194HG 194TL EC DECAY (32.8 M) 1972AM03,2019OL05 21NDS 202109
194HG H TYP=FUL$AUT=Jun Chen and Balraj Singh$CIT=NDS 177, 1 (2021)$
194HG2 H CUT=3-Sep-2021$
194HG c 1972Am03: {+194}Tl ions were obtained from spallation of lead by
194HG2c bombarding a PbF{-2} target with 660 MeV proton beam from the
194HG3c synchrocyclotron of the Nuclear Problems Laboratory of JINR. |g rays
194HG4c were detected with Ge(Li) detectors and conversion electrons were
194HG5c detected with a |b spectrometer with a Si(Li) detector (FWHM=3.2 keV at
194HG6c |?200 keV). Measured E|g, I|g, E(ce), I(ce). Deduced levels, J, |p,
194HG7c |e-decay branching ratios, log| {Ift}, conversion coefficients, |g-ray
194HG8c multipolarities.
194HG c 2019Ol05: {+194}Tl ions were produced by a 500-MeV proton beam
194HG2c provided by the TRIUMF main cyclotron impinging on an uranium carbide
194HG3c target, and implanted into a mylar tape at the central focus of the
194HG4c GRIFFIN spectrometer. |g rays were detected with the GRIFFIN array
194HG5c consisting of 15 HPGe clover detectors and 7 cylindrical LaBr{-3}(Ce)
194HG6c crystals; conversion electrons were detected with a set of 5 in-vacuum
194HG7c LN{-2}-cooled lithium-drifted silicon detectors (PACES) and a fast
194HG8c 1-mm-thin plastic Zero Degree Scintillator (ZDS). Measured E|g, I|g,
194HG9c |g|g-coin, |g|g(t). Deduced levels, T{-1/2}, transition strengths.
194HGAc Comparisons with available data and theoretical calculations.
194HG c Others: 1968Pe13, 1970To14, 1967Na14, 1966Pe06, 1960Ju01, 1974St04,
194HG2c 1976WeZM
194HG c Due to a large gap (|?3 MeV) between Q-value=5246 {I14} and the highest
194HG2c observed level of 2464, the decay scheme is considered incomplete and
194HG3c the branching ratios and log| {Ift} values are considered as
194HG4c approximated values.
194HG cE TI$From |g+ce intensity balance at each level.
194HG cG $Unplaced |g rays are from 33-min (g.s.) or from 32.8-min isomer
194HG2cG (1972Am03)
194HG cG E,RI$From 1972Am03, unless otherwise noted. Quoted values of
194HG2cG intensities are relative to I|g(749|g)=100
194HG cG M,MR$From ce data (1972Am03,1968Pe13) given under comments where
194HG2cG available. The same values are adopted in Adopted Gammas. For selected
194HG3cG transitions, data are also available from 1968Pe13. Uncertainty of 30%
194HG4cG in ce data from 1972Am03 is assumed by evaluators when deducing |d
194HG5cG value
194HG cL $Negative result in the search for superdeformation at
194HG2cL low-spin states populated by {+194}Tl |e decay. Expected 3600|g in
194HG3cL coincidence with 428|g (from 428 level) was not observed
194HG4cL (1989HeYZ, 1990HeYY).
194HG cL $2138.4 and 2143.5 levels: level population suggested by evaluators
194HG2cL based on placements of 227.98|g and 233.10|g in (HI,xn|g). In 1972Am03,
194HG3cL 227.98|g is placed from a level at 1292.5 and 233.10|g is unplaced.
194HG4cL The 1292.5 level proposed in 1972Am03 on the basis of energy sums of
194HG5cL 219.0|g and 227.98|g is discarded by the evaluator. The 227.98|g is
194HG6cL placed with an 8- level at 2138 known from (HI,xn|g) and the 219.0|g
194HG7cL is considered unplaced due to the absence of any other supporting
194HG8cL argument
194HG cL E$From a least-squares fit to |g-ray energies
194HG cL J$From Adopted Levels
194TL P 260 14 (7+) 32.8 M 2 5246 14
194TL cP E,J,T$From Adopted Levels of {+194}Tl
194TL cP QP$From 2021Wa16
194HG N 0.77 4 1.0 1.0
194HG cN NR$From I(|g+ce)(749|g and 735|g)=100, assuming no |g feedings from
194HG2cN levels above 1813.5 and no |b feedings to g.s., 428.2 and 1064.5
194HG3cN levels. About 14% |g intensity is unplaced but it is unlikely that
194HG4cN any of it will affect the normalization factor significantly with the
194HG5cN above assumption.
194HG PN 3
194HG G 107.2 2 1.0 2
194HG2 G %IG=0.77 16
194HG G 219.0 5 1.3 3 M1+E2 1.2 5 0.52 15
194HGS G KC=0.37 15$LC=0.1155 23$MC=0.0285 7
194HGS G NC=0.00712 15$OC=0.00126 3$PC=5.1E-5 22
194HG2 G %IG=1.00 24
194HG cG M,MR$|a(K)exp=0.37
194HG cG $On the basis of energy sums, 1972Am03 propose a (3+) level
194HG2cG at 1292 with deexciting transitions of 219.0 and 227.98. However,
194HG3cG the evaluators consider this level unlikely due to the absence of
194HG4cG a transition to the 428, 2+ level. Moreover, the 227.98|g most probably
194HG5cG corresponds to the 227.6|g known to deexcite an 8- level at 2138 level
194HG6cG in (HI,xn|g). The multipolarity of the 227.98|g from ce data is
194HG7cG consistent with 228|g(|q) data in (HI,xn|g). The 8- level is expected
194HG8cG to be populated from the (7+) isomer of {+194}Tl
194HG G 239.0 7 1.2 3 M1(+E2) 1.1 LT 0.55 13
194HGS G KC=0.43 13$LC=0.089 4$MC=0.0212 5
194HGS G NC=0.00532 13$OC=0.00098 5$PC=6.1E-5 18
194HG2 G %IG=0.93 24
194HG cG M$|a(K)exp=0.46
194HG G 299.5 5 1.3 4
194HG2 G %IG=1.0 3
194HG G 319.80 10 5.1 10E2 0.0882
194HGS G KC=0.0541 8$LC=0.0257 4$MC=0.00651 10
194HGS G NC=0.001619 23$OC=0.000280 4$PC=7.00E-6 10
194HG2 G %IG=3.9 8
194HG cG M$|a(K)exp=0.041 gives |d(E2/M1)>10
194HG cG E$other: 322 {I2}, I|g=6.5 {I33} (Pb target) (1968Pe13)
194HG G 462.5 7 6.0 20M1+E2 1.2 5 0.065 21
194HGS G KC=0.052 19$LC=0.0105 22$MC=0.0025 5
194HGS G NC=0.00063 12$OC=0.000116 24$PC=7.E-6 3
194HG2 G %IG=4.6 16
194HG cG M$|a(K)exp=0.051
194HG G 510.9 3 11 2 ?
194HG2 G %IG=8.5 16
194HG cG $Probably annihilation radiation
194HG G 600.5 7 2.2 6
194HG2 G %IG=1.7 5
194HG G 675.7 1.0 ?
194HG2 G %IG=0.77
194HG G 682.7 0.7 ?
194HG2 G %IG=0.54
194HG G 691.0 0.9 ?
194HG2 G %IG=0.69
194HG G 694.8 1.3 ?
194HG2 G %IG=1.00
194HG G 702.2 1.6 ?
194HG2 G %IG=1.23
194HG G 711.0 1.7 ?
194HG2 G %IG=1.31
194HG G 719.8 1.8 ?
194HG2 G %IG=1.39
194HG G 1118.7 10
194HG cG E$from 1968Pe13 only
194HG G 1383.0 0.9 ?
194HG2 G %IG=0.69
194HG G 1424.4 0.8 ?
194HG2 G %IG=0.62
194HG G 1445.9 0.7 ?
194HG2 G %IG=0.54
194HG G 1530.7 1.3 ?
194HG2 G %IG=1.00
194HG cG E$2003Su30 assign a 1529.9 {I5} (I|g=2.0 {I3}) to 33.0 min, 2- activity
194HG G 1550.3 2.3 ?
194HG2 G %IG=1.77
194HG cG E$2003Su30 assign a 1551.6 {I5} (I|g=4.2 {I4}) to 33.0 min, 2- activity
194HG G 1640.0 0.9 ?
194HG2 G %IG=0.69
194HG G 1676 0.6 ?
194HG2 G %IG=0.46
194HG G 1691.4 1.3 ?
194HG2 G %IG=1.00
194HG G 1822 0.7 ?
194HG2 G %IG=0.54
194HG G 1832.0 0.6 ?
194HG2 G %IG=0.46
194HG cG $Proposed placement with a tentative 2260 level (1972Am03)
194HG2cG considered unlikely since possible direct |e feeding from (7+)
194HG3cG suggests J(2260)>4
194HG G 1936.0 0.9 ?
194HG2 G %IG=0.69
194HG L 0.0 0+
194HG L 428.2 3 2+ 19 PS 1
194HG cL T$from (636|g)(428|g)(t) with 735|g and 749|g also in gate (2019Ol05)
194HG G 428.20 25 130 6 E2 0.0397
194HGS G KC=0.0274 4$LC=0.00927 13$MC=0.00230 4
194HGS G NC=0.000574 9$OC=0.0001012 15$PC=3.62E-6 5
194HG2 G %IG=100 7
194HG cG E$other: 428.4 {I5} (1968Pe13)
194HG cG RI$total I|g=220 {I25} (1972Am03) distributed in two parts on the
194HG2cG basis of intensity balance at 428 level. The other component belongs
194HG3cG to {+194}Tl |e decay (33.0 min). Other total I|g: 232 {I35} (Pb
194HG4cG target), 610 {I91} (U target) (1968Pe13)
194HG cG M$(L1+L2)/L3=5.1 {I10}, K/L=3.0 {I6}, L/M=1.3 {I5} (1960Ju01)
194HG L 1064.5 4 4+ 3 PS LT
194HG cL T$from (735|g)(636|g)(t) with 428|g also in gate (2019Ol05)
194HG G 636.30 25 130 6 E2 0.01542
194HGS G KC=0.01173 17$LC=0.00280 4$MC=0.000678 10
194HGS G NC=0.0001693 24$OC=3.06E-5 5$PC=1.557E-6 22
194HG2 G %IG=100 7
194HG cG E$other: 636.8 {I5} (1968Pe13)
194HG cG RI$total I|g=150 {I20} (1972Am03) distributed in two parts on the
194HG2cG basis of intensity balance at 1064 level. The other component belongs
194HG3cG to {+194}Tl |e decay (33.0 min). Other total I|g: 151 {I23} (Pb
194HG4cG target), 189 {I29} (U target) (1968Pe13)
194HG cG M$|a(K)exp=0.013 (1972Am03), 0.014 {I4} (1968Pe13), 0.013 (1966Pe06),
194HG2cG |a(L)exp=0.0028, K/L=4.5 (1972Am03)
194HG L 1799.5 5 6+
194HG E 2.3 11 9 4 7.0 2 11 5
194HGS E EAV=1210.6 89$CK=0.640 3$CL=0.1127 6$CM+=0.03622 18
194HG G 735.0 3 29 6 E2 0.01129
194HGS G KC=0.00878 13$LC=0.00191 3$MC=0.000458 7
194HGS G NC=0.0001144 16$OC=2.09E-5 3$PC=1.162E-6 17
194HG2 G %IG=22 4
194HG cG E$other: 734.7 {I5} (1968Pe13)
194HG cG RI$others: 31 {I6} (Pb target), 29 {I6} (U target) (1968Pe13)
194HG cG M$|a(K)exp=0.008 (1972Am03), 0.011 {I3} (1968Pe13)
194HG L 1813.5 5 5- 51 PS 6
194HG cL T$from (650|g)(749|g)(t) with 428|g also in gate (2019Ol05).
194HG2cL Other: |<0.15 ns (1970To14, (ce)|g(t))
194HG E 1.1 LT 12 LT 8.5 GT 13 LT 1U?
194HGS E EAV=1183.3 85$CK=0.7392 15$CL=0.1353 4$CM+=0.04377 11
194HG G 749.0 3 100 E1 0.00395
194HGS G KC=0.00330 5$LC=0.000502 7$MC=0.0001154 17
194HGS G NC=2.88E-5 4$OC=5.40E-6 8$PC=3.95E-7 6
194HG2 G %IG=77 4
194HG cG E$other: 748.9 {I5} (1968Pe13)
194HG cG M$|a(K)exp=0.0033 (1972Am03), 0.0034 {I10} (1968Pe13), 0.0024
194HG2cG (1966Pe06)
194HG L 1910.4 5 7- 3.61 NS 15
194HG cL T$unweighted average of 3.46 ns {I3} (2019Ol05) and 3.75 ns {I11}
194HG2cL (1970To14). Value of 2019Ol05 is from (255|g)(735|g)(t) with 428|g also
194HG3cL in gate; (209|g)(749|g)(t) and (209|g)(111|g)(t) (2019Ol05).
194HG E 6.1 23 26 10 6.5 2 32 12
194HGS E EAV=1160.9 89$CK=0.657 3$CL=0.1157 6$CM+=0.03719 18
194HG G 96.90 8 10 2 E2 6.33
194HGS G KC=0.624 9$LC=4.27 7$MC=1.117 17
194HGS G NC=0.277 4$OC=0.0459 7$PC=0.0001280 19
194HG2 G %IG=7.7 16
194HG cG E$from 1968Pe13 using permanent-magnet spectrograph plates. The same
194HG2cG value is quoted by 1972Am03
194HG cG RI$other: 10.7 {I59} (Pb target), 9.1 {I46} (U target) (1968Pe13)
194HG cG M$|a(L)exp=4.0 {I4}, L/(M+N)=2.9 (1972Am03), |a(L)exp=4.2 {I8}
194HG2cG (1968Pe13), (L1+L2)/L3=1.24 {I5}, L/M=3.6 {I4}, M/(N+O)=2.7 {I3}
194HG3cG (1960Ju01)
194HG G 110.96 8 8.3 20[E1] 0.325
194HGS G KC=0.261 4$LC=0.0494 7$MC=0.01155 17
194HGS G NC=0.00285 4$OC=0.000507 8$PC=2.58E-5 4
194HG2 G %IG=6.4 16
194HG cG E$other: 110.8 {I10} (1968Pe13)
194HG cG RI$other: 7.6 {I38} (Pb target), 7.3 {I37} (U target) (1968Pe13)
194HG L 2138.4 5 8-
194HG E 1.3 2 7.5 11 6.9 1 8.8 13
194HGS E EAV=1059.3 89$CK=0.688 3$CL=0.1216 5$CM+=0.03910 17
194HG G 227.98 8 8.6 10E2+M1 2.1 +17-6 0.35 7
194HGS G KC=0.22 7$LC=0.0981 18$MC=0.0247 4
194HGS G NC=0.00616 9$OC=0.001069 22$PC=2.9E-5 9
194HG2 G %IG=6.6 8
194HG cG E,RI$other: 228.4 {I10}, with I|g=7.3 {I37} (1968Pe13). 1972AM03
194HG2cG place this |g from a 1292 level which is discarded by evaluators.
194HG3cG See comments for 219.0|g
194HG cG M,MR$|a(K)exp=0.31, K/L=1.8, K/(M+N)=8 (1972Am03)
194HG L 2143.5 5 9-
194HG E 0.13 2 2.4 4 9.1 1 2.5 4 1U
194HGS E EAV=1042.9 84$CK=0.7605 12$CL=0.1403 3$CM+=0.04544 10
194HG G 233.10 15 2.7 4 E2 0.234
194HGS G KC=0.1167 17$LC=0.0880 13$MC=0.0226 4
194HGS G NC=0.00562 8$OC=0.000956 14$PC=1.470E-5 21
194HG2 G %IG=2.1 3
194HG cG E$placement based on results in (HI,xn|g); unplaced in 1972Am03
194HG cG M$|d(E2/M1)>5 from |a(K)exp=0.11 (1972Am03)
194HG L 2165.8 5 6-
194HG E 0.4 LT 3 LT 7.4 GT 3 LT ?
194HGS E EAV=1047.1 89$CK=0.692 3$CL=0.1223 5$CM+=0.03933 16
194HG G 255.40 10 12 2 M1(+E2) 0.7 5 0.43 12
194HGS G KC=0.34 11$LC=0.072 5$MC=0.0172 8
194HGS G NC=0.00429 19$OC=0.00079 6$PC=4.8E-5 16
194HG2 G %IG=9.3 16
194HG cG E$other: 256.7 {I15} (1968Pe13)
194HG cG M,MR$|a(K)exp=0.37, K/L=5.7, K/(M+N)=13 (1972Am03)
194HG G 352.20 25 2.2 4 M1+E2 0.9 4 0.16 5
194HGS G KC=0.13 4$LC=0.026 4$MC=0.0061 8
194HGS G NC=0.00153 18$OC=0.00028 4$PC=1.7E-5 6
194HG2 G %IG=1.7 3
194HG cG M,MR$|a(K)exp=0.13 (1972Am03)
194HG L 2179.9 5 5-,6-
194HG E 0.14 9 0.9 5 7.9 3 1.0 6
194HGS E EAV=1040.8 88$CK=0.694 3$CL=0.1227 5$CM+=0.03944 16
194HG G 366.50 25 2.3 4 M1(+E2) 0.8 LT 0.18 3
194HGS G KC=0.15 3$LC=0.026 3$MC=0.0061 6
194HGS G NC=0.00153 14$OC=0.00029 3$PC=2.1E-5 4
194HG2 G %IG=1.8 3
194HG cG M,MR$|a(K)exp=0.18 (1972Am03)
194HG G 380.5 3 1.8 3 [E1] 0.01610
194HGS G KC=0.01331 19$LC=0.00215 3$MC=0.000497 7
194HGS G NC=0.0001236 18$OC=2.29E-5 4$PC=1.532E-6 22
194HG2 G %IG=1.39 24
194HG cG M$from |DJ|p; |a(K)exp gives |d(M2/E1)=0.88 {I23} for E1+M2, which is
194HG2cG highly unlikely
194HG L 2260.0 9 (4,5,6)- ?
194HG E 0.39 8 2.6 5 7.4 1 3.0 6 ?
194HGS E EAV=1005.2 88$CK=0.7040 25$CL=0.1246 5$CM+=0.04007 16
194HG G 446.5 7 3.7 7 M1+E2 1.1 +15-7 0.08 4
194HGS G KC=0.06 4$LC=0.012 4$MC=0.0029 8
194HGS G NC=0.00072 20$OC=0.00013 4$PC=8.E-6 5
194HG2 G %IG=2.9 6
194HG cG M,MR$|a(K)exp=0.093, K/L=3.5 (1972Am03)
194HG L 2264.7 5 (5,6)-
194HG E 0.49 11 10.3 24 8.4 1 10.8 25 1U
194HGS E EAV=991.5 84$CK=0.7669 10$CL=0.1420 3$CM+=0.04600 9
194HG G 98.9 1 0.8 3 [M1] 8.15
194HGS G KC=6.67 10$LC=1.137 17$MC=0.265 4
194HGS G NC=0.0664 10$OC=0.01256 18$PC=0.000960 14
194HG2 G %IG=0.62 23
194HG G 451.0 7 6.5 15M1+E2 1.7 +27-8 0.06 3
194HGS G KC=0.044 22$LC=0.010 3$MC=0.0024 6
194HGS G NC=0.00060 14$OC=0.00011 3$PC=6.E-6 4
194HG2 G %IG=5.0 12
194HG cG M,MR$|a(K)exp=0.063, K/L=3.3 (1972Am03)
194HG L 2374.7 5 6-,7-
194HG E 1.2 3 9.7 21 6.8 1 10.9 24
194HGS E EAV=954.3 88$CK=0.7179 24$CL=0.1273 5$CM+=0.04094 15
194HG G 208.90 18 8.0 20E2(+M1) 2.1 GT 0.40 6
194HGS G KC=0.21 6$LC=0.1380 21$MC=0.0353 7
194HGS G NC=0.00877 16$OC=0.001499 22$PC=2.8E-5 9
194HG2 G %IG=6.2 16
194HG cG E$other: 209.7 {I10} (1968Pe13)
194HG cG RI$other: 7.1 {I36} (Pb target), 6.7 {I39} (U target) (1968Pe13)
194HG cG M$|a(K)exp=0.2, K/L=1.6, K/(M+N)=4.7 (1972Am03)
194HG G 464.5 7 3.0 10E2(+M1) 2 GT 0.040 8
194HGS G KC=0.030 7$LC=0.0079 8$MC=0.00193 18
194HGS G NC=0.00048 5$OC=8.7E-5 9$PC=4.0E-6 10
194HG2 G %IG=2.3 8
194HG cG M,MR$|a(K)exp=0.11, K/L=2.6 (1972Am03)
194HG L 2463.9 5 6-
194HG E 1.80 24 16.0 21 6.5 1 17.8 23
194HGS E EAV=914.8 88$CK=0.7281 23$CL=0.1292 5$CM+=0.04158 14
194HG G 284.00 20 2.4 4 M1(+E2) 0.7 LT 0.37 5
194HGS G KC=0.30 5$LC=0.055 3$MC=0.0129 6
194HGS G NC=0.00322 14$OC=0.00060 4$PC=4.2E-5 7
194HG2 G %IG=1.9 3
194HG cG M,MR$|a(K)exp=0.38 (1972Am03)
194HG G 298.1 2 2.7 3 E2(+M1) 2 GT 0.13 3
194HGS G KC=0.088 24$LC=0.0352 18$MC=0.0088 4
194HGS G NC=0.00220 9$OC=0.000384 20$PC=1.2E-5 4
194HG2 G %IG=2.1 3
194HG cG E,RI$other: 298.8 {I10} with I|g=2.2 {I22} (Pb target) (1968Pe13)
194HG cG M,MR$|a(K)exp=0.089 (1972Am03)
194HG G 553.2 3 6.0 15M1(+E2) 0.8 LT 0.061 10
194HGS G KC=0.050 9$LC=0.0085 11$MC=0.00197 24
194HGS G NC=0.00049 6$OC=9.3E-5 12$PC=6.9E-6 12
194HG2 G %IG=4.6 12
194HG cG E$other: 553.4 {I10} (1968Pe13)
194HG cG M$|a(K)exp=0.063 (1972Am03)
194HG G 650.3 3 9 2 M1+E2 1.3 5 0.026 8
194HGS G KC=0.021 7$LC=0.0040 9$MC=0.00094 20
194HGS G NC=0.00023 5$OC=4.4E-5 10$PC=2.9E-6 9
194HG2 G %IG=6.9 16
194HG cG M,MR$|a(K)exp=0.021 (1972Am03)
194HG G 664.2 7 1.5 4
194HG2 G %IG=1.2 3