| References: | |||
| A | 124Ag IT decay (1.46 μs) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0+X | A | (3+) | 191 ms 28 % β- = 100 % β-n = 1.3 9 | |||||
| 0+Y | (8-) | 144 ms 20 % β- = 100 % β-n = ? | ||||||
| 155.6+X 5 ? | A | (1+) | 0.14 µs 5 % IT = 100 | 155.6 5 | 100 | [E2] | 0+X | (3+) |
| 231.1+X 7 | A | (1-) | 1.47 µs 20 % IT = 100 | 75.5 5 | 100 | (E1) | 155.6+X | (1+) |
Jπ(level): For excited states, assignment are based on systematics and observed decay pattern (2013La11)
T1/2(level): From γ(t) (2013La11)
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 155.6+X | (1+) | 0.14 µs 5 % IT = 100 | 155.6 5 | [E2] | 0.303 | B(E2)(W.u.)=0.9 4, α=0.303 |
| 231.1+X | (1-) | 1.47 µs 20 % IT = 100 | 75.5 5 | (E1) | 0.363 | B(E1)(W.u.)=3.2E-7 5, α=0.363 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0+X | (3+) | 191 ms 28 % β- = 100 % β-n = 1.3 9 | On the basis of half-life of low-spin activity, %β-n measured in 2006M007 is assumed for this level rather than the 144-ms high-spin activity. |
| 0+Y | (8-) | 144 ms 20 % β- = 100 % β-n = ? | Measured %β-n=1.3 9 (2006Mo07) is assumed for the low-spin activity, however, it is possible that the high-spin isomer also decays by delayed-neutron emissions. |
| E(level) | E(gamma) | Comments |
| 155.6+X | 155.6 | E(γ): Reverse ordering of the 75.5-155.6 γ cascade is also possible (2012Ka36) |
| 231.1+X | 75.5 | E(γ): Reverse ordering of the 75.5-155.6 γ cascade is also possible (2012Ka36) |
1983Re05, 1984Hi03: 124Ag produced and identified in 235U(n,F), E=th, followed by on-line mass separation. Measured delayed β-neutron energies and intensities, β spectra, Eγ, Iγ, γγ-coin, half-life of 124Ag isotope at BNL
1995Fe12, 1996Ka40: 124Ag produced in 238U(p,F),E=1 GeV, followed by on-line mass separation, half-life at ISOLDE-CERN facility
2006Mo07, 2005Ka45, 2004KaZR: Be(136Xe,X),E=121.8 MeV/nucleon, fragment separator at NSCL-MSU, measured T1/2 of ground state, measured half-life, delayed neutron emission probability
2014Ba18 (also 2012Ba62): 124Ag produced in 238U(p,F) at beam energy of E(p)=50 MeV at HRIBF-ORNL. Measured Eγ, Iγ, γγ-coin, half-lives of two activities in 124Ag, one of low-spin (2-) and the other of high spin (8-)
2015Lo04: 124Ag nuclide produced at RIBF-RIKEN facility in 9Be(238U,F) reaction at E=345 MeV/nucleon with an average intensity of 6×1010 ions/s. Measured half-life by ion-β correlation and maximum likelihood fits to the decay curve
Mass measurement: 2010Br02
Q-value: Estimated uncertainties (2012Wa38): 320 for S(p) and Q(α)
Q-value: S(2n)=11240 250, 28610 390 (syst), Q(β-n)=3140 250 (2012Wa38)