ADOPTED LEVELS, GAMMAS for 89Kr
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 30-Nov-2021
Author: Balraj Singh | Citation: Nucl. Data Sheets 114, 1 (2013) | Cutoff date: 20-Oct-2012
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=5177 keV 6 | S(n)= 4916 keV 3 | S(p)= 13109 keV 4 | Q(α)= -6547 keV 3 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 89Br β- decay (4.357 S) | B | 90Br β-n decay (1.911 S) |
| C | 252Cf SF decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABC | 3/2(+) | 3.15 m 4 % β- = 100 | |||||
| 28.59 3 | ABC | (5/2+) | 21.7 ns 13 | 28.51 10 | 100 | [M1+E2] | 0.0 | 3/2(+) |
| 411.42 3 | AB | 382.87 5 411.49 4 | 18.2 9 100 6 | 28.59 0.0 | (5/2+) 3/2(+) | |||
| 982.07 4 | A C | (9/2+) | 953.53 4 | 100 | Q | 28.59 | (5/2+) | |
| 991.36 4 | AB | 580.03 4 962.70 4 991.35 15 | 28.3 17 100 4 22 4 | 411.42 28.59 0.0 | (5/2+) 3/2(+) | |||
| 1026.58 3 | AB | 997.93 4 1026.46 4 | 100 3 42.3 14 | 28.59 0.0 | (5/2+) 3/2(+) | |||
| 1097.835 25 | AB | 1069.24 7 1097.82 3 | 3.6 2 100 3 | 28.59 0.0 | (5/2+) 3/2(+) | |||
| 1379.85 3 | A | 282.1 2 353.08 5 397.94 5 1351.31 5 1379.80 4 | 2.9 9 5.1 11 4.4 3 100 6 63 4 | 1097.835 1026.58 982.07 28.59 0.0 | (9/2+) (5/2+) 3/2(+) | |||
| 1482.94 3 | A | 385.11 5 456.3 2 1454.22 7 1483.00 4 | 15.0 9 3.1 9 56 3 100 6 | 1097.835 1026.58 28.59 0.0 | (5/2+) 3/2(+) | |||
| 1536.37 4 | A | 554.37 5 1507.70 4 | 5.39 24 100 5 | 982.07 28.59 | (9/2+) (5/2+) | |||
| 1772.5 5 | C | (11/2-) | 790.0 | | D | 982.07 | (9/2+) | |
| 1833.92 8 | A | 807.33 8 | 100 | 1026.58 | ||||
| 1887.63 5 | A | 789.76 5 896.37 10 | 100 6 34 3 | 1097.835 991.36 | ||||
| 1894.59 7 | A | 1865.98 6 | 100 | 28.59 | (5/2+) | |||
| 1957.19 9 | A | 1928.44 13 1957.22 15 | 100 6 87 8 | 28.59 0.0 | (5/2+) 3/2(+) | |||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 2038.86 5 | A | 1012.25 4 | 100 | 1026.58 | ||||
| 2062.77 6 | A | 1036.13 7 1080.61 8 2034.49 13 | 65 3 53 3 100 7 | 1026.58 982.07 28.59 | (9/2+) (5/2+) | |||
| 2104.43 6 | A | 621.56 5 1122.08 10 | 38.1 17 100 8 | 1482.94 982.07 | (9/2+) | |||
| 2108.15 6 | A | 2108.16 6 | 100 | 0.0 | 3/2(+) | |||
| 2146.99 6 | A | 2118.40 6 | 100 | 28.59 | (5/2+) | |||
| 2216.67 7 | A | 1190.11 8 2216.60 12 | 39 3 100 9 | 1026.58 0.0 | 3/2(+) | |||
| 2278.5 5 | C | 1296.0 | | 982.07 | (9/2+) | |||
| 2298.48 8 | A | 2298.47 8 | 100 | 0.0 | 3/2(+) | |||
| 2373.72 7 | A | 1391.64 7 2345.33 10 | 60 3 100 8 | 982.07 28.59 | (9/2+) (5/2+) | |||
| 2426.36 14 | A | 1399.77 13 | 100 | 1026.58 | ||||
| 2468.2 10 | A | 1487.25 20 | 100 | 982.07 | (9/2+) | |||
| 2648.2 6 | C | 875.7 | | 1772.5 | (11/2-) | |||
| 2735.40 21 | A | 1355.54 20 | 100 | 1379.85 | ||||
| 2976.49 11 | A | 1994.40 10 | 100 | 982.07 | (9/2+) | |||
| 3215.0 6 | C | 936.5 | | 2278.5 | ||||
| 3318.4 3 | A | 1782 6 3289.8 3 | ≈100 100 13 | 1536.37 28.59 | (5/2+) | |||
| 3753.92 10 | A | 1606.93 10 1919.96 12 | 100 5 59 5 | 2146.99 1833.92 | ||||
| 3992.16 11 | A | 1693.71 12 2894.20 15 | 15.1 17 100 8 | 2298.48 1097.835 | ||||
| 4114.72 7 | A | 1741.34 12 2006.72 13 2075.61 13 2578.03 16 3017.0 7 3132.30 15 4086.3 3 | 11.3 10 27.7 16 14.3 13 46 5 10 3 15.7 13 100 10 | 2373.72 2108.15 2038.86 1536.37 1097.835 982.07 28.59 | (9/2+) (5/2+) | |||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 4165.88 10 | A | 1697.00 17 2208.59 12 2785.8 2 3174.6 2 4166.3 3 | 3.0 5 8.8 8 5.6 8 11.7 8 100 8 | 2468.2 1957.19 1379.85 991.36 0.0 | 3/2(+) | |||
| 4185.66 18 | A | 2228.42 20 4185.6 3 | 30 3 100 10 | 1957.19 0.0 | 3/2(+) | |||
| 4232.47 8 | A | 1858.73 5 4232.5 4 | 100 3 24 3 | 2373.72 0.0 | 3/2(+) | |||
| 4238.45 22 | A | 4209.9 3 4238.2 3 | 76 7 100 10 | 28.59 0.0 | (5/2+) 3/2(+) | |||
| 4248.8 3 | A | 3837.3 3 | 100 | 411.42 | ||||
| 4288.85 23 | A | 3877.0 8 4260.5 4 4288.6 3 | 36 12 78 8 100 10 | 411.42 28.59 0.0 | (5/2+) 3/2(+) | |||
| 4319.1 3 | A | 4319.0 3 | 100 | 0.0 | 3/2(+) | |||
| 4375.3 6 | C | 1160.3 | | 3215.0 | ||||
| 4381.70 7 | A | 1064.0 10 1915.23 8 2165.04 12 2234.81 15 2318.79 13 3001.60 13 3400.0 8 4353.6 3 | 10 5 31.1 15 31 3 20 2 22 2 38 3 15 5 100 9 | 3318.4 2468.2 2216.67 2146.99 2062.77 1379.85 982.07 28.59 | (9/2+) (5/2+) | |||
| 4403.0 4 | A | 4402.9 4 | 100 | 0.0 | 3/2(+) | |||
| 4510.5 4 | A | 4510.4 4 | 100 | 0.0 | 3/2(+) | |||
| 4516.00 18 | A | 3489.1 2 4516.9 4 | 74 8 100 10 | 1026.58 0.0 | 3/2(+) | |||
| 4530.3 3 | A | 4501.6 3 | 100 | 28.59 | (5/2+) | |||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 4610.7 4 | A | 2503.16 15 ? 4610.5 4 | 100 9 100 11 | 2108.15 0.0 | 3/2(+) | |||
| 4673.1 4 | A | 1697.00 17 ? 4672.9 4 | 45 7 100 12 | 2976.49 0.0 | 3/2(+) | |||
| 4707.3 4 | A | 4678.6 4 | 100 | 28.59 | (5/2+) | |||
E(level): From least-squares fit to Eγ data
Jπ(level): Spin assignments for only two levels are given above the first excited state. log ft values (in 89Br β- decay) from (3/2-,5/2-) suggest J|<7/2 for most states
E(γ): From 89Br β- decay, unless indicated otherwise.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - Band based on (5/2+). | |||||||
| 28.59 3 | (5/2+) | 21.7 ns 13 | |||||
| 982.07 4 | (9/2+) | 953.53 4 | 100 | Q | 28.59 | (5/2+) | |
| 2278.5 5 | 1296.0 | | 982.07 | (9/2+) | |||
| 3215.0 6 | 936.5 | | 2278.5 | ||||
| 4375.3 6 | 1160.3 | | 3215.0 | ||||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Conversion Coefficient | Additional Data |
| 28.59 | (5/2+) | 21.7 ns 13 | 28.51 10 | [M1+E2] | 0.24 LT | 6.9 | B(M1)(W.u.)=0.006 2, α=6.9 22 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 3/2(+) | 3.15 m 4 % β- = 100 | μ=-0.330 3 (1995Ke04,2019StZV), Q=+0.166 2 (1995Ke04,2016St14,2021StZZ) Δ<r2>(86Kr-89Kr)=0.379 fm2 71 (1995Ke04). |
| 28.59 | (5/2+) | 21.7 ns 13 | E(level): Band based on (5/2+). |
| 982.07 | (9/2+) | E(level): Band based on (5/2+). | |
| 1894.59 | E(level): Energy may be too high by ≈2.5 keV, see comment for 2468 level. If the deexciting transition feeds the g.s., E(level) should be decreased by 28.6 keV. | ||
| 2278.5 | E(level): Band based on (5/2+). | ||
| 2298.48 | E(level): According to 1981Ho17, the g.s. transition feeds the g.s. or the 28.6 level, but another connecting transition supports this level energy. | ||
| 2468.2 | E(level): Mismatch in energy sums/differences for transitions (1487.25γ, 1697.0γ, 1915.23γ) connected with this level produces a large uncertainty. Either the 1915.23γ or the 1487.25γ may be too high in energy by ≈2.5 keV, the former is true if 1697.0γ is correctly placed from 4165.9 level. | ||
| 3215.0 | E(level): Band based on (5/2+). | ||
| 4185.66 | E(level): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV. | ||
| 4232.47 | E(level): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV. | ||
| 4319.1 | E(level): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV. | ||
| 4375.3 | E(level): Band based on (5/2+). | ||
| 4403.0 | E(level): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV. | ||
| 4510.5 | E(level): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV. | ||
| 4516.00 | E(level): According to 1981Ho17, the g.s. transition feeds the g.s. or the 28.6 level, but another connecting transition supports this level energy. | ||
| 4530.3 | E(level): Energy may be too high by ≈2.5 keV, see comment for 2468 level. If the deexciting transition feeds the g.s., E(level) should be decreased by 28.6 keV. | ||
| 4610.7 | E(level): Mismatch in energy sums/differences for transitions (1487.25γ, 1697.0γ, 1915.23γ) connected with this level produces a large uncertainty. Either the 1915.23γ or the 1487.25γ may be too high in energy by ≈2.5 keV, the former is true if 1697.0γ is correctly placed from 4165.9 level. | ||
| 4673.1 | E(level): Mismatch in energy sums/differences for transitions (1487.25γ, 1697.0γ, 1915.23γ) connected with this level produces a large uncertainty. Either the 1915.23γ or the 1487.25γ may be too high in energy by ≈2.5 keV, the former is true if 1697.0γ is correctly placed from 4165.9 level. | ||
| 4707.3 | E(level): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV. |
| E(level) | E(gamma) | Comments |
| 991.36 | 991.35 | E(γ): from 90Br β-n. Eγ=991.5 3 in 89Br β- |
| 1894.59 | 1865.98 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 2298.48 | 2298.47 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 2468.2 | 1487.25 | E(γ): Energy may be too high by ≈2.5 keV, see comment for 2468 level. If the deexciting transition feeds the g.s., E(level) should be decreased by 28.6 keV |
| 4165.88 | 1697.00 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity |
| 4185.66 | 4185.6 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4232.47 | 4232.5 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4319.1 | 4319.0 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4381.70 | 1915.23 | E(γ): Energy may be too high by ≈2.5 keV, see comment for 2468 level. If the deexciting transition feeds the g.s., E(level) should be decreased by 28.6 keV |
| 4403.0 | 4402.9 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4510.5 | 4510.4 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4516.00 | 4516.9 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4530.3 | 4501.6 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4610.7 | 4610.5 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4673.1 | 1697.00 | E(γ): Multiply placed with undivided intensity I(γ): Multiply placed with undivided intensity | 4672.9 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
| 4707.3 | 4678.6 | E(γ): Transition feeds the g.s. or the 28.6 level. If the deexciting transition feeds the 28.6 level, E(level) should be increased by 28.6 keV |
Identification and production of 89Kr isotope by 1940Ha10 and 1943Ha09 in neutron bombardment of uranium. Later studies of decay of 89Kr: 1950Di01, 1951Ko10, 1965Pa14, 1969Ca03, 1970Fi04, 1972Eh02, 1972Po13, 1973He01, and several others.
Hyperfine structure, rms charge radii, isotope shifts: 1995Ke04
Mass measurement: 2006De36 (ISOLTRAP, Penning-trap method at ISOLDE- CERN facility)
Theoretical calculations: consult NSR database at www.nndc.bnl.gov/nsr/ or additional document records in this dataset for five primary references, three for structure and two for half-life and β-n decay mode of 89Kr.
Q-value: S(2n)=11968.9 22, S(2p)=24688 3 (2021Wa16)