149DY 149DY IT DECAY (0.490 S) 1980DA18,1976ST08,1980JA1622NDS 202210
149DY H TYP=FUL$AUT=Balraj Singh and Jun Chen$CIT=NDS 185, 2 (2022)$
149DY2 H CUT=23-Aug-2022$
149DY c 1980Da18 (also 1983JuZY): {+152}Gd(|a,7n|g) E=106 MeV, this measurement
149DY2c updates and extends that by 1976St08 at the same laboratory; measured
149DY3c E|g, I|g, |g|g-coin, |g(|q), |g|g(|q), |g(t), |g|g(t).
149DY4c {+136}Ce({+16}O,3n|g) E=92 MeV {+16}O beam from the Emperor Tandem at
149DY5c the MPI Heidelberg on >99% enriched {+136}Xe target (in oxide form);
149DY6c measured conversion electrons with a solenoid spectrometer. Deduced
149DY7c levels, J|p, isomer T{-1/2}, configurations, conversion coefficients,
149DY8c |g-ray multipolarities, transition strengths. Systematics of
149DY9c neighboring isotones. See also the {+152}Gd(|a,7n|g) dataset for
149DYAc additional data.
149DY c 1976St08 (also 1976St01): {+152}Gd(|a,7n|g) E=106 MeV |a beam was
149DY2c produced from the Julich cyclotron. Target was 1.2 mg enriched (>99.6%)
149DY3c {+152}Gd on a 500 |mg/cm{+2} mylar backing. |g rays were detected with
149DY4c two Ge(Li) detectors. Measured E|g, I|g, |g|g-coin, |g(|q), |g|g(|q),
149DY5c |g(t), |g|g(t). Deduced levels, J|p, isomer T{-1/2}, |g-ray
149DY6c multipolarities. 1976St08 extends the measurement of 1976St01 and
149DY7c determines T{-1/2}, spin and parity of the isomer.
149DY c 1980Ja16: {+144}Sm({+12}C,X|g) E=70-130 MeV {+12}C beam from the
149DY2c Grenoble variable-energy cyclotron. Measured E|g, |g|g-coin, |g(t) with
149DY3c a Ge(Li) and a NaI detector. Deduced isomer T{-1/2}.
149DY c Others:
149DY c 2003Li42: {+149}Dy isomer nuclei produced in fragmentation of {+209}Bi
149DY2c beam at 900 MeV/nucleon; separated in flight with the fragment
149DY3c separator (FRS) and stored in the cooler ring (ESR) at GSI.
149DY4c Measured half-life of fully-ionized isomeric state at 2661 keV
149DY c See 1988Ba02 (also 1987BaZV) and 1993KlZZ for |e decay
149DY2c of this isomer
149DY cG E$From 1980Da18. The same data are also presented in {+152}Gd(|a,7n|g)
149DY2cG dataset.
149DY cG M$From ce data, |g(|q) and |g|g(|q) in 1980Da18 and |g(|q) in 1976St01.
149DY2cG The same multipolarities are adopted in the Adopted Gammas. The same
149DY3cG |g(|q) and |g|g(|q) are also presented in {+152}Gd(|a,7n|g) dataset
149DY cG RI$Deduced by evaluators from assumed I(|g+ce)=100 and theoretical |a
149DY2cG from BrIcc
149DY cG E$From a least-squares fit to |g-ray energies.
149DY cL J,T$From the Adopted Levels
149DY P 2661.2 5 (27/2)- 0.490 S 15
149DY cP E$2660.94 {I34} in the Adopted Levels
149DY cP J,T$From the Adopted Levels.
149DY N 1.0 1.0 0.993 3
149DY cN BR$from %|e+%|b{++}=0.7 {I3} (1988Ba02).
149DY PN 3
149DY L 0.0 7/2- 4.2 M 2
149DY L 1073.2 1 (13/2)+
149DY G 1073.2 1 99.446 8 E3 0.00557 8 100
149DY2 G %IG=98.75 30
149DY cG RI$relative intensity=100 (1980Da18)
149DY cG M$from |a(K)exp
149DY2 G A2=+0.01 3 $ A4=+0.02 4 (1976St01) $ EKC=0.0046 5 (1980Da18)
149DYS G K/T=0.00453 6$L/T=0.000784 11$M/T=0.0001754 25
149DYS G N/T=4.04E-5 6$O/T=5.73E-6 8$P/T=2.77E-7 4
149DYS G KC=0.00456 6$LC=0.000788 11$MC=0.0001763 25
149DYS G NC=4.06E-5 6$OC=5.76E-6 8$PC=2.78E-7 4
149DY L 2251.81 15 (17/2)+
149DY G 1178.6 1 99.782 3 E2 2.18E-3 3 100
149DY2 G %IG=99.08 30
149DY cG RI$relative intensity=91 {I9} (1980Da18)
149DY cG M$from |a(K)exp and |g|g(|q)
149DY2 G A2=+0.01 3 $ A4=-0.03 4 (1976St01) $ EKC=0.0017 3 (1980Da18)
149DYS G K/T=0.001836 26$L/T=0.000265 4$M/T=5.80E-5 8
149DYS G N/T=1.337E-5 19$O/T=1.937E-6 27$P/T=1.061E-7 15
149DY cG $IPC/T=3.35E-6 5
149DYS G KC=0.001840 26$LC=0.000265 4$MC=5.81E-5 8
149DYS G NC=1.340E-5 19$OC=1.941E-6 27$PC=1.063E-7 15$IPC=3.36E-6 5
149DY cG $(298.6|g)(1178.6|g)(|q): A{-2}=+0.05 {I7} (1976St01)
149DY L 2550.4 2 (21/2)+
149DY G 298.6 1 93.86 8 E2 0.0654 9 100
149DY2 G %IG=93.20 29
149DY cG RI$relative intensity=83 {I8} (1980Da18)
149DY cG M$|a(K)exp and |g(|q)
149DY2 G A2=0.00 2 $ A4=-0.04 3 (1976St01) $ EKC=0.049 7 (1980Da18)
149DYS G K/T=0.0460 6$L/T=0.01198 17$M/T=0.00276 4
149DYS G N/T=0.000627 9$O/T=8.24E-5 12$P/T=2.393E-6 34
149DYS G KC=0.0490 7$LC=0.01276 18$MC=0.00294 4
149DYS G NC=0.000668 9$OC=8.78E-5 12$PC=2.55E-6 4
149DY L 2661.2 5 (27/2)- 0.490 S 15 M
149DY cL T$adopted value from weighted average of 0.500 s {I30} (1976St08),
149DY2cL 0.510 s {I10} (1980Ja16), 0.47 s {I1} (1987BaZV). Other:
149DY3cL for fully-ionized atom, T{-1/2}=11 s 1 (2003Li42)
149DY cL $Configuration=|ph{-11/2}{+2}~#|nf{-7/2} (1976St08,1980Da18)
149DY G 110.8 4 3.52 8 E3 27.3 7 100
149DY2 G %IG=3.50 7
149DYS G K/T=0.1086 30$L/T=0.651 12$M/T=0.164 5
149DYS G N/T=0.0370 12$O/T=0.00435 15$P/T=6.74E-6 20
149DYS G KC=3.07 5$LC=18.4 5$MC=4.63 12
149DYS G NC=1.044 26$OC=0.1229 31$PC=0.0001904 35
149DY cG RI$for fully-ionized atom, I|g|?100 per 100
149DY2cG decays of the isomer with T{-1/2}=11 s {I1} (2003Li42); since
149DY3cG internal conversion is not allowed for bare atoms
149DY cG RI$relative intensity|?3
149DY cG M$|a(L)exp=13 {I5} (1980Da18), 16 {I4} (1987BaZV)