194PO    198RN A DECAY (65 MS)         1984CA32,1995BI17,1999TA0321NDS    202109
194PO  H TYP=FUL$AUT=Jun Chen and Balraj Singh$CIT=NDS 177, 1 (2021)$
194PO2 H CUT=3-Sep-2021$
194PO c  1984Ca32: {+198}Rn was produced by the spallation of thorium at the
194PO2c  ISOLDE mass separator with 600 MeV proton from the CERN
194PO3c  synchrocyclotron. Selected ions are implanted into a thin carbon foil
194PO4c  and |a particles were detected with a silicon surface-barrier detector
194PO5c  (FWHM=24 keV). Measured E|a, I|a, decay-time distribution. Deduced
194PO6c  levels, parent T{-1/2}.
194PO c  1995Bi17 (also 2000Va34): {+198}Rn was produced by the spallation
194PO2c  of thorium-carbide target with 1.0 GeV protons from ISOLDE at CERN.
194PO3c  |a particles were detected with PIPS detectors and conversion electrons
194PO4c  were detected with a BaF{-2} detector at the implantation station.
194PO5c  Measured E|a, I|a, |a(ce)-coin, decay-time distribution. Deduced
194PO6c  parent T{-1/2}.
194PO c  1999Ta03: {+198}Rn was produced in the {+166}Er({+36}Ar,4n) reaction
194PO2c  with 175 MeV {+36}Ar beam from the K130 cyclotron at the University of
194PO3c  Jyvaskyla, separated by the gas-filled recoil separation RITU and
194PO4c  implanted into a position-sensitive ion-implanted planar silicon
194PO5c  detector. Measured E|a, decay-time distribution. Deduced parent T{-1/2}
194PO c  2005Uu02, 2005Uu03: {+198}Rn produced in {+141}Pr({+63}Cu,|a2n),
194PO2c  E=278-288 MeV followed by mass separation using RITU gas-filled
194PO3c  separator, and also in |a decay {+202}Ra produced in
194PO4c  {+141}Pr({+63}Cu,2n) channel
194PO c  2014Ka23: {+198}Rn from |a decay of {+202}Ra using SHIP facility at
194PO2c  GSI. Measured position and time correlations between evaporation
194PO3c  residues (ER) and |a events, E|a, half-lives of ground state
194PO4c  and {+198}Rn, ER-|a-|a correlations. Comparison with previous
194PO5c  experimental results. A total of 16 (ER)|a|a correlated events were
194PO6c  assigned to {+202}Ra -> {+198}Rn -> {+194}Po -> {+190}Pb decay chain
194PO cA IA$Per 100 |a decays.
194PO cA HF$r{-0}({+194}Po)=1.551 fm {I10} is deduced, assuming HF(7196|a)=1.0.
198RN  P 0.0          0+               65 MS     2              7349      4
198RN cP T$Weighted average of 66 ms {I+3-2} (1999Ta03), 64 ms {I2} (1995Bi17),
198RN2cP and 50 ms {I9} (1984Ca32). Others: 38 ms {I+13-8} (2014Ka23),
198RN3cP 22 ms {I+110-10} (2005Uu02). Value is 65 ms {I3} in the Adopted levels
198RN4cP of {+198}Rn in the ENSDF database (Dec 2015 update)
198RN cP QP$From 2021Wa16
194PO  N                        1.0    AP
194PO cN BR$%|a|?100 assumed
194PO  L 0.0           0+               0.392 S  4
194PO cL T$from Adopted Levels. Other: 0.34 s {I+11-7} (2014Ka23)
194PO  A 7196      4  99.93  2 1.0
194PO cA E$weighted average of 7198 {I6} (2014Ka23), 7190 {I4} (1999Ta03),
194PO2cA 7205 {I5} (1995Bi17), and 7196 {I10} (1984Ca32)
194PO  L 319       10  2+
194PO  A 6893      8  0.07   2 110     40
194PO cA E,IA$measured by 1995Bi17.