232TH 232AC B- DECAY 1986GI08 06NDS 200610
232TH H TYP=FUL$AUT=E. BROWNE$CIT=NDS 107, 2579 (2006)$CUT=1-Nov-2004$
232TH C Natural tungsten bombarded with 2713-MeV 238U beam; A=232 selected
232TH2C by on-line mass separator; measured G rays with a Ge(Li) detector,
232TH3C |b- particles with a 4|p scin (1986Gi08);
232TH4C earlier results of 1973Ch24 (reporting T=35 s) were not
232TH5C confirmed.
232TH C The decay scheme is based mainly on 1986Gi08, except as noted. The
232TH2C levels at 1437, 1642, 1880, 1948, 1978, and 2008 are proposed by
232TH3C 1986Gi08 solely on the basis of EG differences of two deexciting
232TH4C G rays per level. The RI division for the 612.0 and 724.8 doublets is
232TH5C based on light-ion Coul. ex. results for the deexcitation of the
232TH6C 774-keV doublet
232TH7C (1986Gi08 ignored any feeding to the JPI=3- 774.4-keV level).
232TH CG $I(K| x ray)/I|g(665.0)=0.34 {I5} (1986Gi08).
232TH CG M$From Adopted Levels, Gammas
232TH CG RI(B)$Based on light-ion Coulomb excitation.
232TH CL J$For levels up to 1437 keV JPI are from Adopted Levels. JPI for
232TH2CL questionable levels GT 1437 keV are from G-ray deexcitation.
232TH CL E(X) Level not adopted
232AC P 0 (1+) 119 S 5 3700 SY
232TH N 0.153 0.153 1.0
232TH CN NR$From 1986Gi08 based on |b|g coin measurements.
232TH PN 3
232TH L 0 0+
232TH B 15 3 7.35 9
232THS B EAV= 1466
232TH CB IB$sum of IB to g.s. and to 49.3 level, based on TI intensity
232TH2CB balance. The LOGFT value is based
232TH3CB on the assumption that IB feeds just the g.s.
232TH L 49.4 2+
232TH B 7.4 GT ?
232TH G 49.369 9 E2 332 S
232THS G LC= 243.9 $MC= 66.4
232TH cG E$from {+236}U |a decay
232TH L 162.1 4+
232TH G 112.7 1 6 1 E2 6.84
232THS G KC= 0.2333 $LC= 4.79 $MC= 1.317 $NC+= 0.491
232TH L 714.3 1-
232TH B 18.2 9 6.92 3
232THS B EAV= 1166
232TH G 665.0 3 100 5 [E1] 0.00729
232THS G KC=0.00594 $LC=0.00102
232TH G 714.4 3 18 3 [E1] 0.00637
232THS G KC=0.00520 $LC=0.00088
232TH L 774.1 2+
232TH B 0.7 3 8.3019 ?
232THS B EAV= 1141
232TH G 612.0 3 1.5 9 [E2] 0.0273 B
232TH CG RI$calculated from I|g(612)/I|g(774)|=0.60 in light-ion Coul. ex.
232THS G KC=0.01869 $LC=0.00646
232TH G 724.7 2 E0+E2 0.8 APB S
232TH G 774.1 4 2.5 15 [E2] 0.01667
232THS G KC=0.01216 $LC=0.00339
232TH L 774.3 3-
232TH B 5.3 5 8.79 5 1U
232THS B EAV= 1097
232TH G 612.0 3 33 3 [E1] 0.00854 B S
232THS G KC=0.00695 $LC=0.00120
232TH CG RI$from light-ion Coul. ex. and RI(774.1 G) most of the 612.0-keV
232TH2CG RI intensity deexcites the 774.4-keV JP=3- state, and not the 774.1-
232TH3CG keV JPI=2+ state as suggested by 1986Gi08.
232TH G 724.8 2.9 AP [E1] 0.00620 B
232TH CG RI$from light-ion Coul. ex. From spectra of 1986Gi08 we estimate
232TH2CG RI <5
232THS G KC=0.00506 $LC=0.00086
232TH L 785.2 2+
232TH B 3.9 6 7.55 7
232THS B EAV= 1141
232TH G 735.8 4 16 3 E2+M1 23 10 0.019
232THS G KC=0.014$ LC=0.0037
232TH G 785.2 4 9 2 E2 0.01620
232THS G KC=0.01185 $LC=0.00327
232TH L 1072.9 2+
232TH B 2.0 10 7.6722 ?
232THS B EAV= 1016
232TH G 1023.5 5 13 6 [E2+M1] 0.02 1
232TH L 1077.5 (1-)
232TH B 2.1 5 7.6411
232THS B EAV= 1014
232TH G 1077.5 5 14 3 [E1] 0.00304
232THS G KC=0.00250 $LC=0.00041
232TH L 1078.7 (0+)
232TH B 1.2 8 7.9 3 ?
232THS B EAV= 1013
232TH G 1028.1 5 8 5 [E2] 0.00958
232THS G KC=0.00734 $LC=0.00169
232TH CG Placement based on (N,N'G). 1986Gi08 place it from
232TH2CG the 1077.5-keV level.
232TH L 1105.7 3-
232TH B 1.1 2 9.18 9 1U
232THS B EAV= 960.9
232TH G 1056.3 5 7 1 E1 0.00315
232THS G KC=0.00258 $LC=0.00043
232TH L 1122.8 (2+)
232TH B 5.2 9 7.22 8
232THS B EAV= 995.1
232TH G 960.6 5 6 4
232TH G 1072.9 5 28 4
232TH CG Placement from (N,N'G) and heavy-ion Coul. ex. 1986Gi08
232TH2CG place it from the 1072.9-keV level.
232TH L 1437 (1,2+) X ?
232TH B 4.9 9 7.04 9 ?
232THS B EAV= 864.7
232TH G 1388 1 22 4
232TH G 1437 1 10 4
232TH L 1641.8 (1,2+) X ?
232TH B 6 2 6.8015 ?
232THS B EAV= 780.4
232TH G 1593 1 16 5
232TH G 1642 1 23 10
232TH DG In a recent (N,N'G) study, a 1641.5-keV G ray
232TH2DG deexcites a 1692-keV level.
232TH L 1880 (1,2+) X ?
232TH B 6 1 6.61 8 ?
232THS B EAV= 683.2
232TH G 1830 1 30 5
232TH G 1880 1 9 3
232TH L 1948 (1,2+) X ?
232TH B 14 1 6.19 4 ?
232THS B EAV= 655.7
232TH G 1899 2 58 5
232TH G 1948 2 34 5
232TH L 1978 (2+) X ?
232TH B 6 1 6.53 8 ?
232THS B EAV= 643.6
232TH G 1815 1 13 4
232TH G 1978 2 25 5
232TH L 2008 (1,2+) X ?
232TH B 9 1 6.32 6 ?
232THS B EAV= 631.5
232TH G 1959 2 35 5
232TH G 2008 2 24 6