ADOPTED LEVELS for 42Cr
Authors: Jun Chen and Balraj Singh | Citation: Nucl. Data Sheets 135, 1 (2016) | Cutoff date: 31-May-2016
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 20340 keV CA | S(p)= 1240 keV SY | Q(α)= -6850 keV SY | |||
| Reference: 2012WA38,1997MO25 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0 | 0+ | 13.3 ms 10 % εp = 94.4 50 % ε ≈ 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 13.3 ms 10 % εp = 94.4 50 % ε ≈ 100 | 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 were ignored. E(level): 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 were ignored. |
1996Bl21: 42Cr identified from 9Be(58Ni,X) E=600 MeV/nucleon; measured fragment charge vs mass to charge ratio at GANIL facility
2001Gi01 (also 2001Gi02,2002Ch28,2000Bl01,1999Bl08): Ni(58Ni,X) at 74 MeV/nucleon at GANIL facility. Measured cross section, half-life and particle spectra
2007Do17: fragmentation reaction used to produce 42Cr isotope at SISSE/LISE3 facility in GANIL. Primary beam: 58Ni26+ at 74.5 MeV/nucleon; target=natural Ni. 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.
42Cr is a possible candidate for 2p decay. Theoretical calculations of this decay mode: 2003Gr24, 2001Gr29, 1996Na03, 1991Br06, 1988Go21, 1988Go24
Q-value: Estimated uncertainties (syst,2012Wa38): ΔS(p)=ΔQ(α)=500
Q-value: S(n) from 1997Mo25; S(p) and Q(α) from 2012Wa38
Q-value: S(2p)=-510 430, Q(εp)=14650 400 (syst,2012Wa38). Theoretical S(2n)=38750