ADOPTED LEVELS, GAMMAS for 91Sr
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 114, 1293 (2013) | Cutoff date: 1-Sep-2013
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=2699 keV 5 | S(n)= 5775 keV 6 | S(p)= 11577 keV 9 | Q(α)= -5368 keV 6 | ||
Reference: 2012WA38 |
References: | |||
A | 91Rb β- decay | B | 173Yb(24Mg,FXNG) |
C | 159Tb(36S,Fγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | ABC | 5/2+ | 9.65 h 6 % β- = 100 | |||||
93.628 4 | A | (3/2)+ | 89.4 ns 16 | 93.628 4 | 100 | E2(+M1) | 0 | 5/2+ |
439.159 19 | A | (+) | 345.52 3 439.15 3 | 100 5 25.2 12 | (M1,E2) | 93.628 0 | (3/2)+ 5/2+ | |
993.5 10 | BC | (9/2+) | 993.2 1 | 100 | 0 | 5/2+ | ||
1042.034 25 | A | (+) | 602.85 3 948.49 5 1041.99 5 | 100 5 41.3 23 77 4 | (M1,E2) (M1,E2) (M1,E2) | 439.159 93.628 0 | (+) (3/2)+ 5/2+ | |
1230.84 5 | A | (+) | 1137.24 5 1230.64 15 | 100 5 7.6 7 | (M1,E2) | 93.628 0 | (3/2)+ 5/2+ | |
1367.76 7 | A | 1274.05 18 1367.76 8 | 33 4 100 7 | 93.628 0 | (3/2)+ 5/2+ | |||
1482.12 10 | A | 1388.13 24 1482.17 11 | 15.1 21 100 7 | 93.628 0 | (3/2)+ 5/2+ | |||
1740.27 8 | A | 509.6 5 1646.51 23 1740.25 10 | 12.1 19 18.3 24 100 7 | 1230.84 93.628 0 | (+) (3/2)+ 5/2+ | |||
1917.09 12 | A | 875.0 3 1823.3 4 1917.11 15 | 14.2 22 47 8 100 8 | 1042.034 93.628 0 | (+) (3/2)+ 5/2+ | |||
1942.91 8 | A | (1/2+,3/2,5/2) | 1849.27 9 1942.81 17 | 100 5 12.0 12 | 93.628 0 | (3/2)+ 5/2+ | ||
2064.66 6 | A | 1/2(+),3/2,5/2 | 1023.20 12 1625.4 3 1970.99 10 2064.69 14 | 6.6 6 10.7 7 100 5 11.7 9 | 1042.034 439.159 93.628 0 | (+) (+) (3/2)+ 5/2+ | ||
2077.5 15 | BC | (11/2-) | 1083.6 1 | 100 | D | 993.5 | (9/2+) | |
2159.08 22 | A | 1719.9 3 | 100 | 439.159 | (+) | |||
2236.95 12 | A | 1006.3 4 2143.22 14 2236.9 5 | 14 4 100 8 21 5 | 1230.84 93.628 0 | (+) (3/2)+ 5/2+ | |||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2657.89 6 | A | 1/2(-) TO 5/2(-) | 593.23 3 917.59 22 1615.86 9 2218.2 3 2564.19 14 | 10.3 5 1.48 24 19.6 11 2.2 4 100 5 | 2064.66 1740.27 1042.034 439.159 93.628 | 1/2(+),3/2,5/2 (+) (+) (3/2)+ | ||
3116.3 17 | BC | (15/2-) | 1038.3 1 | 100 | Q | 2077.5 | (11/2-) | |
3304.4 17 | BC | (15/2-) | 1225.7 5 | 100 | 2077.5 | (11/2-) | ||
3364.68 11 | A | 1/2,3/2,5/2 | 1205.6 3 1299.9 3 1624.8 5 2322.34 21 2925.72 18 3270.9 3 | 7.6 16 10.7 16 32.7 22 30 3 100 7 29 4 | 2159.08 2064.66 1740.27 1042.034 439.159 93.628 | 1/2(+),3/2,5/2 (+) (+) (3/2)+ | ||
3395.5 4 ? | A | (1/2+,3/2,5/2) | 3302.2 10 ? 3395.4 4 ? | 43 17 100 18 | 93.628 0 | (3/2)+ 5/2+ | ||
3446.58 18 | A | 1/2(+),3/2,5/2 | 1503.0 7 3007.6 5 3353.1 6 3446.50 20 | 6.1 23 18 3 14 5 100 7 | 1942.91 439.159 93.628 0 | (1/2+,3/2,5/2) (+) (3/2)+ 5/2+ | ||
3576.0 17 | BC | (17/2-) | 271.4 5 459.5 1 | 21 3 100 7 | 3304.4 3116.3 | (15/2-) (15/2-) | ||
3643.81 21 ? | A | (1/2+,3/2,5/2) | 2161.8 6 ? 3643.75 23 ? | 15 5 100 10 | 1482.12 0 | 5/2+ | ||
3693.23 12 | A | 1/2(-) TO 5/2(-) | 1034.9 6 1628.49 14 1953.0 5 3599.67 19 | 1.3 5 8.7 6 0.7 3 100 5 | 2657.89 2064.66 1740.27 93.628 | 1/2(-) TO 5/2(-) 1/2(+),3/2,5/2 (3/2)+ | ||
3736.80 14 | A | 1/2(+),3/2,5/2 | 2254.6 4 2505.95 14 3736.5 4 | 8.8 21 100 6 40 10 | 1482.12 1230.84 0 | (+) 5/2+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3776.62 17 | A | 1/2,3/2,5/2 | 1712.0 4 1859.56 25 2036.1 3 3337.8 5 3682.9 7 | 56 11 41 8 100 14 60 16 22 12 | 2064.66 1917.09 1740.27 439.159 93.628 | 1/2(+),3/2,5/2 (+) (3/2)+ | ||
3831.08 14 ? | A | (1/2,3/2,5/2) | 1174.1 5 ? 1594.15 17 ? 1766.17 18 ? | 24 7 100 9 40 10 | 2657.89 2236.95 2064.66 | 1/2(-) TO 5/2(-) 1/2(+),3/2,5/2 | ||
3839.4 3 ? | A | (1/2+,3/2,5/2) | 3745.9 5 ? 3839.3 3 ? | 33 8 100 10 | 93.628 0 | (3/2)+ 5/2+ | ||
3938.42 20 ? | A | (1/2+,3/2,5/2) | 1874.4 4 ? 3844.33 25 ? 3938.7 5 ? | 11 5 100 8 18 4 | 2064.66 93.628 0 | 1/2(+),3/2,5/2 (3/2)+ 5/2+ | ||
3946.3 18 | BC | (19/2-) | 370.2 3 829.7 3 | 100 6 94 11 | D | 3576.0 3116.3 | (17/2-) (15/2-) | |
4043.33 16 | A | 3/2(-),5/2(-) | 3604.3 6 3949.56 23 4043.26 22 | 50 23 87 7 100 7 | 439.159 93.628 0 | (+) (3/2)+ 5/2+ | ||
4078.30 10 | A | 3/2(-),5/2(-) | 1841.1 3 2013.5 3 2847.39 22 3639.14 22 3984.7 3 4078.25 19 | 3.1 11 6.5 10 16.0 17 29.8 25 10.2 11 100 5 | 2236.95 2064.66 1230.84 439.159 93.628 0 | 1/2(+),3/2,5/2 (+) (+) (3/2)+ 5/2+ | ||
4157.55 19 | A | 3/2(-),5/2(-) | 2789.6 4 4063.9 7 4157.48 22 | 70 7 6 4 100 7 | 1367.76 93.628 0 | (3/2)+ 5/2+ | ||
4189.39 16 | A | 3/2(-),5/2(-) | 2958.6 6 3147.30 24 4095.7 3 4189.2 3 | 20 6 100 10 37 5 36 4 | 1230.84 1042.034 93.628 0 | (+) (+) (3/2)+ 5/2+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4240.1 4 ? | A | (1/2,3/2,5/2) | 2872.5 6 ? 3800.7 5 ? | 100 30 80 18 | 1367.76 439.159 | (+) | ||
4249.1 3 ? | A | (1/2+,3/2,5/2) | 4249.0 3 ? | 100 | 0 | 5/2+ | ||
4253.8 3 ? | A | (1/2+,3/2,5/2) | 4253.7 3 ? | 100 | 0 | 5/2+ | ||
4265.50 16 | A | 3/2(-),5/2(-) | 2783.3 4 2897.6 5 4171.7 3 4265.45 21 | 23 4 14 3 19.5 21 100 6 | 1482.12 1367.76 93.628 0 | (3/2)+ 5/2+ | ||
4278.1 21 | BC | (21/2+) | 331.8 3 | 100 | D | 3946.3 | (19/2-) | |
4327.73 19 | A | 1/2(-) TO 5/2(-) | 2263.1 3 3284.7 8 3888.4 4 4234.1 3 | 54 11 57 17 100 13 77 8 | 2064.66 1042.034 439.159 93.628 | 1/2(+),3/2,5/2 (+) (+) (3/2)+ | ||
4358.37 16 | A | (3/2-,5/2-) | 912.8 4 ? 993.69 13 2990.6 5 4357.9 7 | 24 8 100 9 67 17 18 6 | 3446.58 3364.68 1367.76 0 | 1/2(+),3/2,5/2 1/2,3/2,5/2 5/2+ | ||
4391.0 4 ? | A | (1/2+,3/2,5/2) | 2448.5 7 ? 4297.1 4 ? 4391.3 9 ? | 100 32 77 11 36 11 | 1942.91 93.628 0 | (1/2+,3/2,5/2) (3/2)+ 5/2+ | ||
4453.0 3 ? | A | (1/2+,3/2,5/2) | 1794.5 6 ? 3410.7 8 ? 4453.1 4 ? | 86 26 56 37 100 12 | 2657.89 1042.034 0 | 1/2(-) TO 5/2(-) (+) 5/2+ | ||
4461 | C | 1346.4 3 | 100 | 3116.3 | (15/2-) | |||
4625.8 19 | BC | 1509.1 5 | 100 | 3116.3 | (15/2-) | |||
4680? | C | 1564.4 5 | 100 | 3116.3 | (15/2-) | |||
4689 | C | 1574.2 5 | 100 | 3116.3 | (15/2-) | |||
4793.1 3 | A | (3/2-,5/2-) | 749.73 25 ? 1149.7 7 ? 4699.3 7 ? | 100 18 61 24 15 9 | 4043.33 3643.81 93.628 | 3/2(-),5/2(-) (1/2+,3/2,5/2) (3/2)+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4830.6 19 | BC | 1713.0 5 | 100 | 3116.3 | (15/2-) | |||
5003.3 20 | BC | 174.3 5 313.1 5 377.5 5 | 26 4 100 29 | D | 4830.6 4689 4625.8 | |||
5249 | C | 246.4 3 | 100 | 5003.3 | ||||
5365? | C | 685.7 5 ? | 100 | 4680 | ||||
5742 | C | 493.1 5 | 100 | D | 5249 |
E(level): From least-squares fit to Eγ, omitting the 1024γ and including tentatively-placed gammas only when there is no definitely-placed γ deexciting the same level. An uncertainty of 1 keV was assigned to Eγ data for which the authors did not state an uncertainty.
Jπ(level): Values given without comment are from 173Yb(24Mg,Fxnγ). Supported by deduced band structure and multipolarities from DCO ratios
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - ν(1d5/23) STATES (2002St06). | |||||||
0 | 5/2+ | 9.65 h 6 % β- = 100 | |||||
993.5 10 | (9/2+) | 993.2 1 | 100 | 0 | 5/2+ | ||
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - π=- INTRUDER STATES (2013Hw01). | |||||||
3116.3 17 | (15/2-) | ||||||
3576.0 17 | (17/2-) | 271.4 5 459.5 1 | 21 3 100 7 | 3304.4 3116.3 | (15/2-) (15/2-) | ||
3946.3 18 | (19/2-) | 370.2 3 829.7 3 | 100 6 94 11 | D | 3576.0 3116.3 | (17/2-) (15/2-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
93.628 | (3/2)+ | 89.4 ns 16 | 93.628 4 | E2(+M1) | 3.3 GT | 1.25 | B(E2)(W.u.)>14, B(M1)(W.u.)<1.2E-5, α=1.25 5 |
439.159 | (+) | 345.52 3 | (M1,E2) | 0.009 | α=0.009 3 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 5/2+ | 9.65 h 6 % β- = 100 | Q=+0.045 11, μ=-0.885 2 Δ<r2>(91Sr-88Sr)=0.374, uncertainty 0.003 (statistical), 0.016 (systematic) (1990Bu12). E(level): Δ<r2>(91Sr-88Sr)=0.374, uncertainty 0.003 (statistical), 0.016 (systematic) (1990Bu12). ν(1d5/23) STATES (2002St06). |
993.5 | (9/2+) | E(level): ν(1d5/23) STATES (2002St06). | |
3116.3 | (15/2-) | E(level): From 159Tb(36S,Fγ). π=- INTRUDER STATES (2013Hw01). | |
3576.0 | (17/2-) | E(level): From 159Tb(36S,Fγ). π=- INTRUDER STATES (2013Hw01). | |
3946.3 | (19/2-) | E(level): From 159Tb(36S,Fγ). π=- INTRUDER STATES (2013Hw01). |
E(level) | E(gamma) | Comments |
993.5 | 993.2 | E(γ): Transition tentatively placed by the evaluator. |
2077.5 | 1083.6 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). M(γ): From 159Tb(36S,Fγ). |
3116.3 | 1038.3 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). M(γ): From 159Tb(36S,Fγ). |
3304.4 | 1225.7 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). |
3576.0 | 271.4 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ).. Other Iγ: 41 8 from 173Yb(24Mg,Fxnγ). | 459.5 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). |
3946.3 | 370.2 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). M(γ): From 159Tb(36S,Fγ). | 829.7 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ).. Other Iγ: 75 14 from (24Mg,Fxnγ). |
4278.1 | 331.8 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). M(γ): d ΔJ=1 from (36S,Fγ); possibly E1, analogous to 89Sr (2013Hw01). However, 2002St06 suggested M1 instead.. From 159Tb(36S,Fγ). |
4358.37 | 912.8 | E(γ): Transition tentatively placed by the evaluator. |
4461 | 1346.4 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). |
4625.8 | 1509.1 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). |
4680 | 1564.4 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). |
4689 | 1574.2 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). |
4830.6 | 1713.0 | E(γ): From 159Tb(36S,Fγ).. Other Eγ: 1714.4 from (24Mg,Fxnγ). I(γ): From 159Tb(36S,Fγ). |
5003.3 | 174.3 | E(γ): Eγ: from 159Tb(36S,Fγ). Other Eγ (Iγ): 172.9 (<206) from (24Mg,Fxnγ). I(γ): Eγ: from 159Tb(36S,Fγ). Other Eγ (Iγ): 172.9 (<206) from (24Mg,Fxnγ). | 313.1 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). | 377.5 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). M(γ): From 159Tb(36S,Fγ). |
5249 | 246.4 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). |
5365 | 685.7 | E(γ): From 159Tb(36S,Fγ).. For contaminated line. I(γ): From 159Tb(36S,Fγ). |
5742 | 493.1 | E(γ): From 159Tb(36S,Fγ). I(γ): From 159Tb(36S,Fγ). M(γ): From 159Tb(36S,Fγ). |
Theory (partial list):
Nuclear structure: 1978Ba70, 1973Wa36 (shell-model calculations).
For recent isotope shift data see 1990Bu12.
Other reactions:
90Sr(n,γ) E=thermal (2001Na43): measured capture σ (=10.1 mb 13) and resonance integral (=104 mb 16) using an activation method.
Q-value: Q(βn)=-5229 6 (2012Wa38).