ADOPTED LEVELS, GAMMAS for 64Co
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 178, 41 (2021). | Cutoff date: 12-Nov-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=7307 keV 20 | S(n)= 6012 keV 27 | S(p)= 11446 keV 20 | Q(α)= -9249 keV 20 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 64Fe β- decay (2.0 S) | B | 64Ni(d,2He) |
| C | 64Ni(t,3He) | D | 198Pt(76Ge,xγ) |
| E | 238U(70Zn,xγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABCDE | 1+ | 0.30 s 3 % β- = 100 | |||||
| 107 20 ? | > 280 ms % IT = ? % β- = ? | |||||||
| 176 30 ? | C | |||||||
| 310.9 5 | ABC E | (1+,2+,3+) | 310.9 5 | 100 | 0.0 | 1+ | ||
| 441.0 5 | DE | (2+,3+) | 440.2 9 | 100 | 0.0 | 1+ | ||
| 458 15 | BC | (1+) | ||||||
| 672.6 4 | DE | (3+) | 231.3 3 672.8 4 | 100 5 66 6 | (M1) (E2) | 441.0 0.0 | (2+,3+) 1+ | |
| 691 15 | BC | (1+) | ||||||
| 769.3 5 | DE | (4+) | 96.4 3 328.7 4 | 100 6 6 1 | (M1) | 672.6 441.0 | (3+) (2+,3+) | |
| 804 15 | BC | |||||||
| 833.2 6 | D | (5+) | 6.4 ns 3 | 63.7 5 160.7 5 | 100 8 8 3 | (M1) [E2] | 769.3 672.6 | (4+) (3+) |
| 867 15 | BC | |||||||
| 953 15 | C | |||||||
| 1067 15 ? | C | |||||||
| 1132 15 | BC | (1+,2+,3+) | ||||||
| 1300 15 | C | |||||||
| 1410 15 | BC | (1+) | ||||||
| 1541 15 | BC | (0+,1-,2-) | ||||||
| 1561 | A | 1250 | 100 | 310.9 | (1+,2+,3+) | |||
| 1669 15 | BC | (0+,1-,2-) | ||||||
| 1773 15 | BC | (0+,1-,2-) | ||||||
| 1906 15 | C | |||||||
| 1974 26 | B | (0+,1-,2-) | ||||||
| 2058 15 | BC | (0+,1-,2-) | ||||||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2413 23 | B | (0+,1-,2-) | ||||||
| 2494 20 | B | (0+,1-,2-) | ||||||
| 2681 20 | B | (0+,1-,2-) | ||||||
| 2817 23 | B | (0+,1-,2-) | ||||||
| 3074 30 | B | (0+,1-,2-) | ||||||
| 3188 30 | B | (0+,1-,2-) | ||||||
| 3486 20 | B | (0+,1-,2-) | ||||||
| 3644 27 | B | (0+,1-,2-) | ||||||
| 4870 40 | B | |||||||
E(level): From a least-squares fit to Eγ data for levels populated in γ-ray studies
E(γ): From (70Zn,Xγ) unless otherwise stated
M(γ): From angular asymmetry ratio of γ intensities in the reaction plane and out of the reaction plane in 198Pt(76Ge,X). Electric or magnetic nature of the multipolarity is not determined by this ratio, but stretched quadrupole transitions are most likely E2 from RUL, and stretched dipole (ΔJ=1) transitions are considered as M1 by 2000As05.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 769.3 | (4+) | 96.4 3 | (M1) | 0.0441 | α=0.0441 9 | |
| 833.2 | (5+) | 6.4 ns 3 | 63.7 5 | (M1) | 0.138 | B(M1)(W.u.)=0.108 11, α=0.138 4 |
| (5+) | 6.4 ns 3 | 160.7 5 | [E2] | 0.0866 | B(E2)(W.u.)=3.7 14, α=0.0866 16 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 310.9 | (1+,2+,3+) | XREF: B(296)C(296). | |
| 441.0 | (2+,3+) | Jπ(level): As proposed by 2000As05 based on γ-ray multipolarity assignments and model considerations. | |
| 458 | (1+) | E(level): Unweighted average of values from (d,2He) and (t,3He). | |
| 672.6 | (3+) | Jπ(level): As proposed by 2000As05 based on γ-ray multipolarity assignments and model considerations. | |
| 691 | (1+) | E(level): Unweighted average of values from (d,2He) and (t,3He). | |
| 769.3 | (4+) | Jπ(level): As proposed by 2000As05 based on γ-ray multipolarity assignments and model considerations. | |
| 833.2 | (5+) | 6.4 ns 3 | Jπ(level): As proposed by 2000As05 based on γ-ray multipolarity assignments and model considerations. |
| 1132 | (1+,2+,3+) | E(level): Unweighted average of values from (d,2He) and (t,3He). | |
| 1410 | (1+) | E(level): Unweighted average of values from (d,2He) and (t,3He). | |
| 1541 | (0+,1-,2-) | E(level): Unweighted average of values from (d,2He) and (t,3He). Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 1669 | (0+,1-,2-) | E(level): Unweighted average of values from (d,2He) and (t,3He). Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 1773 | (0+,1-,2-) | XREF: C(?). Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 1974 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 2058 | (0+,1-,2-) | E(level): Unweighted average of values from (d,2He) and (t,3He). Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 2413 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 2494 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 2681 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 2817 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 3074 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 3188 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 3486 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. | |
| 3644 | (0+,1-,2-) | Jπ(level): L(d,2He)=0+1 for each of the unresolved structures: (1543+1650+1773; 1974+2065; 2413+2494; 2681+2817; 3074+3188; 3486+3644) in (d,2He) reaction suggest Jπ=0+,1-,2-. |
| E(level) | E(gamma) | Comments |
| 310.9 | 310.9 | E(γ): from (70Zn,Xγ) |
| 441.0 | 440.2 | E(γ): unweighted average of 441.0 3 (76Ge,Xγ) and 439.3 3 in (70Zn,Xγ) |
| 672.6 | 231.3 | E(γ): weighted average of 231.8 3 (76Ge,Xγ) and 231.1 2 in (70Zn,Xγ) | 672.8 | E(γ): weighted average of 673.0 3 (76Ge,Xγ) and 672.3 4 in (70Zn,Xγ) I(γ): weighted average of 63 14 (76Ge,Xγ) and 67 6 in (70Zn,Xγ) |
| 769.3 | 96.4 | E(γ): weighted average of 97.0 5 (76Ge,Xγ) and 96.3 2 in (70Zn,Xγ) | 328.7 | E(γ): γ from (76Ge,Xγ) only |
Mass measurements: 2010Fe01, 2008Bl05 (also 2011Kw02, could be for an isomer at 107 keV 20 as described by 2010Fe01)
Theory references for structure and other topics: seven primary references in the NSR database at www.nndc.bnl.gov/nsr/
Q-value: S(2n)=14511 27, S(2p)=25846 21 (2021Wa16)