ADOPTED LEVELS, GAMMAS for 106Zr
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 10-JUN-2015
Authors: Balraj Singh and Michael Birch | Citation: ENSDF | Cutoff date: 31-May-2011
Authors: D. De Frenne and A. Negret | Citation: Nucl. Data Sheets 109, 943 (2008) | Cutoff date: 1-May-2007
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=7290 keV SY | S(n)= 5510 keV SY | S(p)= 15370 keV SY | Q(α)= -8970 keV SY | ||
| Reference: 2012WA38 |
| References: | |||
| A | 106Y β- decay (79 MS) | B | 9Be(238U,Fγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | M(γ) | Final Levels | |
| 0.0 | AB | 0+ | 180 ms 9 % β- = 100 % β-n ≤ 7 | ||||
| 152.1 5 | AB | (2+) | 152.1 | [E2] | 0.0 | 0+ | |
| 476.5 7 | AB | (4+) | 324.4 | 152.1 | (2+) | ||
| 607.0 5 | A | (2+) | 607.0 | 0.0 | 0+ | ||
| 946.5 12 | B | (6+) | 470 1 | 476.5 | (4+) | ||
| 1571.5 23 | B | (8+) | 625 2 | 946.5 | (6+) | ||
E(level): From Eγ data, assuming ΔEγ=0.5 keV when not stated
Jπ(level): From systematics of yrast levels in even-even Zr nuclei (2011Su11) and ground-state band members (2014An01)
E(γ): From β- decay, if a level is populated in both the datasets
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | M(γ) | Final Levels | ||
| Band 1 - The g.s. band | |||||||
| 0.0 | 0+ | 180 ms 9 % β- = 100 % β-n ≤ 7 | |||||
| 152.1 5 | (2+) | 152.1 | [E2] | 0.0 | 0+ | ||
| 476.5 7 | (4+) | 324.4 | 152.1 | (2+) | |||
| 946.5 12 | (6+) | 470 1 | 476.5 | (4+) | |||
| 1571.5 23 | (8+) | 625 2 | 946.5 | (6+) | |||
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 180 ms 9 % β- = 100 % β-n ≤ 7 | Theoretical %β-n=0.6 (2003Mo09). E(level): The g.s. band. |
| 152.1 | (2+) | E(level): The g.s. band. | |
| 476.5 | (4+) | E(level): The g.s. band. | |
| 607.0 | (2+) | Transition from this level to the first 2+ state is expected, but no γ-ray peak was observed at 455 keV due to low statistics (2011Su11). | |
| 946.5 | (6+) | E(level): The g.s. band. | |
| 1571.5 | (8+) | E(level): The g.s. band. |
1994Be24, 1998Do08: 106Zr produced and identified in Pb(238U,F), reaction at E=750 MeV/nucleon. Identification by time-of-flight, FRS at GSI facility
1997So07: 208Pb(238U,F),E=20 MeV/nucleon at NSCL facility using the A1200 fragment separator, four events assigned to 106Zr
2009Pe06: 106Zr formed by fragmentation of 136Xe beam at 120 MeV/nucleon at NSCL facility using Coupled Cyclotrons and A1900 fragment separator. The time-of-flight and transversal positions of each particle was measured using two plastic scintillators. The ΔE energy loss in a Si PIN detector was measured which, when combined with time-of-flight (tof) and transversal position measurements, allowed for an event-by-event identification of the transmitted nuclei. Transmitted nuclei and their β decays were measured using the β counting system consisting of four Si PIN detectors and a double-sided Si strip detector. β-delayed neutrons were measured in coincidence with β-decay precursor using neutron emission ratio observer (NERO) detector consisting of 60 proportional gas counter tubes embedded in polyethylene moderator matrix. The γ rays were measured with SeGA Ge detectors. Measured isotopic half-lives and delayed neutron emission probabilities Isotopic half-life was measured by 2009Pe06 from least-squares fit and maximum likelihood method of time differences of implantations and correlated β decay events.
2011Ni01: 106Zr 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 106Zr 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 106Zr 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
2015Lo04: 106Zr 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 106Zr 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 106Zr 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
2011Su11: 106Zr states populated by β-decay of 106Y. See 106Y β- decay (79 ms) dataset for details
2006Jo14: mass measurement
Theoretical structure calculations:
2012Sh05: levels, J, π, configurations, shapes, and deformation parameters
2011Li13: levels, J, π, rotational bands, yrast band, quasiparticle bands, inertia moment, B(E2)
2011Pe35: levels, J, π, deformation, shape coexistence, rotational band, band mixing
2010Bo12: level energies, B(E2) values, and potential energy surface, IBA-1 model
2009La08: level energies, and B(E2) values. IBA-1 model
2002Xu02: levels, isomers, deformation parameters
1985Ca33: levels, B(E2) ratios
Q-value: Estimated uncertainties (2012Wa38): 200 for Q(β-) and S(n), 540 for S(p), 210 for Q(α)
Q-value: Q(β-n)=2930 200, S(2n)=9320 200, S(2p)=29380 360 (syst,2012Wa38)