90SR 90RB B- DECAY (258 S) 1981TA05 20NDS 202005
90SR H TYP=FUL$AUT=S. K. Basu, E.A. MCCUTCHAN$CIT=NDS 165, 1 (2020)$
90SR2 H CUT=1-Mar-2020$
90SR c 1981Ta05: From {+235}U(n,F). Mass separation of {+90}Kr. NaI and
90SR2c Ge(Li). Measured E|g, I|g, |g|g coin, |g|g(|q). The 158-s and 258-s
90SR3c {+90}Rb activities were distinguished by varying collection and
90SR4c observation times.
90SR c 1977Hu03: From {+235}U(n,F). Mass separation. Measured T{-1/2}, E|g,
90SR2c I|g, |g|g coin, E|b.
90SR c 1997Gr09: from {+252}Cf. On-line mass separation and measurement of
90SR2c |g rays using a total absorption |g-ray spectrometer to determine
90SR3c |b{+-} distributions of decay intensities of fission products.
90SR4c Detector consisted of a large NaI scintillator with a deep axial well
90SR5c for the radioactive source and for a Si(Li) detector to measure |b|g
90SR6c coincidences.
90SR c Others: 1964Jo02, 1967Zh01, 1972Eh02, 1973Si12, 1973Cl02, 1974Gr29,
90SR2c 1976Wo05, 1978St02, 1978Wu04, 1978Wo15, 1980De02.
90SR c All data are from 1981Ta05, except as noted.
90SR cB $|b{+-} branches are from I(|g+ce) balance at each level. Values
90SR2cB measured with a total absorption |g-ray spectrometer (1997Gr09) are
90SR3cB also shown with individual levels. 1997Gr09 found an excess of |b{+-}
90SR4cB population to levels above 4394 keV, and a deficit for levels below
90SR5cB 1994 keV, compared to those values deduced from transition-intensity
90SR6cB balances. The most dramatic example is the |b{+-} population to the
90SR7cB 831-keV level: 15%, from transition-intensity balance; 1.8% from the
90SR8cB total absorption |g-ray spectrometer measurement (1997Gr09). 1997Gr09
90SR9cB proposed a fictitious level at about 3900 keV with a |b{+-}
90SRacB population of 1.64% in order to interpret their data.
90SR cL J,T(X)$From the Adopted Levels.
90SR cL T$From |b|g(t) (1991Ma05), except where noted,
90SR cG E$From 1981Ta05, except where noted.
90SR cG $For unplaced transitions possibly belonging to 258 s decay, see
90SR2cG {+90}Rb |b{+-} decay (158 s).
90SR cG M,MR$From the Adopted Gammas. In cases where adopted values derive
90SR2cG from this dataset, supporting details are given in the comments.
90SR D CC$FROM BrIcc v2.3b (16-Dec-2014) 2008Ki07, "Frozen Orbitals" appr.
90RB P 106.90 3 3- 258 S 4 6584 7
90SR N 0.0966 40 0.975 5 1.0267
90SR cN NR$deduced by evaluators assuming no |b{+-} feeding to g.s. (3- to
90SR2cN 0+), and using |SI(|g+ce)(to g.s. of {+90}Sr) + |SI(|g+ce)( to g.s.
90SR3cN of {+90}Rb)=100%.
90SR PN 3
90SR L 0 0+ 28.91 Y 3 X
90SR L 831.67 4 2+ 7 PS 2
90SR G 831.69 5 1000 38 E2 9.02E-4 C
90SRS G KC=0.000798 12$LC=8.77E-5 13$MC=1.471E-5 21$NC=1.84E-6 3$
90SRS G OC=1.178E-7 17
90SR B 15 4 7.67 12
90SRS B EAV=2641.1 32
90SR cB IB$1.76% (1997Gr09)
90SR L 1655.89 7 4+ 12 PS 2
90SR G 824.23 10 92 5 E2 9.22E-4 C
90SRS G KC=0.000816 12$LC=8.97E-5 13$MC=1.506E-5 21$NC=1.88E-6 3$
90SRS G OC=1.204E-7 17
90SR B 3.5 6 8.01 8
90SRS B EAV=2243.6 32
90SR cB IB$1.99% (1997Gr09)
90SR L 1892.34 5 2+ 2 PS 1
90SR G 1060.70 4 81 3 M1+E2 +0.50 3 4.97E-4 C
90SRS G KC=0.000440 7$LC=4.75E-5 7$MC=7.97E-6 12$NC=1.002E-6 14$OC=6.59E-8 10
90SR cG M,MR$(1060|g)(831|g)(|q): A{-2}=-0.105 {I16}, A{-4}=0.083 {I18}
90SR2cG (1981Ta05)
90SR G 1892.28 8 4.9 5 [E2] 4.11E-4 C
90SRS G KC=0.0001370 20$LC=1.464E-5 21$MC=2.45E-6 4$NC=3.09E-7 5$OC=2.03E-8 3
90SR B 4.2 4 7.84 5
90SRS B EAV=2129.7 32
90SR cB IB$1.82% (1997Gr09)
90SR L 2207.01 5 (3-) 1 PS LE
90SR G 314.5 3 8.8 4 [E1] 0.00374 C
90SRS G KC=0.00331 5$LC=0.000359 6$MC=6.02E-5 9$NC=7.51E-6 11$OC=4.78E-7 7
90SR G 551.20 25 9.1 7 [E1] 8.91E-4 C
90SRS G KC=0.000790 11$LC=8.52E-5 12$MC=1.427E-5 20$NC=1.79E-6 3$
90SRS G OC=1.157E-7 17
90SR G 1375.36 3 177 7 (E1(+M2)) -0.02 6 2.98E-4 C
90SRS G KC=0.000124 3$LC=1.32E-5 4$MC=2.22E-6 6$NC=2.79E-7 7$OC=1.83E-8 5
90SR cG M,MR$(1375|g)(831|g)(|q): A{-2}=-0.089 {I13}, A{-4}=0.051 {I15}
90SR2cG (1981Ta05), |d is for J=3 for 2207 level.
90SR cG MR$other: +0.464 {I21} for J=2 (1981Ta05)
90SR B 3.1 11 7.84 16
90SRS B EAV=1978.3 32
90SR cB IB$2.81% (1997Gr09)
90SR L 2497.30 6 (2+) 3 PS LE
90SR G 1665.61 7 51.0 12 C
90SR G 2497.27 15 8.1 8 C
90SR cG $(1665|g)(831|g)(|q): A{-2}=0.23 {I3}, A{-4}=0.02 {I3} (1981Ta05)
90SR cG MR$+0.53 {I18-11} for J=3 or +0.03 {I4} for J=2 (1981Ta05)
90SR B 1.49 21 8.03 7
90SRS B EAV=1838.8 32
90SR cB IB$1.21% (1997Gr09)
90SR L 2527.90 8 3-,4+ 6 PS LE
90SR G 872.00 15 5.6 4 C
90SR G 1696.16 7 17.5 6 C
90SR B 1.74 11 7.95 3
90SRS B EAV=1824.1 32
90SR cB IB$1.41% (1997Gr09)
90SR L 2570.59 9 10 PS 7
90SR G 1738.93 8 20.0 8 C
90SR cG $(1738|g)(831|g)(|q): A{-2}=-0.17 {I7}, A{-4}=0.11 {I8} (1981Ta05)
90SR cG MR$-0.12 {I12} for J(2570)=3 or +0.64 {I18} for J(2570)=2 or -0.06
90SR2cG {I8} for J(2570)=1 (1981Ta05)
90SR B 1.32 11 8.05 4
90SRS B EAV=1803.6 32
90SR cB IB$1.17% (1997Gr09)
90SR L 2927.68 8 4
90SR G 720.70 9 5.7 4 C
90SR G 1271.77 7 16.4 22 C
90SR B 0.87 24 8.06 12
90SRS B EAV=1632.4 32
90SR cB IB$1.03% (1997Gr09)
90SR L 2971.00 18 0+
90SR G 2139.33 18 1.4 6 (E2) 4.99E-4 C
90SRS G KC=0.0001094 16$LC=1.167E-5 17$MC=1.96E-6 3$NC=2.46E-7 4$
90SRS G OC=1.625E-8 23
90SR L 3032.85 8 1 PS LE
90SR G 1140.50 6 9.4 5 C
90SR B 0.60 18 8.16 13
90SRS B EAV=1582.1 32
90SR cB IB$0.70% (1997Gr09)
90SR L 3039.25 8 1
90SR G 1146.96 25 0.16 5 C
90SR G 2207.47 11 1.71 12 C
90SR G 3039.17 12 2.76 21 C
90SR L 3144.9 4 (5-)
90SR G 1489.0 4 3.7 5 C
90SR B 0.29 6 8.42 9
90SRS B EAV=1528.5 32
90SR cB IB$0.35% (1997Gr09)
90SR L 3383.36 10
90SR G 886.3 3 0.062 12
90SR cG RI$From I|g/I|g(3383|g) in 158-s decay.
90SR G 1176.9 9 0.039 16
90SR cG RI$From I|g/I|g(3383|g) in 158-s decay.
90SR G 3383.24 12 6.52 14 C
90SR L 3449.81 6 3 4 PS LE
90SR G 522.10 13 4.2 3 [E1] 1.01E-3 C
90SRS G KC=0.000899 13$LC=9.70E-5 14$MC=1.626E-5 23$NC=2.04E-6 3$
90SRS G OC=1.315E-7 19
90SR cG E$author's value of 552.10 {I13} in Table I is a misprint.
90SR G 921.20 24 3.2 7 C
90SR G 952.44 7 17.9 6 C
90SR G 1242.84 4 32.2 18 D C
90SR cG M$(1243|g)(831|g)(|q): A{-2}=0.01 {I4}, A{-4}=-0.02 {I5} (1981Ta05)
90SR G 1793.89 11 8.9 5 D C
90SR cG M$(1793|g)(831|g)(|q): A{-2}=-0.02 {I15}, A{-4}=0.02 {I17} (1981Ta05)
90SR G 2617.8 3 6.5 9
90SR B 6.54 23 6.897 18
90SRS B EAV=1383.1 32
90SR cB IB$7.29% (1997Gr09)
90SR L 3555.87 18
90SR G 985.4 5 0.85 25
90SR G 2724.26 21 4.6 6 C
90SR L 3584.41 8
90SR G 1013.95 19 2.7 3
90SR G 1086.7 8 0.74 15 C
90SR G 1377.2 5 24 8 C
90SR G 1692.07 25 2.9 5 C
90SR G 2752.68 8 122 4 C
90SR B 14.3 8 6.48 3
90SRS B EAV=1319.1 32
90SR cB IB$15.18% (1997Gr09)
90SR L 3627.0 3
90SR G 3627.4 7 10 4
90SR L 3954.3 2
90SR G 1027.1 4 1.3 3
90SR G 1456.7 3 2.5 7
90SR G 1747.3 3 2.5 4
90SR G 2298.1 9 3.6 20
90SR B 0.47 21 7.73 20
90SRS B EAV=1144.0 32
90SR cB IB$0.83% (1997Gr09)
90SR L 4036.86 13
90SR G 1109.2 8 1.4 8
90SR G 1829.82 20 3.7 5
90SR G 2381.5 5 1.8 7
90SR G 3205.09 16 11.9 9 C
90SR B 1.77 14 7.09 4
90SRS B EAV=1105.0 31
90SR cB IB$2.08% (1997Gr09)
90SR L 4135.62 10 (1,2+)
90SR G 752.1 3 0.0123 17
90SR cG RI$From I|g/I|g(4136|g) in 158-s decay.
90SR G 3303.91 13 0.15 1 C
90SR G 4135.51 17 1.17 4
90SR L 4148.80 10
90SR G 765.1 7 0.9 3
90SR G 1003.9 9 0.6 3
90SR G 1941.81 17 6.5 6 C
90SR G 2256.55 17 7.0 5 C
90SR G 3317.00 12 152 4 C
90SR B 15.7 4 6.067 14
90SRS B EAV=1052.4 31
90SR cB IB$18.87% (1997Gr09)
90SR L 4335.35 8
90SR G 779.9 4 2.9 6
90SR G 1764.5 9 1.0 5
90SR G 1838.15 14 8.7 6 C
90SR G 2128.30 7 55.2 15 C
90SR G 2442.9 5 2.8 7
90SR G 3503.52 15 25.1 11 C
90SR B 9.00 21 6.169 14
90SRS B EAV=965.0 31
90SR cB IB$8.78% (1997Gr09)
90SR L 4366.05 11
90SR G 739.2 4 0.0071 12
90SR cG RI$From I|g/I|g(4366|g) in 158-s decay.
90SR G 1326.46 21 0.0186 23
90SR cG RI$From I|g/I|g(4366|g) in 158-s decay.
90SR G 1438.3 8 0.0045 17
90SR cG RI$From I|g/I|g(4366|g) in 158-s decay.
90SR G 2473.94 20 0.09 1 C
90SR G 4365.90 18 1.13 8
90SR L 4404.60 18
90SR G 1021.9 7 0.8 3
90SR G 3572.82 18 16.3 10
90SR B 1.61 10 6.86 3
90SRS B EAV=932.7 31
90SR cB IB$1.99% (1997Gr09)
90SR L 4430.9 3
90SR G 1391.6 3 4.6 8
90SR G 1460.1 6 2.0 5
90SR G 1903.1 6 1.4 6
90SR G 2537.8 9 1.8 7
90SR B 0.92 12 7.08 6
90SRS B EAV=920.5 31
90SR cB IB$1.14% (1997Gr09)
90SR L 4685.5 3
90SR G 1302.2 3 2.0 5 C
90SR G 4685.0 14 0.4 3
90SR B 0.23 6 7.47 12
90SRS B EAV=802.5 31
90SR cB IB$0.27% (1997Gr09)
90SR L 4804.0 5
90SR G 2911.7 11 1.3 7
90SR G 3972.2 5 3.8 7
90SR B 0.48 9 7.04 9
90SRS B EAV=748.1 31
90SR cB IB$1.12% (1997Gr09)
90SR L 4805.10 23
90SR G 1877.40 21 4.7 5 C
90SR B 0.44 5 7.08 5
90SRS B EAV=747.6 31
90SR cB IB$1.03% (1997Gr09)
90SR L 4808.50 24
90SR G 442.3 4 1.2 3
90SR G 1425.2 3 2.9 3
90SR G 2311.2 6 3.1 10
90SR B 0.68 10 6.89 7
90SRS B EAV=746.0 31
90SR cB IB$1.59% (1997Gr09)
90SR L 4854.3 4 ?
90SR G 1298.5 5 2.1 4 ?
90SR G 3197.9 10 1.5 6 ?
90SR B 0.34 7 7.15 9
90SRS B EAV=725.0 31
90SR cB IB$0.82% (1997Gr09)
90SR L 4947.4 4 (2+) ?
90SR G 2741.0 12 1.5 8 ?
90SR G 4115.6 4 3.7 6 ?
90SR B 0.49 9 6.90 8
90SRS B EAV=682.6 30
90SR L 5024.52 24
90SR G 4192.75 23 12.1 11 C
90SR B 1.14 10 6.45 4
90SRS B EAV=647.7 30
90SR cB IB$2.22% (1997Gr09)
90SR L 5026.8 3 ?
90SR G 1576.9 7 1.2 4 ?
90SR G 3370.8 4 4.2 6 ?
90SR B 0.51 7 6.80 6
90SRS B EAV=646.7 30
90SR cB IB$1.03% (1997Gr09)
90SR L 5041.42 12
90SR G 2543.9 3 3.5 4
90SR G 2834.43 13 19.6 12 C
90SR G 4209.5 3 9.6 9 C
90SR B 3.08 15 6.002 24
90SRS B EAV=640.0 30
90SR cB IB$6.02% (1997Gr09)
90SR L 5089.44 16
90SR G 2592.32 20 6.8 7
90SR G 4257.34 24 7.8 6 C
90SR B 1.37 9 6.30 3
90SRS B EAV=618.4 30
90SR cB IB$2.69% (1997Gr09)
90SR L 5239.2 5
90SR G 3032.1 5 4.6 7 C
90SR B 0.43 7 6.64 8
90SRS B EAV=551.4 30
90SR cB IB$0.79% (1997Gr09)
90SR L 5285.87 20
90SR G 1658.9 3 4.6 6
90SR G 4454.07 21 12.5 8 C
90SR B 1.61 9 6.01 3
90SRS B EAV=530.7 30
90SR cB IB$2.99% (1997Gr09)
90SR L 5426.65 14
90SR cL $I|b=0.57% (1997Gr09). From I(|g+ce) balance at this level, the |b
90SR2cL feeding is 0.003 % {I40}, consistent with zero feeding
90SR G 3534.24 13 0.77 3 C
90SR L 5431.1 3 ?
90SR G 3538.6 6 5.1 11 ?
90SR G 4599.4 3 4.9 4 ?
90SR B 0.94 11 6.06 6
90SRS B EAV=466.9 29
90SR cB IB$1.36% (1997Gr09)
90SR L 5557.8 3
90SR G 1603.52 20 4.9 5
90SR G 4726.1 7 1.2 3
90SR B 0.57 6 6.10 5
90SRS B EAV=412.2 29
90SR cB IB$0.68% (1997Gr09)
90SR L 5785.1 8 ?
90SR G 2335.2 10 2.2 9 ?
90SR G 3214.5 11 1.4 6 ?
90SR B 0.34 10 5.96 13
90SRS B EAV=316.5 28
90SR cB IB$0.23% (1997Gr09)
90SR L 5822.0 5
90SR G 395.8 8 0.8 4
90SR G 1686.2 6 1.3 4
90SR G 2789.1 22 3.0 19
90SR G 3929.4 14 1.4 8
90SR B 0.61 20 5.63 15
90SRS B EAV=301.3 28
90SR cB IB$0.40% (1997Gr09)
90SR L 5827.9 4
90SR G 2200.9 3 5.1 6
90SR G 2900.3 13 1.2 7
90SR G 3620.8 11 6.1 23
90SR G 4996.2 11 0.7 3
90SR B 1.23 23 5.32 9
90SRS B EAV=298.9 27
90SR cB IB$0.82% (1997Gr09)