ADOPTED LEVELS for 46Fe
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 15-FEB-2010
Author: S. -c. Wu | Citation: Nucl. Data Sheets 91, 1 (2000) | Cutoff date: 20-Jul-2000
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 2.09×104 keV SY | S(p)= 1.6×103 keV SY | Q(α)= -8.1×103 keV SY | |||
| Reference: 2012WA38 |
| References: | |||
| A | 48Ni 2p decay (2.1 MS):? | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0.0 | A | 0+ | 13.0 ms 20 % ε = 100 % εp = 78.7 38 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 13.0 ms 20 % ε = 100 % εp = 78.7 38 | XREF: α(?). |
1992Bo37: 46Fe observed from interaction of a 58Ni beam of 69 MeV/u with natural nickel target using magnetic separation, Wien filter and identification through time-of-flight and ΔE-E measurements
1994Bl10: 9Be(58Ni,X) E=650 MeV/nucleon, Fragment separator FRS at GSI facility, measured cross section for the production of 46Fe
2001Gi01 (also 2001Gi02): Ni(58Ni,X) E=74.5 MeV/nucleon. Fragments selected by the α-LISE3 fragment separator with a Be degrader and Wien filter at GANIL. Ions implanted in a Si-detector telescope which measured ΔE, E, and position. With tof measurements, started both by the cyclotrons’ high-frequency and a micro-channel plate detector before the Wien filter, implanted ions could be identified. The telescope was surrounded by Ge detectors to measure γ’s in the radioactive decay.
2007Do17: 46Fe produced in fragmentation of 58Ni26+ beam at 74.5 MeV/nucleon with natural Ni target at SISSE/LISE3 facility in GANIL. Fragment separator=α-LISE3. Fragment identification by energy loss, residual energy and time-of-flight measurements using two micro-channel plate (MCP) detectors and Si detectors. Double-sided silicon-strip detectors (DSSSD) and a thick Si(Li) detector were used to detect implanted events, charged particles and β particles. The γ rays were detected by four Ge detectors. Coincidences measured between charged particles and γ rays. T1/2 measured by time correlation of implantation events due to 46Fe and subsequent emission of protons and/or γ rays. Total proton branching ratio is from time spectrum of events with energy >900 keV in the charged-particle spectrum. Possible small contributions from delayed-α and delayed-2p decays are ignored. 2007Do17 and 2001Go01 are from the same group. Some of the results in 2007Do17 are an improved analysis of experiments reported in 2001Gi01
Mass excess of g.s.=+759 96 (2007Do17), +755 354 (1992Bo37) from IMME analysis
Structure calculations using shell model: 2004Sv04, 2002Ca48, 1999Ca12: levels, B(E2), etc.
Q-value: Note: Current evaluation has used the following Q record 20900 syst 1420 syst-7660 syst 2009AuZZ,2003Au03
Q-value: Estimated uncertainties: 420 for S(n), 460 for S(p) and Q(α) (2009AuZZ, 2003Au03).
Q-value: Q(εp)=12430 620 (syst,2009AuZZ,2003Au03), S(2p)=360 360 (syst,2009AuZZ,2003Au03)