189PB 189PB IT DECAY (22.2 US) 2005BA51,2009DR03 201704 201704
189PB H TYP=FUL$AUT=T.D. JOHNSON, BALRAJ SINGH$CIT=NDS 142, 1 (2017)$
189PB2 H CUT=15-Apr-2017$
189PB c 2005Ba51: {+158}Gd({+36}Ar,5n|g): E=178 MeV. Target=0.43 mg/cm{+2}
189PB2c 92.9% enriched {+158}Gd. Measured E|g, I|g, |g|g,
189PB2c particle-|g coin with 10 Compton-suppressed Ge detectors and
189PB3c parallel-grid avalanche counter (PGAC). Fragment mass analyzer (FMA)
189PB4c used to accept evaporation residues recoiling from target according to
189PB5c their mass/charge ratio. Reaction products detected by PGAC via energy
189PB6c loss (|DE) and focal-plane-position signals.
189PB7c {+164}Er({+29}Si,4n|g): E=140 MeV. Target=2.5 mg/cm{+2} 73.6% enriched
189PB8c {+164}Er. Measured E|g, I|g, |g|g, |g|g(t),
189PB8c lifetimes with six Compton-suppressed Ge detectors and two planar low
189PB9c energy photon spectrometer (LEPS) detectors of the CAESAR array.
189PB c 2009Dr03: {+164}Er beam produced at E=145 MeV by 14UD Pelletron
189PB2c accelerator at Australian National University. Target=700 |mg/cm{+2}.
189PB3c A spectrometer, consisting of the fusion product separator SOLITAIRE,
189PB5c an annular array of six cooled Si(Li) electron detectors, a single
189PB6c large-volume Ge detector and a single LEPS detector, were used to
189PB7c measure both |g rays and conversion electrons. CAESAR array of Ge
189PB8c detectors was used in complementary experiments
189PB cG E$From 2005Ba51. Values from 2009Dr03 are in agreement, but given to
189PB2cG only the nearest keV
189PB cG RI$Values are from 2005Ba51 in out-of-beam measurements, and scaled
189PB2cG down by a factor of five by the evaluators so as to renormalize to
189PB3cG 100 for the intensity of the 818 |g-ray. Intensities per 100 decays
189PB4cG of the isomer, deduced using GABS code, are listed as %I|g in
189PB5cG continuation records. Intensities from in-beam measurements are
189PB6cG given in a separate dataset.
189PB cG M(Z)$Measured |a(exp) implies E0 admixture
189PB cG $The |a(exp) values have been determined from intensity balance
189PB2cG considerations.
189PB cG CC$Theoretical values from BrIcc code with "Frozen Orbitals"
189PB2cG approximation. For mult=[M1+E2], given value overlaps those for
189PB3cG pure M1 and pure E2
189PB cL E$From least-squares fit to E|g data, keeping the energy of the
189PB2cL 40-keV level as fixed, its uncertainty of 4 keV is not carried over
189PB3cL in the energies of the higher levels
189PB cL J$Assignments are as given in 2005Ba51 and 2009Dr03, based on
189PB2cL multipolarities from conversion data, systematics of neighboring
189PB3cL isotopes and isotones, and transition strengths
189PB cL T(Y)$Estimated from |g|g(t)
189PB CL BAND(A)$ BAND BASED ON (17/2+),|a=+1/2.
189PB2cL 2005Ba51 compared this band with 9/2[624] band in {+187}Pb
189PB CL BAND(a)$ BAND BASED ON (15/2+),|a=-1/2.
189PB2cL 2005Ba51 compared this band with 9/2[624] band in {+187}Pb.
189PB CL BAND(B)$|ni{-13/2}{+-3} band
189PB P 2475.53 18 (31/2-) 22.2 US +69-14
189PB N 0.73 3 1
189PB cN NR$From summed I(|g+ce) of |g rays to 40-keV level=100, deduced
189PB2cN using GABS normalization code.
189PB PN 3
189PB L 40 4 (13/2+)
189PB DL E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT
189PB cL E$from Adopted Levels, based on |a-decay data in 2013Sa43
189PB L 677.60 23 (13/2+)
189PB G 637.4 3 8 3 E0+M1+E2 0.49 19 Z
189PB2 G %IG=5.9 21
189PB2 G EKC=0.41 16 (2009DR03)
189PB CG ECC$EKC multiplied by a factor of 1.2 to include higher shells.
189PB2CG Other: ECC=0.40 35 (2005Ba51)
189PB L 858.80 10 (17/2+) B
189PB G 818.8 1 100 E2 0.00991
189PB2 G %IG=73 3
189PB2 G EKC=0.008 2 (2009DR03)
189PBS G KC=0.00773 11$LC=0.001660 24$MC=0.000399 6$
189PBS G NC=0.0001012 15$OC=1.96E-5 3$PC=1.81E-6 3
189PB L 950.56 17 (15/2+) a
189PB G 910.6 3 12 2 [M1+E2] 0.015 8
189PB2 G %IG=8.8 14
189PB L 1181.59 15 (17/2+) 6.9 NS LT A
189PBF L FLAG=Y
189PB cL $In-out transition intensity imbalance of -13 {I10} at this level
189PB G 230.9 2 6.2 24 [M1+E2] 0.6 3
189PB2 G %IG=4.6 17
189PB G 323.5 3 3.6 12 E0+M1+E2 1.5 5 Z
189PB2 G %IG=2.6 9
189PB2 G ECC=1.5 5 (2005BA51)
189PB G 503.8 3 10.0 22 [E2] 0.0288
189PB2 G %IG=7.3 16
189PB G 1142.1 6 11 2 [E2] 0.00516
189PB2 G %IG=8.1 14
189PB L 1327.25 13 (21/2+) 2.1 NS LT B
189PBF L FLAG=Y
189PB G 468.4 1 79 4 E2 0.0344
189PB2 G %IG=58 20
189PB2 G EKC=0.023 3 (2009DR03)
189PBS G KC=0.0239 4$LC=0.00797 12$MC=0.00199 3$
189PBS G NC=0.000504 7$OC=9.49E-5 14$PC=7.20E-6 10
189PB L 1340.11 17 (19/2+) a
189PB G 389.7 2 7 2 [E2] 0.0552
189PB2 G %IG=5.1 14
189PB G 481.2 2 8 3 [M1+E2] 0.08 5
189PB2 G %IG=5.9 21
189PB L 1607.45 15 (21/2+) 2.8 NS LT A
189PBF L FLAG=Y
189PB G 267.4 3 14 3 [M1+E2] 0.37 21
189PB2 G %IG=10.3 20
189PB G 279.7 2 5 1 [M1+E2] 0.33 19
189PB2 G %IG=3.7 8
189PB G 425.9 1 55 11 [E2] 0.0438
189PB2 G %IG=40 4
189PBS G KC=0.0293 5$LC=0.01086 16$MC=0.00273 4$
189PBS G NC=0.000691 10$OC=0.0001294 19$PC=9.40E-6 14
189PB L 1813.0 4 (23/2+) a
189PB G 473.0 5 4 2 [E2] 0.0336
189PB2 G %IG=2.9 15
189PB L 1865.43 16 (25/2+) B
189PB G 538.2 1 32 3 E2 0.0247
189PB2 G %IG=23.5 19
189PB2 G EKC=0.018 3 (2009DR03)
189PBS G KC=0.01780 25$LC=0.00519 8$MC=0.001284 18$
189PBS G NC=0.000325 5$OC=6.17E-5 9$PC=4.96E-6 7
189PB L 2137.83 16 (25/2+) 2.1 NS LT A
189PBF L FLAG=Y
189PB cL $In-out transition intensity imbalance of 26 {I15} at this level
189PB G 272.4 2 11 2 E0+M1+E2 1.50 20 Z
189PB2 G %IG=8.1 12
189PB2 G ECC=1.50 20 (2005BA51)
189PB G 325.0 5 4 2 [M1+E2] 0.22 13
189PB2 G %IG=2.9 15
189PB G 530.3 1 66 14 E2 0.0255
189PB2 G %IG=48 22
189PB2 G EKC=0.021 4 (2009DR03)
189PBS G KC=0.0184 3$LC=0.00543 8$MC=0.001343 19$
189PBS G NC=0.000340 5$OC=6.45E-5 9$PC=5.16E-6 8
189PB G 810.8 2 40.0 24 E2 0.01012
189PB2 G %IG=29.4 17
189PB2 G EKC=0.012 3 (2009DR03)
189PBS G KC=0.00788 11$LC=0.001701 24$MC=0.000409 6$
189PBS G NC=0.0001037 15$OC=2.01E-5 3$PC=1.85E-6 3
189PB L 2280.36 23 (27/2+)
189PB G 142.4 2 7 1 [M1+E2] 2.5 10
189PB2 G %IG=5.1 7
189PB L 2474.53 18 (31/2-) 22.2 US +69-14 M
189PB cL E$ this isomer is interpreted as bandhead of a shears structure with
189PB2cL neutrons (in i{13/2} orbital) coupled to protons at |?60|'
189PB cL T$deduced from fitting of single exponential decay functions to the
189PB2cL decay curves of both the 468 and 819 transitions (2005Ba51)
189PB G 193.9 3 4 1 M2 7.04
189PB2 G %IG=2.9 6
189PB2 G EKC=5.3 11 $ ELC<2.6 9 $ EMC<1.2$ K/L>2.0 8
189PB CG $EKC, ELC, EMC from 2009Dr03
189PBS G KC=5.08 8$LC=1.477 23$MC=0.371 6$NC+=0.1158 18
189PBS G NC=0.0953 15$OC=0.0187 3$PC=0.00180 3
189PB cG $L-conversion line contaminated by K lines of 267|g and 272|g, and
189PB2CG M conversion line contaminated by K line of 279|g
189PB G 336.7 1 58 6 E3 0.395
189PB2 G %IG=43 9
189PB2 G EKC=0.113 16 $ELC=0.181 26 $EMC<0.086 $ K/L=0.62 12
189PB CG $EKC, ELC, EMC from 2009Dr03. Other: ECC=0.30 30 (2005Ba51)
189PBS G KC=0.1324 19$LC=0.195 3$MC=0.0521 8$
189PBS G NC=0.01325 19$OC=0.00242 4$PC=0.0001439 21
189PB DG $ ECC=0.30 30 (2005Ba51)
189PB G 609.3 3 11 2 (E3) 0.0542
189PB2 G %IG=8.1 14
189PB2 G EKC=0.020 6 (2009DR03)
189PBS G KC=0.0331 5$LC=0.01582 23$MC=0.00406 6$
189PBS G NC=0.001031 15$OC=0.000194 3$PC=1.478E-5 21