ADOPTED LEVELS, GAMMAS for 63Fe
Author: Jun Chen | Citation: Nucl. Data Sheets 196, 17 (2024) | Cutoff date: 30-Sep-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6216 keV 19 | S(n)= 4829 keV 5 | S(p)= 14401 keV 8 | Q(α)= -9945 keV 4 | ||
| Reference: 2021WA16 | |||||
| References: | |||
| A | 63Mn β- decay | B | 238U(64Ni,xγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 5/2- | 6.1 s 6 % β- = 100 | |||||
| 0+X | B | (9/2+) | ||||||
| 356.56 17 | AB | (3/2)- | 0.11 ns | 356.2 2 | 100 | [M1,E2] | 0.0 | 5/2- |
| 450.7 | A | (3/2-,5/2-) | 0.78 ns | 93.8 451.1 | 87 100 | [M1] [M1,E2] | 356.56 0.0 | (3/2)- 5/2- |
| 625.2 | A | (1/2-,5/2-) | 268.1 625.7 | 10 100 | 356.56 0.0 | (3/2)- 5/2- | ||
| 680.9 | A | (3/2,5/2,7/2) | 229.9 323.7 681.7 | 12 45 100 | 450.7 356.56 0.0 | (3/2-,5/2-) (3/2)- 5/2- | ||
| 819.0+X 4 | B | (13/2+) | 819.0 4 | 100 | 0+X | (9/2+) | ||
| 875.2 | A | 424.4 | 100 | 450.7 | (3/2-,5/2-) | |||
| 906.0 | A | (3/2,5/2,7/2) | 455.5 549.2 | 100 40 | 450.7 356.56 | (3/2-,5/2-) (3/2)- | ||
| 1132.4 | A | (3/2,5/2,7/2)- | 507.0 681.7 775.5 1132.8 | 41 11 38 100 | 625.2 450.7 356.56 0.0 | (1/2-,5/2-) (3/2-,5/2-) (3/2)- 5/2- | ||
| 1177.4 | A | 820.8 | 100 | 356.56 | (3/2)- | |||
| 1533.9 | A | (3/2-,5/2-,7/2-) | 658.6 908.8 1083.4 1177.0 | 67 28 11 100 | 875.2 625.2 450.7 356.56 | (1/2-,5/2-) (3/2-,5/2-) (3/2)- | ||
| 1542.6 | A | 1542.6 | 100 | 0.0 | 5/2- | |||
| 2223.1+X 7 | B | (17/2+) | 1404.1 5 | 100 | 819.0+X | (13/2+) | ||
E(level): From a least-squares fit to γ-ray energies, assuming ΔEγ=0.5 keV where not given
T1/2(level): From βγ(t) in 2009Ma22 in 63Mn β- decay for excited states
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Band based on (9/2+) (2007Lu13) | |||||||
| 0+X | (9/2+) | ||||||
| 819.0+X 4 | (13/2+) | ||||||
| 2223.1+X 7 | (17/2+) | 1404.1 5 | 100 | 819.0+X | (13/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 356.56 | (3/2)- | 0.11 ns | 356.2 2 | [M1,E2] | 0.0028 | α=0.0028 14, α(K)=0.0026 12, α(L)=2.5×10-4 12, α(M)=3.4E-5 17, α(N)=1.5E-6 7 |
| 450.7 | (3/2-,5/2-) | 0.78 ns | 93.8 | [M1] | 0.0417 | B(M1)(W.u.)=0.016, α=0.0417 6, α(K)=0.0374 5, α(L)=0.00371 5, α(M)=0.000512 7, α(N)=2.306×10-5 32 |
| (3/2-,5/2-) | 0.78 ns | 451.1 | [M1,E2] | 0.0014 | α=0.0014 5, α(K)=0.0012 5, α(L)=1.2×10-4 5, α(M)=1.6E-5 6, α(N)=7.5E-7 28 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0+X | (9/2+) | E(level): Band based on (9/2+) (2007Lu13). Jπ(level): Proposed by 2007Lu13 in (64Ni,Xγ) based on shell-model predictions and band assignments. The two transitions of 819 and 1404 keV are proposed by 2007Lu13 in (64Ni,Xγ) to depopulate the states corresponding to the coupling of the g9/2 neutron to the 62Fe 2+ and 4+ states above a 9/2+ level of unknown excitation energy. | |
| 819.0+X | (13/2+) | E(level): Band based on (9/2+) (2007Lu13). Jπ(level): Proposed by 2007Lu13 in (64Ni,Xγ) based on shell-model predictions and band assignments. The two transitions of 819 and 1404 keV are proposed by 2007Lu13 in (64Ni,Xγ) to depopulate the states corresponding to the coupling of the g9/2 neutron to the 62Fe 2+ and 4+ states above a 9/2+ level of unknown excitation energy. | |
| 2223.1+X | (17/2+) | E(level): Band based on (9/2+) (2007Lu13). Jπ(level): Proposed by 2007Lu13 in (64Ni,Xγ) based on shell-model predictions and band assignments. The two transitions of 819 and 1404 keV are proposed by 2007Lu13 in (64Ni,Xγ) to depopulate the states corresponding to the coupling of the g9/2 neutron to the 62Fe 2+ and 4+ states above a 9/2+ level of unknown excitation energy. |
| E(level) | E(gamma) | Comments |
| 356.56 | 356.2 | E(γ): other: 357.2 from 63Mn β- decay. From (64Ni,Xγ) |
| 819.0+X | 819.0 | E(γ): From (64Ni,Xγ) |
| 2223.1+X | 1404.1 | E(γ): From (64Ni,Xγ) |
Mass measurements: 2022Po02 (mass excess=-55.6354 MeV 54, δ-tof at TRIUMF), 2012Na15 (M.E.=-55.6355 MeV 43, ISOLTRAP at CERN), 2010Fe01 (M.E.=-55.6341 MeV 67, LEBIT at NSCL), 2008Bl05 (M.E.=-55.6307 MeV 96, LEBIT at NSCL), 1994Se12 (M.E.=-55.49 MeV 27, TOFI at LAMPF), 1990Tu01 (M.E.=-55.14 MeV 23, TOFI at LAMPF).
Theoretical calculations:
2022Oz02,1976Da02: calculated mass excess
2016Ku21,1998Ka34,1988Be23: calculated β-decay T1/2
2012Lo04: calculated M1 transition strength distributions
2010Sr02: calculated levels, J, π
2003Mi23,1995Ri05: calculated binding energies
Q-value: S(2n)=12858 5, S(2p)=27717 5 (2021Wa16)