173YB 173LU EC DECAY 1992AD08 95NDS 199509 173YB H TYP=FUL$AUT=V. S. SHIRLEY$CIT=NDS 75,377 (1995)$CUT=1-Oct-1993$ 173YB C The decay scheme and all data are from 1992Ad08, except where 173YB2C noted. Sources from spallation of tantalum by 660-MEV 173YB3C protons, chemical, mass separations; measured EG, IG 173YB4C (high-purity germanium detector, FWHM=500 EV at 122 KEV; 173YB5C anti-COMPTON spect), ECE, ICE (SILI detector, FWHM=1.5 173YB6C KEV at 150 KEV), differential-integral coin (GELI-NAI). 173YB7C Reference citations are given with data from other sources. 173YB8C Others: 1957Bo61, 1957Go78, 1958Dz96, 1958Go85, 1959Bi11, 1959Di44, 173YB9C 1960Ro14, 1960Wi06, 1961Be34, 1961Va36, 1963Ba28, 1966Ja16, 1979Dz02, 173YBAC 1984Se08. 173YB CL See 173YB adopted levels for magnetic moments 173YB2CL from G-FACTORS measured in 173LU EC decay (1983Ca28). 173YB CL T$Adopted values. 173YB CE GS feeding is from X-RAY intensity data (1992Ad08); 173YB2CE excited-state feedings, from intensity imbalance at each 173YB3CE level. 173YB CG M$From EKC (1970BaYI,1976KaYW) except where noted. The photon and 173YB2CG intensity scales were normalized through KC=0.0214 (E1 173YB3CG theory) for 272.1G. 173YB CL E(A)$5/2[512] band member. 173YB CL E(B)$7/2[633] band member. 173YB CG MR(A)$EKC (1992Ad08). 173YB CG MR(B)$Nuclear orientation (1992KrZU); CE data give erratic 173YB2CG results. 173YB TG $XK data (1992Ad08); intensities relative to RI(272.1G)=100.0. 173YB2TG E(x ray) I(x ray) from decay scheme 173YB3TG YB XKA2 51.354 231.0 5 207 6 173YB4TG YB XKA1 52.389 365.0 8 364 10 173YB5TG YB XKB1P 59.4 105.3 26 151 5 (XKB1P + XKB2P) 173YB6TG YB XKB2P 61.0 27.6 10 173YB7TG 173LU P 0.0 7/2+ 1.37 Y 1 670.8 17 173YB N 0.212 7 1.0 1.0 173YB PN 3 173YB CN NR$from total TI to GS=98.9% 11 (EC feeding to GS LE 2.2%). 173YB G 208.78 0.003 LE 173YB G 319.4 0.0025 LE 173YB G 442.08 0.002 LE 173YB G 543.24 0.003 LE 173YB G 621.80 0.0008 LE 173YB L 0.0 5/2- STABLE A 173YB E 2.2 LE 10.0GE 173YBS E CK= 0.811 5$CL= 0.1448 7$CM+= 0.04443 23 173YB CE TI$estimated from X-RAY intensity data (1992Ad08). 173YB L 78.647 12 7/2- 46 PS 5 A 173YB CL T$values from 173LU EC decay: 38 PS 5 (GCE(T) (1961Be37)), 173YB2CL 52 PS 6 (microwave pulsed beam (1971Da17)). 173YB E 50 3 8.56 3 173YBS E CK= 0.807 5$CL= 0.1475 9$CM+= 0.0454 3 173YB G 78.63 3 56.0 8 M1+E2 -0.224 14 7.01 173YBS G KC= 5.59 $LC= 1.09 $MC= 0.250 $NC+= 0.0718 173YB CG MR$magnitude from weighted average of 0.232 14 (L1:L2:L3, 173YB2CG 1959Ha09), 0.256 10 (GG(THETA), 1965Ho05), 0.220 9 (L1:L2:L3, 173YB3CG 1976KaYV), and 0.187 11 (GG(THETA), CEG(THETA), 1982Bu16); sign 173YB4CG from nuclear orientation (1975Kr11,1983Kr18). Other values 173YB5CG range from -0.14 to -0.26. 173YB L 179.364 9 9/2- 32 PS 4 A 173YB E 20.9 7 8.76 2 173YBS E CK= 0.801 6$CL= 0.1523 11$CM+= 0.0472 3 173YB G 100.724 20 24.7 4 M1+E2 -0.205 10 3.38 173YBS G KC= 2.76 $LC= 0.481 $MC= 0.109 $NC+= 0.0316 173YB CG MR$magnitude from weighted average of 0.21 2 (K:L1:L2:L3, 173YB2CG 1970BaYI), 0.19 2 (L1:L2:L3, 1969Ka34), 0.22 2 (nuclear 173YB3CG orientation, 1983Kr18), and 0.201 19 (GG(THETA), CEG(THETA), 173YB4CG 1982Bu16); sign from nuclear orientation (1975Kr11,1983Kr18). 173YB5CG Other values range from -0.12 to -0.3. 173YB G 179.365 11 6.49 12 E2 0.392 173YBS G KC= 0.227 $LC= 0.126 $MC= 0.0305 $NC+= 0.00828 173YB L 301.859 14 11/2- 16.7 PS 15 A 173YB G 122.55 3 0.079 3 M1+E2 -0.22 6 1.92 173YBS G KC= 1.58 $LC= 0.266 $MC= 0.060 $NC+= 0.0169 173YB CG M,MR$from COULOMB excitation. Other value for MR: -0.17 11 173YB2CG (nuclear orientation (1975Kr11)). 173YB G 223.163 20 0.060 12 E2 0.189 @ 173YBS G KC= 0.122 $LC= 0.0514 $MC= 0.0123 $NC+= 0.00349 173YB CG M$from COULOMB excitation. 173YB L 350.764 10 7/2+ 0.45 NS 2 B 173YB CL T$values from 173LU EC decay: 0.47 NS 3 (XG(T) (1961Be34)), 173YB2CL 0.42 NS 7 (XG(T) (1961Va36)), 0.43 NS 3 (XG(T) (1966Ja16)). 173YB E 22.1 4 8.30 1 173YBS E CK= 0.777 10$CL= 0.1694 19$CM+= 0.0534 6 173YB G 171.393 13 13.7 5 E1+M2 -0.026 AP 0.086 4 173YBS G KC= 0.072 3$LC= 0.0112 6$MC= 0.00250 13$NC+= 0.00067 5 173YB CG MR$magnitude from average of AP 0.039 (L1:L2, 1976KaYW), 173YB2CG AP 0.021 (EKC, 1970BaYI), AP 0.031 (K:L1:L2:L3, 1970BaYI), and 173YB3CG AP 0.015 (GG(THETA), CEG(THETA), 1982Bu16); sign from 173YB4CG GG(THETA), CEG(THETA) (1982Bu16). Other measurements indicate 173YB5CG pure E1. 173YB G 272.105 15 100.0 15 E1 0.0254 173YBS G KC= 0.0214 $LC= 0.00317 $MC= 0.000703 $NC+= 0.000220 173YB CG M$pure E1 deduced from CE subshell ratios of 1959Ha09, 1969Ka34, 173YB2CG and 1976KaYW. M2/E1 LT 0.001 (from particle parameter, 1965Ho05). 173YB G 350.774 18 1.42 5 E1+M2 0.090 45 0.017 4 A 173YBS G KC= 0.014 3$LC= 0.0021 5$MC= 0.00048 11$NC+= 0.00015 4 173YB L 412.967 11 9/2+ B 173YB E 3.04 14 8.94 3 173YBS E CK= 0.759 13$CL= 0.183 3$CM+= 0.0584 8 173YB G 62.17 3 0.79 4 M1+E2 0.29 4 13.5 173YBS G KC= 9.81 $LC= 2.87 $MC= 0.67 $NC+= 0.187 173YB CG M,MR$from ELC=2.7 4 (X-RAY and G intensity data, 1983Va20) and 173YB2CG L1:L2:L3=0.83 23:0.34 15:0.41 9 (1970BaYI). MR=0.26 +6-7 from 173YB3CG ELC and MR=0.30 5 from L1:L2:L3. MR=0.17 14 (1992Ad08). 173YB G 111.109 12 0.252 10 [E1] 0.261 173YBS G KC= 0.216 $LC= 0.0350 $MC= 0.00777 $NC+= 0.00215 173YB G 233.605 12 2.61 5 E1+M2 0.08 AP 0.047 12 173YBS G KC= 0.039 9$LC= 0.0063 16$MC= 0.0014 4$NC+= 0.00042 13 173YB CG MR$average of 0.06 +4-6 (EKC, 1970BaYI) and 0.10 3 (K:L, 173YB2CG 1976KaYW). 173YB G 334.321 11 0.514 20 E1(+M2) 0.084 LT 0.017 7 A 173YBS G KC= 0.014 6$LC= 0.0021 10$MC= 0.00047 22$NC+= 0.00015 8 173YB G 412.9 0.0008 LT [M2] 0.236 173YBS G KC= 0.191 $LC= 0.0348 $MC= 0.00795 $NC+= 0.00240 173YB L 636.128 11 7/2- 8.0 PS 26 173YB CL T$see 173YB adopted levels regarding half-life, as measured in 173YB2CL 173LU EC decay. 173YB E 2.93 6 6.38 7 173YBS E CL= 0.65 9$CM+= 0.35 4 173YB G 223.163 20 0.66 3 E1 0.0420 @ 173YBS G KC= 0.0352 $LC= 0.00529 $MC= 0.00118 $NC+= 0.000343 173YB G 285.362 6 2.88 8 E1(+M2) 0.026 LT 0.0229 12 A 173YBS G KC= 0.0192 10$LC= 0.00285 17$MC= 0.00063 4$NC+= 0.000201 14 173YB CG MR$other values: 0.07 +3-4 (EKC (1970BaYI)), 0.034 25 173YB2CG (GG(THETA), CEG(THETA) (1982Bu16)). 173YB G 334.263 15 0.026 LT ? 173YB G 456.79 3 0.663 22 M1+E2 +0.65 +13-9 0.0440 17 B 173YBS G KC= 0.0365 15$LC= 0.00580 23$MC= 0.00130 5$NC+= 0.000395 11 173YB CG MR$other value: 0.89 15 (EKC (1992Ad08)). 173YB G 557.497 25 2.45 9 M1+E2 +1.81 6 0.0180 B 173YBS G KC= 0.0146 $LC= 0.00257 173YB CG MR$other value: 2.2 8 (EKC (1992Ad08)). 173YB G 636.11 3 6.85 22 M1+E2 -0.54 5 0.0199 B 173YBS G KC= 0.0166$LC= 0.00250 173YB CG MR$other value: 0.83 13 (EKC (1992Ad08)).