123CS 123CS IT DECAY 1981MA01 21NDS 202105
123CS H TYP=FUL$AUT=Jun Chen$CIT=NDS 174, 1 (2021)$CUT=15-Apr-2021$
123CS DG CC$FROM BrIcc v2.3a (10-Sep-2014) 2008Ki07, "Frozen Orbitals" appr.
123CS c 1981Ma01: {+123}Cs isotopes were produced via {+139}La(p,3p14n) with
123CS2c E=600 MeV proton provided by the CERN synchro-cyclotron and separated
123CS3c by the ISOLDE separator. Separated ions were implanted into a
123CS4c aluminum-coated mylar tape. |g rays were detected with Ge(Li)
123CS5c detectors and conversion electrons were detected with a Si(Li)
123CS6c detector. Measured E|g, I|g, |g|g-coin, |g(t), E(ce), I(ce),
123CS7c |g-ce-coin. Deduced levels, T{-1/2}, conversion coefficients,
123CS8c |g-ray multipolarities. Comparisons with theoretical calculations.
123CS c 1972Dr06: {+123}Cs isotopes were produced via {+115}In({+12}C,4n) and
123CS2c {+109}Ag({+18}O,4n) reactions with {+12}C and {+18}O beams provided
123CS3c by the U-300 heavy-ion cyclotron at the Joint Institute for Nuclear
123CS4c Research at Dubna. |g rays were detected with a Ge(Li) and a NaI(Tl)
123CS5c spectrometers and conversion electrons were detected with a magnetic
123CS6c |b-ray spectrometer. Measured E|g, I|g, E(ce), I(ce), excitation
123CS7c functions. Deduced levels, conversion coefficients, |g-ray
123CS8c multipolarities.
123CS cG $I(K x ray)=1300 {I200}, relative to I(94.6|g)=1000 (1981Ma01)
123CS cG E,RI$From 1981Ma01, unless otherwise noted.
123CS cG M$From Adopted Gammas. Supporting arguments or assignments (if
123CS2cG different) from ce data in this study are given under comments.
123CS cL E$From a least-squares fit to |g-ray energies.
123CS cL J,T$From Adopted Levels.
123CS N 0.0287 480.0287 481.0
123CS cN NR$From I(|g+ce)(61.7|g)=100
123CS PN 3
123CS P 156.30 23 11/2(-) 1.7 S 2
123CS L 0.0 1/2(+) 5.86 M 10
123CS L 30.6014(3/2+)
123CS G 30.6 6.4E2 9 S
123CS cG E$transition not observed, but expected from proposed decay scheme
123CS2cG (1981Ma01).
123CS cG TI$from intensity balance
123CS L 94.6010 5/2(+)
123CS G 64.0 1 150 20 M1 3.25 5 C
123CSS G KC=2.78 4$LC=0.373 5$MC=0.0764 11
123CSS G NC=0.01615 24$OC=0.002243 33$PC=0.0001096 16
123CS cG E$other: 63 (1972Dr06)
123CS cG RI$other: 345 {I+182-88} from I(95|g/62|g)=2.9 {I10} (1972Dr06) seems
123CS2cG discrepant
123CS cG M$D or M1+E2 (|d|<0.47) from |a(L)exp<1.5 and intensity balance
123CS2cG (1981Ma01)
123CS cG $I(ce(L))(64|g)/I(ce(K))(95|g)=1.6 {I5} (1972Dr06)
123CS G 94.6 1 1000 E2 2.274 33 C
123CSS G KC=1.433 21$LC=0.665 10$MC=0.1440 21
123CSS G NC=0.0292 4$OC=0.00342 5$PC=3.93E-5 6
123CS cG E$other: 95.5 (1972Dr06)
123CS cG M$E2 from |a(K)exp=1.4 {I5}, |a(L)exp=0.6 {I1}, |a(M)exp=0.16 {I6}
123CS2cG (1981Ma01), and K/L=2.5 {I10} (1972Dr06)
123CS cG $I(K x ray)/I(95|g)=2.5 {I6} (1972Dr06), 1.3 {I2} (1981Ma01)
123CS L 156.3023 11/2(-) 1.7 S 2 M
123CS cL T$adopted value from weighted average of 1.7 s {I2} (1981Ma01) and
123CS2cL 1.6 s {I2} (1972Dr06)
123CS G 61.7 2 12 2 E3 289 7 C
123CSS G KC=22.94 35$LC=207 5$MC=47.8 11
123CSS G NC=9.65 23$OC=1.066 25$PC=0.000570 9
123CS cG M$|a(K)exp=30 {I10}, |a(L)exp=260 {I60}, |a(M)exp=87 {I40} (1981Ma01).