194AU 194AU IT DECAY (600 MS) 1977PA20,1975YA14 21NDS 202109
194AU H TYP=FUL$AUT=Jun Chen and Balraj Singh$CIT=NDS 177, 1 (2021)$
194AU2 H CUT=3-Sep-2021$
194AU c 1977Pa20: isomers were produced via {+195}Pt(p,2n|g) with 12-20 MeV
194AU2c protons from the internal slow-pulsing system of the 90-cm MC-20
194AU3c cyclotron at University of Jyvaskyla on a target 11 mg/cm{+2} 97.3%
194AU4c enriched {+195}Pt. |g rays were detected with Ge(Li) and HPGe
194AU5c detectors; conversion electrons were detected with a cooled silicon
194AU6c surface-barrier detector. Measured E|g, I|g, |g|g-coin, |g(t), |g(|q),
194AU7c E(ce), I(ce). Deduced levels, J, |p, conversion coefficients,
194AU8c multipolarities. 1977Pa20 also report I|g data from {+194}Pt(p,n|g).
194AU c 1975Ya14: isomers were produced via {+194}Pt(d,2n|g) with 11, 13, 15
194AU2c MeV deuterons and {+194}Pt(p,n|g) with 11 MeV protons from the ANL
194AU3c accelerator. Natural and enriched Pt targets. |g rays were detected
194AU4c with Ge detectors. Measured E|g, I|g, |g|g-coin, |g(t). Deduced levels,
194AU5c T{-1/2} of isomers.
194AU c 1982Ne05: isomers were produced via {+193}Ir(|a,3n|g) with |a beam from
194AU2c the Julich isochronous cyclotron JULIC on enriched {+193}Ir target.
194AU3c Measured E|g, I|g, |g(t) with a Ge(Li) detector and measured conversion
194AU4c electrons with an iron-free on-line electron spectrometer of the orange
194AU5c type in the off-beam slow pulsing mode. Deduced isomer T{-1/2}, J, |p,
194AU6c |g-ray multipolarities.
194AU c Others: 1980RoZN
194AU cG $1980RoZN report |g rays at 10.9, 56.3 and 80.9, not seen by
194AU2cG 1977Pa20, 1975Ya14 or 1982Ne05. These have been omitted
194AU cG M,MR$From ce data, normalized to ce(L) data for 128.6|g from {+194}Au
194AU2cG IT decay (420 ms). The 128.6|g treated as E2 with |a(L)=1.08
194AU cL E$From a least-squares fit to |g-ray energies
194AU cL J$From Adopted Levels
194AU P 107.4 5 (5+) 600 MS 8
194AU N 0.0556 56 1.0
194AU PN 3
194AU cN NR$From I(|g+ce)(45.29|g)=100
194AU L 0.0 1-
194AU L 35.22 7 (2)-
194AU G 35.22 7 42 4 M1+E2 0.14 4 41 9
194AUS G LC=31 7$MC=7.5 16
194AUS G NC=1.9 4$OC=0.32 7$PC=0.0151 3
194AU2 G %IG=2.3 3
194AU cG E$weighted average of 35.19 {I7} (1977Pa20) and 35.27 {I8} (1975Ya14)
194AU cG RI$from 1977Pa20. Other: 80 {I23} from 1975Ya14
194AU cG M,MR$from |a(L)exp=32 {I5} (1977Pa20).
194AU L 80.51 10 (3)-
194AU G 45.29 7 100 M1+E2 0.144 30 17.0 18
194AUS G LC=13.0 13$MC=3.1 4
194AUS G NC=0.77 9$OC=0.137 14$PC=0.00715 12
194AU2 G %IG=5.6 6
194AU cG E$weighted average of 45.32 {I7} (1977Pa20) and 45.25 {I9} (1975Ya14)
194AU cG M,MR$from |a(L)exp=13.4 {I12} (1977Pa20).
194AU L 107.4 5 (5+) 600 MS 8 M1
194AU cL T$from |g(t) (1975Ya14). Other: 600 ms {I50} (1982Ne05)
194AU G 26.9 5 0.24 3 (M2) 7.5E3 7
194AUS G LC=5.5E3 6$MC=1.50E3 14
194AUS G NC=3.8E2 4$OC=67 7$PC=3.3 3
194AU2 G %IG=0.0133 21
194AU cG E$from ce data in 1977Pa20
194AU cG RI$from ce(L)(26.9|g)/ce(L)(45.3|g)=1.03 {I13} (1977Pa20) and
194AU2cG mult=M2. Others: 0.24 {I5} from I(|g+ce) balance at 80 level, <0.5 from
194AU3cG |g-ray measurements (1977Pa20)
194AU cG M$|a(L)exp>2400 (1977Pa20) rules out mult=D,E2. The intensity
194AU2cG balance at 80.5 level restricts multipolarity to M2, E3, M3 or M4.
194AU3cG The upper limits on B(EL)(W.u.) rule out M4. The M3 is less likely
194AU4cG since B(M3)(W.u.)=9.1 is very close to RUL=10 for M3. The M2 assignment
194AU5cG is chosen simply because of preference of 5+ for 107-keV isomer
194AU6cG rather than 6+. A similar 5+ isomer reported in {+192}Au (1977Pa20)