ADOPTED LEVELS, GAMMAS for 108Zr
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 10-JUN-2015
Authors: Balraj Singh and Michael Birch | Citation: ENSDF | Cutoff date: 31-May-2011
Author: Jean Blachot | Citation: ENSDF | Cutoff date: 1-Jul-2008
Author: Jean Blachot | Citation: Nucl. Data Sheets 91, 135 (2000) | Cutoff date: 1-Jun-2000
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=8190 keV SY | S(n)= 5160 keV SY | S(p)= 16280 keV SY | Q(α)= -9670 keV SY | ||
| Reference: 2012WA38 |
| References: | |||
| A | 108Y β- decay (30 MS) | B | 9Be(238U,Fγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 0+ | 77.4 ms 22 % β- = 100 % β-n = ? | |||||
| 174.3 5 | AB | (2+) | 174.4 5 | 100 | 0.0 | 0+ | ||
| 521.5 6 | AB | (4+) | 347.2 5 | 100 | 174.3 | (2+) | ||
| 604.1 5 | B | (1,2+) | 603.9 5 | 100 | 0.0 | 0+ | ||
| 947.6 6 | B | (2+,3,4+) | 426.3 5 773.6 5 | 100 15 45 15 | 521.5 174.3 | (4+) (2+) | ||
| 1000.1 7 | B | (6+) | 478.3 5 | 100 | 521.5 | (4+) | ||
| 1432.5 6 | B | 485.3 5 828.3 5 | 68 23 100 36 | 947.6 604.1 | (2+,3,4+) (1,2+) | |||
| 1642.3 8 | B | (8+) | 642.3 5 | 100 | 1000.1 | (6+) | ||
| 1796.4 7 | B | 364.2 5 795.9 5 | 100 24 56 20 | 1432.5 1000.1 | (6+) | |||
| 2074.5 8 | B | (6+) | 0.536 µs +26-25 % IT = 100 | 277.9 5 432.3 5 | 100 16 59 16 | [E2] | 1796.4 1642.3 | (8+) |
Jπ(level): From assignment as ground-state band members
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - The g.s. band | |||||||
| 0.0 | 0+ | 77.4 ms 22 % β- = 100 % β-n = ? | |||||
| 174.3 5 | (2+) | 174.4 5 | 100 | 0.0 | 0+ | ||
| 521.5 6 | (4+) | 347.2 5 | 100 | 174.3 | (2+) | ||
| 1000.1 7 | (6+) | 478.3 5 | 100 | 521.5 | (4+) | ||
| 1642.3 8 | (8+) | 642.3 5 | 100 | 1000.1 | (6+) | ||
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 77.4 ms 22 % β- = 100 % β-n = ? | Theoretical %β-n=1.96 (2003Mo09). E(level): The g.s. band. |
| 174.3 | (2+) | E(level): The g.s. band. | |
| 521.5 | (4+) | E(level): The g.s. band. | |
| 1000.1 | (6+) | E(level): The g.s. band. | |
| 1642.3 | (8+) | E(level): The g.s. band. |
1997Be70, 1995CzZZ: 108Zr was produced by the in-flight fission of 238U ions at 750 MeV/nucleon impinging on a 1.2 g/cm2 thick Be target at GSI facility.
2008Be33: 108Zr formed in reaction Be(136Xe,F) with E=1 GeV/nucleon at GSI facility. Effective thickness of target: 2.5 g/cm2. Products identified in-flight by using the Fragment Separator (FRS). Measured cross section, σ=61 pb 22.
2011Ni01: 108Zr nuclide produced in Be(238U,F) reactions at E=345 MeV/nucleon produced by the cascade operation of the RBIF complex of accelerators at RIKEN. Target=550 mg/cm2. Identification of 108Zr made on the basis of magnetic rigidity, time-of-flight and energy loss. The separated nuclei were implanted in a nine-layer double-sided silicon-strip detector (DSSSD). Correlations were recorded between the heavy ions and β rays. The half-life of 108Zr isotope was measured from the correlated ion-β decay curves and maximum likelihood analysis technique. In the analysis of the decay curve, β-detection efficiency, background rate, daughter and granddaughter (including those populated in delayed neutron decays) half-lives, and β-delayed neutron emission probabilities were considered. Comparison of measured half-lives with FRDM+QRPA and KTUY+GT2 calculations
2011Su11: excited states and γ rays from the decay of 108Y decay studied in this work
2015Lo04: 108Zr 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. Identification of 108Zr was made by determining atomic Z and mass-to-charge ratio α/Q, where Q=charge state of the ions. The selectivity of ions was based on magnetic rigidity, time-of-flight and energy loss. The separated nuclei were implanted at a rate of 50 ions/s in a stack of eight double-sided silicon-strip detector (WAS3ABi), surrounded by EURICA array of 84 HPGe detectors. Correlations were recorded between the implanted ions and β rays. The half-life of 108Zr isotope was measured from the correlated ion-β decay curves and maximum likelihood analysis technique as described in 2014Xu07. Comparison of measured half-lives with FRDM+QRPA, KTUY+GT2 and DF3+CQRPA theoretical calculations
Theoretical Structure calculations:
2012Sh05: levels, J, π, configurations, shapes, and deformation parameters
2012Ta16: levels, J, π, energy spectra of tetrahedral deformation, moment of inertia
Q-value: Estimated uncertainties (2012Wa38): 400 for Q(β-), 500 for S(n), 640 for S(p), 500 for Q(α)
Q-value: Q(β-n)=4300 400, S(2n)=8590 450, S(2p)=31140 720 (syst,2012Wa38).