ADOPTED LEVELS, GAMMAS for 94Rb
Authors: A. Negret, A.A. Sonzogni | Citation: ENSDF | Cutoff date: 31-Mar-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=10283 keV 3 | S(n)= 4014 keV 8 | S(p)= 11716 keV 4 | Q(α)= -6987 keV 4 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 94Kr β- decay | B | 235U(n,Fγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 3(-) | 2.702 s 5 % β- = 100 % β-n = 10.5 4 | |||||
| 4.54 11 | A | |||||||
| 190.87 11 | A | 2.5 ns 8 | 186.320 7 191.5 10 ? | 100 6 13.6 13 | 4.54 0.0 | 3(-) | ||
| 217.3 8 | B | (4-) | 217.2 | 100 | 0.0 | 3(-) | ||
| 223.82 10 | A | 219.466 52 | 100 | 4.54 | ||||
| 292.72 11 | A | 288.175 16 | 100 | 4.54 | ||||
| 328.3 8 | B | (5-) | 111.1 328.4 | | 217.3 0.0 | (4-) 3(-) | ||
| 359.01 10 | A | (1,2,3) | 135.190 6 167.3 1 354.51 6 359.0 1 | 35 3 84 14 73 5 100 16 | 223.82 190.87 4.54 0.0 | 3(-) | ||
| 394.7 3 | A | (1,2,3) | 203.4 10 ? 394.9 8 | 16.7 19 100 3 | 190.87 0.0 | 3(-) | ||
| 528.1 11 | B | (5) | 310.8 | 100 | 217.3 | (4-) | ||
| 667.6 9 | B | (6-) | 339.2 450.2 | | 328.3 217.3 | (5-) (4-) | ||
| 696.5 9 | B | (6-) | 168.4 368.3 479.3 | | 528.1 328.3 217.3 | (5) (5-) (4-) | ||
| 866.4 8 ? | A | 471.6 8 ? | 100 | 394.7 | (1,2,3) | |||
| 988.34 13 | A | (1+) | 121 2 ? 593.7 3 629.3 1 695.8 3 764.5 2 985 1 ? | 4.9 5 16 4 100 25.2 18 71 8 1.8 3 | 866.4 394.7 359.01 292.72 223.82 4.54 | (1,2,3) (1,2,3) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 1288.5 11 | B | (7) | 960.2 | 100 | 328.3 | (5-) | ||
| 1315.5 10 | B | (7-) | 27S 619.0 647.8 | | 1288.5 696.5 667.6 | (7) (6-) (6-) | ||
| 1316.5 10 | B | (7-) | 648.8 988.2 | | 667.6 328.3 | (6-) (5-) | ||
| 1485.2 10 | B | (8+) | 18 ns 1 | 168.7 169.8 817.7 | | 1316.5 1315.5 667.6 | (7-) (7-) (6-) | |
| 1660.5 14 | B | (8) | 345.0 | 100 | 1315.5 | (7-) | ||
| 2074.9 14 | B | (10-) | 107 ns 16 | 589.7 | 100 | [M2] | 1485.2 | (8+) |
| 2192.3 14 | B | (9) | 707.0 | 100 | 1485.2 | (8+) | ||
| 2567.0 14 | B | (10-) | 1081.7 | 100 | 1485.2 | (8+) | ||
| 2634.1 14 | B | (10-) | 1148.8 | 100 | 1485.2 | (8+) | ||
| 2785.6 17 | B | (12-) | 710.9 | 100 | 2074.9 | (10-) | ||
| 2909.2 17 | B | (12) | 834 | 100 | 2074.9 | (10-) | ||
| 3335.0 18 | B | (12) | 1260 | 100 | 2074.9 | (10-) | ||
| 3679.4 17 | B | (14) | 770 894 | | 2909.2 2785.6 | (12) (12-) | ||
| 3711.5 18 | B | (14-) | 925.9 | 100 | 2785.6 | (12-) | ||
| 3944.2 19 | B | (15) | 232.7 264.7? | | 3711.5 3679.4 | (14-) (14) | ||
E(level): From a least-squares fit to Eγ, assuming ΔEγ=1 keV when unknown.
Jπ(level): The values for excited states populated in (n,Fγ) are deduced from gamma decay pattern and assuming spin increases with excitation energy. The values for the excited states populated in β- decay are obtained assuming that direct β feeding goes to a (1+) level which cascades down to a 3(-) g.s.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 2074.9 | (10-) | 107 ns 16 | 589.7 | [M2] | 0.00483 | B(M2)(W.u.)=0.20 3, α=0.00483 7, α(K)=0.00426 6, α(L)=0.000478 7, α(M)=7.91×10-5 11, α(N)=8.96E-6 13, α(O)=3.85E-7 6, α(N+)=9.35E-6 13 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 3(-) | 2.702 s 5 % β- = 100 % β-n = 10.5 4 | Q=+0.163 50, μ=+1.4984 18 %β-n: from weighted average of 10.9 7 (1993Ru01), 9.7 6 (1983Ok07), 11.1 9 (1981En05), 10.1 6 (1980Lu04), 9.7 5 (1979Ri09), 11.6 7 (1979WaZU), 13.7 10 (1977Re05), 9.6 8 (1975As04), 9.3 18 (1975Iz03), 12.1 13 (1974Ro15 recalibrated by 1981Bj01). E(level): %β-n: from weighted average of 10.9 7 (1993Ru01), 9.7 6 (1983Ok07), 11.1 9 (1981En05), 10.1 6 (1980Lu04), 9.7 5 (1979Ri09), 11.6 7 (1979WaZU), 13.7 10 (1977Re05), 9.6 8 (1975As04), 9.3 18 (1975Iz03), 12.1 13 (1974Ro15 recalibrated by 1981Bj01). |
| 190.87 | 2.5 ns 8 | T1/2(level): From γ(t) in 94Kr β- decay. | |
| 1485.2 | (8+) | 18 ns 1 | Configuration=πg9/2~#νg7/2. T1/2(level): From γγ(t) in 235U(n,Fγ). |
| 2074.9 | (10-) | 107 ns 16 | Configuration=πg9/2~#νh11/2. T1/2(level): From γγ(t) in 235U(n,Fγ). |
The possibility of a long-lived isomer at ≈220 keV (first proposed by 1979Ep01 and further discussed by 1982Pa24, 1983PaZQ, and 1982Br23) is rejected by 1984Ka24. From Iγ and I(K x-ray), 1984Ka24 deduce Iγ(IT)/Iγ(836.9γ)=3×10-4 if mult(IT)=M3. Although their half-life measurements result in somewhat different values for two groups of γ-rays belonging to different Qβ- values (2.700 s 7 compared to 2.654 s 9), 1984Ka24 conclude that this difference is too small to establish two separate half-lives.
2007Ra23: precise mass measurement using Pennning-trap system
Q-value: Note: Current evaluation has used the following Q record 10281 8 4013 9 11715 4 -6987 5 2011AuZZ
Q-value: S(2n)=9932 7, S(2p)=26907 8, Q(β-n)=3453 8 (2011AuZZ)