181TA 181W EC DECAY 1979IN02 05NDS 200601
181TA H TYP=ERR$AUT=J. Tuli$DAT=18-Jan-2007$COM=Corrected IG(152G)$
181TA H TYP=FUL$AUT=S. -C. WU$CIT=NDS 106, 367 (2005)$CUT=31-Aug-2005$
181TA c 1979In02: Radioactivity {+181}W; Si(Li), Ge(Li) detectors;
181TA2c measured I(L X-ray), I|g. {+181}Ta deduced levels, ICC, mixing ratios
181TA c Other references: 1969GuZW, 1965Mu01, 1961Mu03. Also see {+181}Hf
181TAxc |b{+-} decay.
181TA cG E$From 1979In02
181TA cG RI$Weighted average of I|g values from 1979In02 and 1983Se17.
181TA tG $Intensities of L and K x rays (1983Se17).
181TA2tG x-ray I(%)
181TA3tG ------- ----------
181TA4tG Ll 0.418 {I20}
181TA5tG La+L(n) 9.45 {I25}
181TA6tG Lb 10.49 {I27}
181TA7tG Lg 1.91 {I6}
181TA8tG Ka2 19.0 {I5}
181TA9tG Ka1 33.1 {I6}
181TAAtG Kb1' 10.8 {I3}
181TABtG Kb2' 2.85 {I10}
181TACtG ------- ---------
181TADtG For other x-ray data, see 1955Bi66, 1961Jo15, 1961Mu03, 1966Ra03, and 1
181TA+tG 979In02.
181TA cL J$From adopted levels
181TA N 1.0 1.0 1.0
181TA cN NR$from measured I|g and K-electron capture probability.
181W P 0.0 9/2+ 121.2 D 2 188 5
181TA L 0.0 7/2+ STABLE
181TA E 26 4 7.0912 26 4
181TAS E CK= 0.69 8$CL= 0.233 18$CM+= 0.079 6
181TA L 6.24 2 9/2- 6.05 US 12
181TA cL T$from time spectrum of coincidence between X-ray and the 6.21 |g
181TA2cL (1981Mo15); other value: 6.8 {I4} |ms (1961Cl15,1961Ha15)
181TA E 180 6 74 4 6.59 7 74 4
181TAS E CK= 0.68 8$CL= 0.239 19$CM+= 0.081 6
181TA cE E$from 1983Se17, other: 187 {I10} 1966Ra03. Bremsstrahlung endpoint.
181TA G 6.24 2 1.03 3 E1 70.5 25
181TA cG CC$anomalous transition, |a from {+181}Hf |b{+-} decay.
181TA cG M$M1:M2:M3:M45=186 {I19}:333 {I33}:100:167 {I17}, N1:N2:N3:N45=22
181TA2cG {I11}:33 {I16}:100: 14 {I7}, from 1969Bl12.
181TA L 136.28 2 9/2+
181TA E 0.086 3 7.7818 0.086 3
181TAS E CL= 0.68 23$CM+= 0.32 9
181TA G 136.28 2 0.0311 10 M1+E2 +0.396 11 1.75 1
181TAS G KC= 1.388 20$LC= 0.282 6$MC= 0.0656 14$NC+= 0.0195 4
181TA cG M,MR$from adopted levels
181TA L 158.56 3 11/2-
181TA E 0.0185 10 7.8 4 0.0185 10
181TAS E CL= 0.6 4$CM+= 0.43 21
181TA G 152.32 2 0.083 3 M1+E2 0.5 2 1.23 8
181TAS G KC= 0.97 10$LC= 0.205 19$MC= 0.048 5$NC+= 0.0142 14
181TA cG MR$|a(K)exp=0.97 {I9} from I|g(136)/I|g(153)=0.38 {I1} and
181TA2cG ce(K)(153)/ce(K)(136)=1.83 {I2} assuming |a(K)(136)=1.39.