ADOPTED LEVELS, GAMMAS for 92Sr
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 113, 2187 (2012) | Cutoff date: 15-Sep-2012
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=1950 keV 10 | S(n)= 7286 keV 7 | S(p)= 12411 keV 9 | Q(α)= -5601 keV 5 | ||
Reference: 2012WA38 |
References: | |||
A | 92Rb β- decay | B | 93Rb β-n decay |
C | 94Zr(6Li,8B) | D | 208Pb(18O,FXNG) |
E | 159Tb(36S,FXNG) | F | 248Cm SF decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCDEF | 0+ | 2.611 h 17 % β- = 100 | |||||
814.98 3 | ABCDEF | 2+ | 8 ps 3 | 814.98 3 | 100 | E2 | 0.0 | 0+ |
1384.79 9 | ABC | 2+ | 5.1 ps 24 | 569.8 1 1384.6 3 | 100 6 65 12 | (M1+E2) E2 | 814.98 0.0 | 2+ 0+ |
1673.3 4 | DEF | (4)+ | 858.4 5 | 100 | E2 | 814.98 | 2+ | |
1778.33 12 | AB | 2(+) | ≤ 5.0 ps | 393.5 1 963.5 2 1778.3 10 | 83 4 100 9 24 13 | (M1) (E2+M1) | 1384.79 814.98 0.0 | 2+ 2+ 0+ |
2053.9 6 | A | (2+) | 1238.9 6 | 100 | (E2+M1) | 814.98 | 2+ | |
2088.39 17 | A | 0(+) | 703.6 3 1273.4 2 | 47 10 100 13 | (E2) (E2) | 1384.79 814.98 | 2+ 2+ | |
2140.82 14 | A | 1+ | 7.1 ps 25 | 756.0 2 1325.8 2 | 81 7 100 12 | M1(+E2) E2+M1 | 1384.79 814.98 | 2+ 2+ |
2185.0 4 | DEF | (3-) | 512.2 1370.0 5 | | D | 1673.3 814.98 | (4)+ 2+ | |
2527.18 18 | A | 0+ | 6 ps 4 | 386.1 3 1712.3 2 | 5.8 10 100 8 | (M1) E2 | 2140.82 814.98 | 1+ 2+ |
2765.7 5 | DEF | (5-) | 580.7 5 1092.3 5 | 58.0 17 100.0 22 | D | 2185.0 1673.3 | (3-) (4)+ | |
2783.6 4 | A | 1399.0 6 1968.6 6 | 76 24 100 29 | 1384.79 814.98 | 2+ 2+ | |||
2820.89 18 | A | 2(+),(1) | 2006.5 5 2820.6 2 | 12 3 100 7 | 814.98 0.0 | 2+ 0+ | ||
2849.6 6 | A | 1071.4 1464.7 6 | 33 100 33 | 1778.33 1384.79 | 2(+) 2+ | |||
2924.8 7 | E | 1251.4 5 | 100 | 1673.3 | (4)+ | |||
3014.6 6 | EF | 1341.2 5 | 100 | 1673.3 | (4)+ | |||
3128.8 7 | EF | (6+) | 1455.4 5 | 100 | 1673.3 | (4)+ | ||
3362.4 5 | EF | (5-) | 597.2 1177.4 5 1689.0 5 | 100 3 36.4 21 | 2765.7 2185.0 1673.3 | (5-) (3-) (4)+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3558.5 7 | DEF | (6-,7-) | 792.8 5 | 100 | 2765.7 | (5-) | ||
3786.0 7 | DEF | (6-,7-) | 771.3 5 1020.6 | ≥24 100 3 | 3014.6 2765.7 | (5-) | ||
4021.4 9 | EF | (6-,7-) | 235.4 5 658.9 5 | 59.6 22 100 4 | (D) | 3786.0 3362.4 | (6-,7-) (5-) | |
4637.8 5 | A | 1 | 1816.7 5 2860.3 21 3823.6 16 4637.7 9 | 27 6 12 12 16 10 100 13 | 2820.89 1778.33 814.98 0.0 | 2(+),(1) 2(+) 2+ 0+ | ||
4928.5 9 | EF | (8-,9-) | 1142.5 5 1799.6 5 ? | 100 4 31 3 | 3786.0 3128.8 | (6-,7-) (6+) | ||
5053.8 4 | A | 1 | 2232.0 5 2913.2 6 3670.8 12 4240.4 16 | 100 25 92 25 54 25 42 25 | 2820.89 2140.82 1384.79 814.98 | 2(+),(1) 1+ 2+ 2+ | ||
5056.7 10 | E | 1035.3 5 | 100 | 4021.4 | (6-,7-) | |||
5727.2 10 | E | 798.7 5 | 100 | 4928.5 | (8-,9-) | |||
5738.4 9 | A | 1 | 4922.6 11 5739.4 14 | 100 18 64 24 | 814.98 0.0 | 2+ 0+ | ||
5893.6 7 | A | 1(-) | 3110.0 7 4508.2 12 | 100 30 63 17 | 2783.6 1384.79 | 2+ | ||
5901.1 10 | A | 1(-) | 5086.2 12 5900.6 14 | 93 43 100 29 | 814.98 0.0 | 2+ 0+ | ||
6003.5 7 | A | 1- | 5188.1 8 6004.1 15 | 100 17 24 8 | 814.98 0.0 | 2+ 0+ | ||
6030.0 8 | A | 1- | 3502.0 16 5215.1 10 6030.0 15 | 33 21 100 36 73 21 | 2527.18 814.98 0.0 | 0+ 2+ 0+ | ||
6116.1 10 | A | 1- | 5301.7 13 6114.8 15 | 100 32 100 32 | 814.98 0.0 | 2+ 0+ | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
6527.7 12 ? | E | 800.5 5 ? | 100 | 5727.2 | ||||
6949.1 7 ? | A | 0-,1- | 1895.1 6 ? 4809.3 15 ? | 53 16 100 50 | 5053.8 2140.82 | 1 1+ | ||
7363.0 8 | A | 1- | 4835.9 11 5584.2 11 | 62 16 100 20 | 2527.18 1778.33 | 0+ 2(+) |
E(level): From least-squares fit to Eγ, allowing 1 keV uncertainty in Eγ data (3 lines) for which the authors do not state the uncertainty.
Jπ(level): Values given without comment are tentative values from 159Tb(36S,Fxnγ), consistent with DCO measurements but suggested primarily by analogy with 90Sr which exhibits a very similar level sequence.
T1/2(level): From βγγ(t) in Rb β- decay, except as noted.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - π=+ SEQUENCE. | |||||||
0.0 | 0+ | 2.611 h 17 % β- = 100 | |||||
814.98 3 | 2+ | 8 ps 3 | 814.98 3 | 100 | E2 | 0.0 | 0+ |
1673.3 4 | (4)+ | 858.4 5 | 100 | E2 | 814.98 | 2+ |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Additional Data |
814.98 | 2+ | 8 ps 3 | 814.98 3 | E2 | B(E2)(W.u.)=8 3 | |
1384.79 | 2+ | 5.1 ps 24 | 569.8 1 | (M1+E2) | +0.21 2 | B(E2)(W.u.)=1.9 10, B(M1)(W.u.)=0.014 7 |
2+ | 5.1 ps 24 | 1384.6 3 | E2 | B(E2)(W.u.)=0.35 18 | ||
1778.33 | 2(+) | ≤ 5.0 ps | 393.5 1 | (M1) | B(M1)(W.u.)≥0.029 | |
2(+) | ≤ 5.0 ps | 963.5 2 | (E2+M1) | +1.7 +13-15 | B(E2)(W.u.)≥1.2 | |
2140.82 | 1+ | 7.1 ps 25 | 756.0 2 | M1(+E2) | -0.09 3 | B(E2)(W.u.)=0.05 4, B(M1)(W.u.)=0.0032 12 |
1+ | 7.1 ps 25 | 1325.8 2 | E2+M1 | -0.27 5 | B(E2)(W.u.)=0.030 16, B(M1)(W.u.)=0.0007 3 | |
2527.18 | 0+ | 6 ps 4 | 386.1 3 | (M1) | B(M1)(W.u.)=0.0035 25 | |
0+ | 6 ps 4 | 1712.3 2 | E2 | B(E2)(W.u.)=0.25 17 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 0+ | 2.611 h 17 % β- = 100 | Δ<r2>(88Sr,92Sr)=0.512; uncertainty is 0.005 (statistical only), 0.021 (systematic included) (1990Bu12). For discussion of differential changes in Δ<r2>, see 1996Li25. E(level): Δ<r2>(88Sr,92Sr)=0.512; uncertainty is 0.005 (statistical only), 0.021 (systematic included) (1990Bu12). For discussion of differential changes in Δ<r2>, see 1996Li25. From 208Pb(18O,Fxnγ). π=+ SEQUENCE. |
814.98 | 2+ | 8 ps 3 | E(level): From 208Pb(18O,Fxnγ). π=+ SEQUENCE. |
1673.3 | (4)+ | E(level): From 208Pb(18O,Fxnγ). π=+ SEQUENCE. | |
3558.5 | (6-,7-) | XREF: d(4579). Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy. | |
3786.0 | (6-,7-) | Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy. | |
4021.4 | (6-,7-) | Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy. | |
4928.5 | (8-,9-) | Configuration involves (ν g7/2)#(ν h11/2) (2009Rz01). E(level): Configuration involves (ν g7/2)#(ν h11/2) (2009Rz01). Jπ(level): From 248Cm SF decay, assuming that M2 transitions are unlikely if Eγ<1200, and that such a reaction predominantly populates yrast states in the secondary fission fragments so J is expected to rise with increasing level energy. |
E(level) | E(gamma) | Comments |
814.98 | 814.98 | M(γ): Q ΔJ=2 from γγ(θ) in 248Cm SF decay; not M2 from RUL. |
1384.79 | 569.8 | M(γ): D+Q from γγ(θ); adopted Δπ=no. | 1384.6 | M(γ): Q to 0+ in γγ(θ); not M2 from RUL. |
1673.3 | 858.4 | E(γ): From 159Tb(36S,Fxnγ). M(γ): Q from DCO ratio in 159Tb(36S,Fxnγ); partial T1/2<5 ns because seen in prompt coin in 248Cm SF decay, so not M2 from RUL. |
1778.33 | 393.5 | M(γ): d from γγ(θ) in β- decay; Δπ=(no) from level scheme. | 963.5 | M(γ): Q(+D) with significant Q component (from γγ(θ)). |
2053.9 | 1238.9 | M(γ): Q(+D) from γγ(θ) with large Q component. |
2088.39 | 703.6 | M(γ): Q from γγ(θ); J=0 to Jπ=2+ transition. | 1273.4 | M(γ): Q from γγ(θ); J=0 to Jπ=2+ transition. |
2140.82 | 756.0 | M(γ): d(+Q) from γγ(θ); adopted Δπ=no. | 1325.8 | M(γ): D+Q from γγ(θ); not E1+M2 from RUL. |
2185.0 | 512.2 | E(γ): From 208Pb(18O,Fxnγ). | 1370.0 | E(γ): From 159Tb(36S,Fxnγ). M(γ): d ΔJ=1 from γγ(θ) in 248Cm SF decay. |
2765.7 | 580.7 | E(γ): From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). | 1092.3 | E(γ): From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). M(γ): from DCO ratio in 159Tb(36S,Fxnγ). |
2924.8 | 1251.4 | E(γ): From 159Tb(36S,Fxnγ). |
3014.6 | 1341.2 | E(γ): for contaminated line; Eγ=1342.3 in 248Cm SF decay.. From 159Tb(36S,Fxnγ). |
3128.8 | 1455.4 | E(γ): From 159Tb(36S,Fxnγ). |
3362.4 | 597.2 | E(γ): from 248Cm SF decay | 1177.4 | E(γ): From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). | 1689.0 | E(γ): From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). |
3558.5 | 792.8 | E(γ): for contaminated line; 792.8 from 248Cm SF decay also. γ is placed differently in 208Pb(18O,Fxnγ) (feeding a 3786 level), implying a 4579 level which has not been adopted by the evaluator.. From 159Tb(36S,Fxnγ). |
3786.0 | 771.3 | E(γ): for contaminated line. Other Eγ: 771.3 in 248Cm SF decay.. From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). | 1020.6 | E(γ): From 208Pb(18O,Fxnγ). I(γ): from 159Tb(36S,Fxnγ). |
4021.4 | 235.4 | E(γ): for contaminated line.. From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). M(γ): from DCO ratio in 159Tb(36S,Fxnγ). | 658.9 | E(γ): From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). |
E(level) | E(gamma) | Comments |
4928.5 | 1142.5 | E(γ): From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). | 1799.6 | E(γ): From 159Tb(36S,Fxnγ). I(γ): From 159Tb(36S,Fxnγ). |
5056.7 | 1035.3 | E(γ): From 159Tb(36S,Fxnγ). |
5727.2 | 798.7 | E(γ): From 159Tb(36S,Fxnγ). |
6527.7 | 800.5 | E(γ): From 159Tb(36S,Fxnγ). |
For isotope shift data, see 1990Bu12.
For shell-model calculations see, e.g., 1973Wa36, 1978Ba70, 2002St06, 2003Hw01, 2009Rz01.
Q-value: Note: Current evaluation has used the following Q record
Q-value: Q(β-),S(n),S(p),Q(α): from 2011AuZZ; values are 1946 9, 7294 6, 12411 9, -5600 14, respectively, from 2003Au03.