226TH 230U A DECAY 96NDS 199604 226TH H TYP=FUL$AUT=Y. A. AKOVALI$CIT=NDS 77,433 (1996)$CUT=1-Feb-1996$ 230U P 0.0 0+ 20.8 D 21 5992.7 7 226TH N 1.0 1.0 226TH PN 2 226TH C AG: (230G)(5663A) 1963Le17. 226TH C GG: see 1976Ku08. 226TH C AG(THETA):(A)(230G)(THETA), (A)(72G)(THETA) 1971He19,1954St02. 226TH C AG(T): (A)(CE 72G)(T) T(72 level)=0.395 NS 20 1960Be25. 226TH CA The hindrance factor for the S-WAVE ALPHA transition 226TH2CA (0+ to 0+) was calculated by 1986Da03. See also 1985Ch32 for 226TH3CA calculations of reduced ALPHA widths. 226TH3CA 226TH CL BAND(A) KPI=0+ GROUND-STATE BAND 226TH CL BAND(B) KPI=0- OCTUPOLE-VIBRATIONAL BAND 226TH CL J(D) JPI=0+ and 2+ were proposed for 805 and 847 levels, 226TH2CL respectively, by 1976Ku08 from analogy to K=0 states in neighboring 226TH3CL nuclei. 226TH CA E The ALPHA energies to the GS and to the 72.2 level are 226TH2CA given as recommended by 1991Ry01 from measured energies of 1966Ba14 226TH3CA and 1956As38. The EA's to all other excited states are from 1966Ba14. 226TH4CA The original energies have been increased by 1.5 KEV because of 226TH5CA changes in calibration energies, as recommended by 1991Ry01. 226TH6CA Other measurements: 1956As38, 1963Le17. 226TH CA IA ALPHA intensities per 100 230U A DECAYS. IA's are 226TH2CA measurements by 1956As38 and 1966Ba14, except where noted. 226TH CA HF Requirement of HF(5888.4A)=1.0 yields R0(226TH)=1.531 5. 226TH2CA The half life of 230U was measured to be 20.8 D, however, its 226TH3CA uncertainty was not given. The evaluator assumed arbitrarily a 10% 226TH4CA error, and DELTA T(230U) is taken as 2.1 D in calculating DELTA R0. 226TH CG E From 1976Ku08. Other measurements: 1956As38, 1956Sm88, 226THxCG 1970Lo02. 226TH CG RI From 1976Ku08. The original IG's have been renormalized 226TH2CG by the evaluator to IG(72.20G)=0.60% 4, as measured by 1969Pe17 226TH3CG the authors of 1976Ku08 had normalized their photon 226TH4CG intensities to IG of its daughter: RI(324G of 222RA decay)=2.77%. 226TH CG M Multipolarities in square brackets are from the level scheme. 226TH CA E(S) ALPHA was not observed. EA has been calculated from EA(0) 226TH2CA and the level energy. 226TH CA IA(S) Deduced from level scheme. 226TH L 0.0 0+ 30.57 M 10 A 226TH A 5888.4 7 67.4 4 1.0 226TH L 72.20 4 2+ 0.395 NS 20 A 226TH A 5817.5 7 32.0 2 0.9 226TH G 72.20 4 0.60 4 E2 53.5 226THS G LC=38.9 $ MC=10.67 $ NC+=3.94 226TH CG RI absolute intensity was determined to be 226TH2CG IG=0.60% 4 by 1969Pe17 (AG) and 226TH3CG IG=0.59% 9 by 1956As38 (renormalized by 1961Ru06). 226TH CG M CC(72G)=53 3 was deduced by 1969Pe17 from AG data. 226TH2CG See also 226AC B- decay 226TH L 226.43 5 4+ A 226TH A 5667.0 7 0.38 4 12 226TH G 154.23 3 0.125 7 (E2) 1.83 226THS G KC=0.239 $ LC=1.16 $ MC=0.316 $ NC+=0.117 226TH CG M intensity balance at the 226-KEV level suggests E2 for 154G. 226TH L 230.37 5 1- B 226TH A 5662.4 7 0.26 3 17 226TH G 158.18 3 0.070 5 E1 0.167 226THS G KC=0.131 $ LC=0.0273 $ MC=0.00656 $ NC+=0.00233 226TH CG M from 226AC B- decay 226TH G 230.37 5 0.122 6 E1 0.0683 226THS G KC=0.0543 $ LC=0.0106 $ MC=0.00255 $ NC+=0.00090 226TH CG M from 226AC B- decay 226TH L 307.5 2 3- B 226TH A 5586.0 7 0.0115 10 150 226TH G 81.0 5 0.00048 11 (E1) 0.208 226TH CG M intensity balance at the 307.5-KEV level suggests 226TH2CG E1 multipolarity for 81.0 and 235.3 G's. 226TH G 235.3 1 0.0117 8 (E1) 0.0651 226TH L 351 2 226TH A 5543 1 0.00054 5 1900 226TH L 362 3 226TH A 5533 2 0.0001 AP 8900 AP 226TH L 447.3 6 6+ A 226TH A 5448.7 100.00007 AP 4300 AP S S 226TH G 221.0 5 0.00005 1 [E2] 0.470 226TH L 450.5 2 5- B 226TH A 5445.8 9 0.00025 AP 1200 AP S S 226TH G 223.9 3 0.00024 6 [E1] 0.0729 226TH L 805.2 4 (0+) D 226TH A 5097.1 4 0.00030 AP 8 AP S S 226TH G 574.8 3 0.00030 4 [E1] 0.00964 226TH L 847.8 4 (2+) D 226TH A 5056 2 0.000069AP 19 AP S S 226TH G 539 1 0.00003515 [E1] 0.0109 226TH G 617 1 0.00004020 [E1] 0.0084