ADOPTED LEVELS, GAMMAS for 57Cr
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 12-APR-2010
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=4962.0 keV 24 | S(n)= 5314 keV 3 | S(p)= 1.369×104 keV 18 | Q(α)= -8.12×103 keV 10 | ||
Reference: 2012WA38 |
References: | |||
A | 57V β- decay (350 MS) | B | 14C(48Ca,αnγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | AB | (3/2)- | 21.1 s 10 % β- = 100 | |||||
267.87 8 | AB | (5/2-) | 267.92 9 | 100 | D | 0.0 | (3/2)- | |
692.69 9 | AB | (5/2-) | 424.90 14 692.61 12 | 24.7 17 100 5 | D+Q | 267.87 0.0 | (5/2-) (3/2)- | |
941.79 10 | AB | (7/2-) | 249.08 8 673.8 2 941.75 18 | 60.9 22 28.3 18 100 5 | D (Q) | 692.69 267.87 0.0 | (5/2-) (5/2-) (3/2)- | |
1506.91 14 | B | (9/2+) | 565.11 10 | 100 | D+Q | 941.79 | (7/2-) | |
1581.13 19 | AB | (9/2-) | 639.1 2 1313.8 4 | 100 6 28 8 | D+Q (Q) | 941.79 267.87 | (7/2-) (5/2-) | |
1585.2 6 | A | 892.5 6 | 100 | 692.69 | (5/2-) | |||
1858.1 4 | B | (9/2-) | 1166.5 6 1593.8 17 | 61 12 100 23 | 692.69 267.87 | (5/2-) (5/2-) | ||
2098.14 22 | B | (11/2-) | 240.8 4 516.88 19 1156.0 4 | 9.4 12 68 4 100 24 | (Q) | 1858.1 1581.13 941.79 | (9/2-) (9/2-) (7/2-) | |
2344.50 19 | B | (13/2+) | 837.59 12 | 100 | (Q) | 1506.91 | (9/2+) | |
2611.6 3 | B | (13/2-) | 513.4 2 1030.8 5 | 76 8 100 50 | 2098.14 1581.13 | (11/2-) (9/2-) | ||
3377.6 6 | B | 1279.4 5 | 100 | 2098.14 | (11/2-) | |||
3500.4 3 | B | (17/2+) | 1155.9 2 | 100 | (Q) | 2344.50 | (13/2+) | |
3555.4 5 | B | (15/2-) | 943.8 4 | 100 | D+Q | 2611.6 | (13/2-) | |
4136.4 8 | B | 758.8 5 | 100 | 3377.6 | ||||
4827.0 15 | B | 1326.6 14 | 100 | 3500.4 | (17/2+) | |||
4856.4 11 | B | 720.0 8 | 100 | 4136.4 | ||||
4920.1 10 | B | 1364.7 8 | 100 | 3555.4 | (15/2-) | |||
5018.6 5 | B | (21/2+) | 1518.2 4 | 100 | (Q) | 3500.4 | (17/2+) | |
6814.7 10 | B | (25/2+) | 1796.0 8 | 100 | 5018.6 | (21/2+) | ||
8844.4 21 | B | (29/2+) | 2029.7 18 | 100 | 6814.7 | (25/2+) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
10972 5 | B | (33/2+) | 2128 4 | 100 | 8844.4 | (29/2+) | ||
12950 6 ? | B | (37/2+) | 1978 4 ? | 100 | 10972 | (33/2+) |
E(level): From least-squares fit to Eγ’s. Reduced χ2=2.0, but still within the critical χ2 value
Jπ(level): Assignments based on γ(θ) data and band assignments
M(γ): From γ(q) data in 14C(48Ca,αnγ). Mult=d or D+Q is from negative A2 and indicates ΔJ=1 transition, mult=Q is from positive A2 and indicates ΔJ=2 transition
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - ν1/2[440], prolate decoupled band. | |||||||
1506.91 14 | (9/2+) | ||||||
2344.50 19 | (13/2+) | 837.59 12 | 100 | (Q) | 1506.91 | (9/2+) | |
3500.4 3 | (17/2+) | 1155.9 2 | 100 | (Q) | 2344.50 | (13/2+) | |
5018.6 5 | (21/2+) | 1518.2 4 | 100 | (Q) | 3500.4 | (17/2+) | |
6814.7 10 | (25/2+) | 1796.0 8 | 100 | 5018.6 | (21/2+) | ||
8844.4 21 | (29/2+) | 2029.7 18 | 100 | 6814.7 | (25/2+) | ||
10972 5 | (33/2+) | 2128 4 | 100 | 8844.4 | (29/2+) | ||
12950 6 | (37/2+) | 1978 4 ? | 100 | 10972 | (33/2+) | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - γ-sequence based on 9/2(-) | |||||||
1581.13 19 | (9/2-) | ||||||
2098.14 22 | (11/2-) | 240.8 4 516.88 19 1156.0 4 | 9.4 12 68 4 100 24 | (Q) | 1858.1 1581.13 941.79 | (9/2-) (9/2-) (7/2-) | |
2611.6 3 | (13/2-) | 513.4 2 1030.8 5 | 76 8 100 50 | 2098.14 1581.13 | (11/2-) (9/2-) | ||
3555.4 5 | (15/2-) | 943.8 4 | 100 | D+Q | 2611.6 | (13/2-) | |
4920.1 10 | 1364.7 8 | 100 | 3555.4 | (15/2-) | |||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 3 - γ-sequence based on g.s. | |||||||
0.0 | (3/2)- | 21.1 s 10 % β- = 100 | |||||
267.87 8 | (5/2-) | 267.92 9 | 100 | D | 0.0 | (3/2)- | |
692.69 9 | (5/2-) | 424.90 14 692.61 12 | 24.7 17 100 5 | D+Q | 267.87 0.0 | (5/2-) (3/2)- | |
941.79 10 | (7/2-) | 249.08 8 673.8 2 941.75 18 | 60.9 22 28.3 18 100 5 | D (Q) | 692.69 267.87 0.0 | (5/2-) (5/2-) (3/2)- |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (3/2)- | 21.1 s 10 % β- = 100 | E(level): γ-sequence based on g.s. |
267.87 | (5/2-) | E(level): γ-sequence based on g.s. Jπ(level): Parity assignment based on observed direct β-feeding of level in decay of 57V. The level is based on excitations of pf-shell neutrons. | |
692.69 | (5/2-) | E(level): γ-sequence based on g.s. Jπ(level): Parity assignment based on observed direct β-feeding of level in decay of 57V. The level is based on excitations of pf-shell neutrons. | |
941.79 | (7/2-) | E(level): γ-sequence based on g.s. Jπ(level): Parity assignment based on observed direct β-feeding of level in decay of 57V. The level is based on excitations of pf-shell neutrons. | |
1506.91 | (9/2+) | E(level): ν1/2[440], prolate decoupled band. | |
1581.13 | (9/2-) | E(level): γ-sequence based on 9/2(-). | |
2098.14 | (11/2-) | E(level): γ-sequence based on 9/2(-). | |
2344.50 | (13/2+) | E(level): ν1/2[440], prolate decoupled band. | |
2611.6 | (13/2-) | E(level): γ-sequence based on 9/2(-). | |
3500.4 | (17/2+) | E(level): ν1/2[440], prolate decoupled band. | |
3555.4 | (15/2-) | E(level): γ-sequence based on 9/2(-). | |
4920.1 | E(level): γ-sequence based on 9/2(-). | ||
5018.6 | (21/2+) | E(level): ν1/2[440], prolate decoupled band. | |
6814.7 | (25/2+) | E(level): ν1/2[440], prolate decoupled band. | |
8844.4 | (29/2+) | E(level): ν1/2[440], prolate decoupled band. | |
10972 | (33/2+) | E(level): ν1/2[440], prolate decoupled band. | |
12950 | (37/2+) | Configuration=π(f7/24)ν(g9/2)ν(f5/2p3/2p1/2)4. E(level): ν1/2[440], prolate decoupled band. |
E(level) | E(gamma) | Comments |
692.69 | 424.90 | I(γ): other: 15 5 in β- decay |
941.79 | 249.08 | I(γ): other: 28 14 in β- decay |
1581.13 | 639.1 | E(γ): γ from 14C(48Ca,αnγ) only, not reported in β- decay |
1978Da04: first identification and production of 57Cr in 48Ca(11B,np) at E=21 MeV. Measured half-life
1990Tu01: 57Cr activity produced by 800 MeV proton induced fission and fragmentation using natural Th target and subsequent particle analysis with a tof isochronous spectrometer.
1990Da15: yield measurement in Ti(α,xnyp) at E=30-60 MeV.
1994Se12: mass measurement
2005Gu37: mass measurement using Penning-trap method
2007Na31: production yield in 136Xe(p,X) E=1 GeV/nucleon, GSI.
2008Ka41: shell-model calculations, B(E2).
Other reaction:
1982Se09: 59Co(π-,2p) E=stopped pions. Negative pions at momentum of 110 MeV/c were moderated and stopped in 59Co target at Swiss Institute for Nuclear Research. Measured pp-coin and σ(θ) for coincident protons using six ΔE-E silicon telescopes. Deduced yields for pp-, pd- and pt-channels and missing mass spectra.
Q-value: Note: Current evaluation has used the following Q record 4962.7 26 5314.2 26 13.73×10320-8.12×103 10 2009AuZZ,2003Au03
Q-value: S(2n)=13559.3 20, S(2p)=25430 150 (2009AuZZ,2003Au03)