ADOPTED LEVELS, GAMMAS for 97Rb
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 30-OCT-2015
Author: N. Nica | Citation: Nucl. Data Sheets 111, 525 (2010) | Cutoff date: 19-Nov-2009
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=10063 keV 4 | S(n)= 5236 keV 4 | S(p)= 12728 keV 21 | Q(α)= -797×101 keV 45 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 97Rb IT decay (5.7 μs) | B | Coulomb Excitation |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 3/2+ | 169.1 ms 6 % β- = 100 % β-n = 25.5 9 % β-2n = ? | |||||
| 68.1 4 | B | (5/2+) | 68.1 | 100 | [M1+E2] | 0.0 | 3/2+ | |
| 76.6 2 | A | (1/2,3/2)- | 5.7 µs 6 % IT = 100 | 76.6 2 | 100 | E1 | 0.0 | 3/2+ |
| 191.8 4 | B | (7/2+) | 123.7 191.8 | 100 3 7.4 3 | [M1+E2] [E2] | 68.1 0.0 | (5/2+) 3/2+ | |
| 294.9 5 | B | (9/2+) | 103.1 226.8 | 100.0 19 23.9 10 | [M1+E2] [E2] | 191.8 68.1 | (7/2+) (5/2+) | |
| 537.6 6 | B | (11/2+) | 242.7 345.8 | 100 3 40.0 21 | [M1+E2] [E2] | 294.9 191.8 | (9/2+) (7/2+) | |
| 674.1 6 | B | (13/2+) | 136.5 379.2 | 61 11 100 9 | [M1+E2] [E2] | 537.6 294.9 | (11/2+) (9/2+) | |
| 1029.6 7 | B | (15/2+) | 355.5 492.0 | 100 17 61 11 | [M1+E2] [E2] | 674.1 537.6 | (13/2+) (11/2+) | |
E(level): From Coulomb excitation data, except for the 76.6-keV isomer
Jπ(level): The 68.1 and all levels above 76.6 keV are assigned (2015So20) as members of π3/2[431] band
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Band built on π3/2[431]. | |||||||
| 68.1 4 | (5/2+) | ||||||
| 191.8 4 | (7/2+) | 123.7 191.8 | 100 3 7.4 3 | [M1+E2] [E2] | 68.1 0.0 | (5/2+) 3/2+ | |
| 294.9 5 | (9/2+) | 103.1 226.8 | 100.0 19 23.9 10 | [M1+E2] [E2] | 191.8 68.1 | (7/2+) (5/2+) | |
| 537.6 6 | (11/2+) | 242.7 345.8 | 100 3 40.0 21 | [M1+E2] [E2] | 294.9 191.8 | (9/2+) (7/2+) | |
| 674.1 6 | (13/2+) | 136.5 379.2 | 61 11 100 9 | [M1+E2] [E2] | 537.6 294.9 | (11/2+) (9/2+) | |
| 1029.6 7 | (15/2+) | 355.5 492.0 | 100 17 61 11 | [M1+E2] [E2] | 674.1 537.6 | (13/2+) (11/2+) | |
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 68.1 | (5/2+) | 68.1 | [M1+E2] | 2.2 | α=2.2 18, α(K)=1.8 15, α(L)=0.34 30, α(M)=0.056 49, α(N)=0.0056 49, α(O)=1.31×10-4 98 | |
| 76.6 | (1/2,3/2)- | 5.7 µs 6 % IT = 100 | 76.6 2 | E1 | 0.211 | α=0.211 4, α(K)=0.187 3, α(L)=0.0206 4, α(M)=0.00337 6, α(N)=0.000370 6, α(O)=1.441×10-5 23 |
| 191.8 | (7/2+) | 123.7 | [M1+E2] | 0.26 | α=0.26 19, α(K)=0.23 16, α(L)=0.031 23, α(M)=0.0051 38, α(N)=5.4×10-4 40, α(O)=1.8E-5 12 | |
| (7/2+) | 191.8 | [E2] | 0.0888 | α=0.0888, α(K)=0.0773 11, α(L)=0.00974 14, α(M)=0.001605 23, α(N)=0.0001735 25, α(O)=6.21×10-6 9 | ||
| 294.9 | (9/2+) | 103.1 | [M1+E2] | 0.50 | α=0.50 37, α(K)=0.43 31, α(L)=0.063 50, α(M)=0.0104 82, α(N)=0.00109 84, α(O)=3.3×10-5 23 | |
| (9/2+) | 226.8 | [E2] | 0.0485 | α=0.0485, α(K)=0.0424 6, α(L)=0.00518 8, α(M)=0.000853 12, α(N)=9.30×10-5 13, α(O)=3.45E-6 5 | ||
| 537.6 | (11/2+) | 242.7 | [M1+E2] | 0.026 | α=0.026 13, α(K)=0.023 11, α(L)=0.0027 14, α(M)=4.4×10-4 22, α(N)=4.9E-5 24, α(O)=1.91E-6 83 | |
| (11/2+) | 345.8 | [E2] | 0.01118 | α=0.01118, α(K)=0.00983 14, α(L)=0.001137 16, α(M)=0.000187 3, α(N)=2.07×10-5 3, α(O)=8.23E-7 12 | ||
| 674.1 | (13/2+) | 136.5 | [M1+E2] | 0.19 | α=0.19 13, α(K)=0.16 11, α(L)=0.021 16, α(M)=0.0035 25, α(N)=3.8×10-4 27, α(O)=1.28E-5 79 | |
| (13/2+) | 379.2 | [E2] | 0.00823 | α=0.00823, α(K)=0.00725 11, α(L)=0.000830 12, α(M)=0.0001368 20, α(N)=1.52×10-5 2, α(O)=6.10E-7 9 | ||
| 1029.6 | (15/2+) | 355.5 | [M1+E2] | 0.0078 | α=0.0078 25, α(K)=0.0068 22, α(L)=7.7×10-4 26, α(M)=1.28E-4 43, α(N)=1.43E-5 47, α(O)=5.8E-7 17 | |
| (15/2+) | 492.0 | [E2] | 0.00360 | α=0.00360, α(K)=0.00318 5, α(L)=0.000357 5, α(M)=5.88×10-5 9, α(N)=6.58E-6 10, α(O)=2.71E-7 4 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 3/2+ | 169.1 ms 6 % β- = 100 % β-n = 25.5 9 % β-2n = ? | μ=+1.8410 21 (1981Th04,2014StZZ), Q=+0.70 15 (1981Th04,2013StZZ) Total of 291 implantations observed, and 164 correlated decay sequences (2012Qu01). E(level): Total of 291 implantations observed, and 164 correlated decay sequences (2012Qu01). |
| 68.1 | (5/2+) | E(level): Band built on π3/2[431]. | |
| 191.8 | (7/2+) | E(level): Band built on π3/2[431]. | |
| 294.9 | (9/2+) | E(level): Band built on π3/2[431]. | |
| 537.6 | (11/2+) | E(level): Band built on π3/2[431]. | |
| 674.1 | (13/2+) | E(level): Band built on π3/2[431]. | |
| 1029.6 | (15/2+) | E(level): Band built on π3/2[431]. |
| E(level) | E(gamma) | Comments |
| 76.6 | 76.6 | M(γ): from α(K)(exp) |
97Rb isotope was identified by 1967Kl06 in 238U(p,F),E=150 MeV at Orsay, later followed up at the same laboratory by 1969Am01 to the half-life and delayed-neutron emission probability. α large number of half-life and %β-n measurements by different groups were made in subsequent years due to the interest in its beta-delayed neutron activity
Mass measurements: 2012Si10, 2008Su19, 2007Ra23, 2006Ha23
1981Th04: experimental mean square radius, isotope shift, μ, Q
All measurements deal with mass separated fission products.
2013Fa05: theoretical calculation of half-life and %|B-n
2010Ro31: theoretical structure calculations
1985Me20: theoretical structure calculations, shape coexistence
Gammas: B(E2) and B(M1) matrix elements deduced from Coulomb excitation experiment (2015So20) are listed in the Coulomb Excitation dataset
Q-value: S(2n)=8768 20, S(2p)=29330 200 (syst), Q(β-n)=6339 9 (2012Wa38)