ADOPTED LEVELS, GAMMAS for 158Nd
Author: N. Nica | Citation: Nucl. Data Sheets 141, 1 (2017) | Cutoff date: 1-Feb-2017
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=5035 keV 201 | S(n)= 5664 keV 202 | S(p)= 12803 keV 361 | Q(α)= -4260 keV 283 | ||
| S(2n)= 9724 keV 202 | S(2p)= 23813 keV 361 | Q(β-n)= 171 keV 200 | |||
| Reference: 2017WA10 | |||||
| References: | |||
| A | 158Nd IT decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | A | 0+ | 0.820 s +15-36 % β- = 100 % β-n = ? | |||||
| 65.9 10 | A | (2+) | 65.9 10 S | 100 | [E2] | 0.0 | 0+ | |
| 217.6 12 | A | (4+) | 151.7 5 | 100 | [E2] | 65.9 | (2+) | |
| 451.0 13 | A | (6+) | 233.4 5 | 100 | [E2] | 217.6 | (4+) | |
| 1648.1 14 | A | (6-) | 339 ns 20 | 1197.1 5 | 100 | [E1] | 451.0 | (6+) |
E(level): From Eγ values.
Jπ(level): Postulated by 2016Id02 based on analogy with 156Nd (2009Si21) and the expected rotational character of these nuclei
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - γ.s. rotational band | |||||||
| 0.0 | 0+ | 0.820 s +15-36 % β- = 100 % β-n = ? | |||||
| 65.9 10 | (2+) | 65.9 10 S | 100 | [E2] | 0.0 | 0+ | |
| 217.6 12 | (4+) | 151.7 5 | 100 | [E2] | 65.9 | (2+) | |
| 451.0 13 | (6+) | 233.4 5 | 100 | [E2] | 217.6 | (4+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 65.9 | (2+) | 65.9 10 | [E2] | 10.2 | α=10.2 7, α(K)=3.45 12, α(L)=5.3 4, α(M)=1.21 10, α(N)=0.260 20, α(O)=0.0329 25, α(P)=0.000148 6 | |
| 217.6 | (4+) | 151.7 5 | [E2] | 0.503 | α=0.503 10, α(K)=0.345 6, α(L)=0.1239 25, α(M)=0.0278 6, α(N)=0.00605 12, α(O)=0.000805 16, α(P)=1.65×10-5 3 | |
| 451.0 | (6+) | 233.4 5 | [E2] | 0.1173 | α=0.1173 19, α(K)=0.0895 14, α(L)=0.0218 4, α(M)=0.00482 8, α(N)=0.001054 18, α(O)=0.0001452 24, α(P)=4.69×10-6 8 | |
| 1648.1 | (6-) | 339 ns 20 | 1197.1 5 | [E1] | 6.98×10-4 | α=6.98×10-4, α(K)=0.000580 9, α(L)=7.29E-5 11, α(M)=1.529E-5 22, α(N)=3.42E-6 5, α(O)=5.20E-7 8, α(P)=3.44E-8 5 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 0.820 s +15-36 % β- = 100 % β-n = ? | E(level): γ.s. rotational band. |
| 65.9 | (2+) | E(level): γ.s. rotational band. | |
| 217.6 | (4+) | E(level): γ.s. rotational band. | |
| 451.0 | (6+) | E(level): γ.s. rotational band. | |
| 1648.1 | (6-) | 339 ns 20 | configuration=ν5/2[523] # ν7/2[633]. |
| E(level) | E(gamma) | Comments |
| 65.9 | 65.9 | E(γ): estimated from moment of inertia (2016Id02) by including the unc of the measured γ rays |
1997Be12: this nuclide was observed in projectile fission of 238U at a beam energy of 750 MeV/nucleon with fragment separator at GSI (1997Be12, figure 7). No decay or structure data measured.
2012Ku26: measured production cross-section σ=201~11 nb in reaction with 238U impinging on Be target at 1 GeV/nucleon using fragment separator at GSI
2016Id02, 2015TaZX: 9Be(238U,F), E=345 MeV/nucleon, see 158Nd IT Decay dataset
All data are from 2016Id02, 158Nd IT Decay dataset, unless noted otherwise.
2017Wu04: 158Nd nuclides produced at the RIBF-RIKEN facility using the 9Be(238U,F) reaction at E=345 MeV/nucleon. identification of the nuclide of interest made in the BigRIPS separator by determining the atomic number and the mass-to-charge ratio of the ion using the tof-Bρ-ΔE method. The reaction products were transported through the ZeroDegree Spectrometer and implanted into the beta-counting system WAS3ABi that was surrounded by the EURICA array comprising of 84 HPGe detectors. Measured: implanted ion-β--t, implanted ion-β--γ-t and implanted ions-γ-t correlations. Deduced: T1/2.