ADOPTED LEVELS, GAMMAS for 91Kr
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-)=6771 keV 8 | S(n)= 4086 keV 3 | S(p)= 14263 keV 4 | Q(α)= -6973 keV 3 | ||
Reference: 2012WA38 |
References: | |||
A | 91Br β- decay | B | 92Br β-n decay |
C | 252Cf SF decay |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | ABC | 5/2(+) | 8.57 s 4 % β- = 100 | |||||
144.3 6 | AB | (3/2+) | 56 ns | 144.1 | 100 | E2 | 0 | 5/2(+) |
300.7 5 | AB | 301.4 | 100 | 0 | 5/2(+) | |||
482.8 6 | AB | 338.4 482.8 | 30 100 | 144.3 0 | (3/2+) 5/2(+) | |||
707.0 7 | AB | 406.4 707.0 | 9 100 | 300.7 0 | 5/2(+) | |||
781.4 7 | AB | 780.5 | 100 | 0 | 5/2(+) | |||
843.9 6 | AB | 361.7 542.7 699.5 844 | 100 91 27 | 482.8 300.7 144.3 0 | (3/2+) 5/2(+) | |||
966.7 9 | B | 666.4 822.0 | 50 100 | 300.7 144.3 | (3/2+) | |||
1120.2 6 | AB | 637 818.7 976.4 1121 | 100 50 | 482.8 300.7 144.3 0 | (3/2+) 5/2(+) | |||
1155.5 | C | 1155.5 | 100 | 0 | 5/2(+) | |||
1210.1 10 | A | |||||||
1356.8 12 | B | 874.0 | 100 | 482.8 | ||||
1419.5 12 | B | 1118.8 | 100 | 300.7 | ||||
1422.0 8 | A | 715 1422 | | 707.0 0 | 5/2(+) | |||
1916.2 | C | 760.7 | 100 | 1155.5 | ||||
1917.0 10 | A | 1917 | 100 | 0 | 5/2(+) | |||
2144.7 8 | A | 1363 2145 | | 781.4 0 | 5/2(+) | |||
3675.1 6 | A | 2465 2893 3191 3377 3674 | | 1210.1 781.4 482.8 300.7 0 | 5/2(+) | |||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3734.7 8 | A | 3590 3735 | | 144.3 0 | (3/2+) 5/2(+) | |||
3773.8 9 | A | 3292 3472 | | 482.8 300.7 | ||||
3919.3 10 | A | 2709 3775 | | 1210.1 144.3 | (3/2+) | |||
4153.8 12 | A | 3853 | 100 | 300.7 | ||||
4452.9 12 | A | 3970 | 100 | 482.8 |
E(level): From least-squares fit to Eγ assigning an uncertainty of 1 keV to all data (authors did not state uncertainties).
T1/2(level): From 91Br β- decay, except as noted.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
144.3 | (3/2+) | 56 ns | 144.1 | E2 | 0.240 | B(E2)(W.u.)=5.4, α=0.240 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 5/2(+) | 8.57 s 4 % β- = 100 | Q=+0.30 3 (1995Ke04), μ=-0.583 2 (1995Ke04) Δ<r2>(91Kr-86Kr)=0.597, uncertainty 0.006 (statistical only), 0.020 (systematic included), 0.114 (including uncertainties arising from evaluation of isotope shifts) (1995Ke04). E(level): Δ<r2>(91Kr-86Kr)=0.597, uncertainty 0.006 (statistical only), 0.020 (systematic included), 0.114 (including uncertainties arising from evaluation of isotope shifts) (1995Ke04). |
E(level) | E(gamma) | Comments |
300.7 | 301.4 | E(γ): From 92Br β-n decay. |
482.8 | 338.4 | E(γ): From 92Br β-n decay. | 482.8 | E(γ): From 92Br β-n decay. |
707.0 | 406.4 | E(γ): From 92Br β-n decay. | 707.0 | E(γ): From 92Br β-n decay. |
781.4 | 780.5 | E(γ): From 92Br β-n decay. |
843.9 | 361.7 | E(γ): From 92Br β-n decay. | 542.7 | E(γ): From 92Br β-n decay. | 699.5 | E(γ): From 92Br β-n decay. |
966.7 | 666.4 | E(γ): From 92Br β-n decay. | 822.0 | E(γ): From 92Br β-n decay. |
1120.2 | 818.7 | E(γ): From 92Br β-n decay. | 976.4 | E(γ): From 92Br β-n decay. |
1155.5 | 1155.5 | E(γ): From 252Cf SF decay. I(γ): From 252Cf SF decay. |
1356.8 | 874.0 | E(γ): From 92Br β-n decay. |
1419.5 | 1118.8 | E(γ): From 92Br β-n decay. |
1916.2 | 760.7 | E(γ): From 252Cf SF decay. I(γ): From 252Cf SF decay. |
Production: 91Br β- decay, 92Br β-n decay and 252Cf SF decay. Others (partial list): 248Cm(γ,F): (2005Ga25); 237Np(γ,F) (2005Ga50); 243Am(γ,F) (2005Ga50); 232Th(γ,F) (2003Ga21); 244Pu(γ,F) (2013Ga21); 238U(γ,F) (2003Ga21,2002Ib01); U(n,x), fast neutrons (2000Ka02,2000Lh02).
Q-value: Q(βn)=319 7 (2012Wa38).