206RA    210TH A DECAY                 2010HE25,1995UU01         25NDS    202503
206RA  H TYP=FUL$AUT=F.G. KONDEV$CIT=NDS 201, 346 (2025)$CUT=21-Jan-2025$
206RA c  2010He25: {+210}Th nuclide produced in {+150}Sm({+64}Ni,4n), E=294 MeV.
206RA2c  Target: 327-546 |mg/cm{+2} thick {+147}SmF{-3} enriched to 95.6%,
206RA3c  evaporated onto a 40 |mg/cm{+2} carbon foil and covered with a
206RA4c  10 |mg/cm{+2} carbon layer.
206RA5c  Evaporation residues were separated by SHIP and implanted into a 300
206RA6c  |mm thick, 35|*80 mm{+2} 16-strip positron-sensitive silicon
206RA7c  detector (PSSD). Six silicon box detectors were mounted in an open
206RA8c  box geometry upstream from the PSSD to measure the energy of |a
206RA9c  particles which escaped from the PSSD in the backward direction.
206RAac  A Clover Ge detector was also installed at the focal plane for |a-|g
206RAbc  coincidence measurements with |DT(|a-|g)|<5 |ms,
206RAcc  however no coincidences were observed.
206RA c  1995Uu01: Source produced in {+181}Ta({+35}Cl,6n), E=191, 199 MeV;
206RA2c  Target: {+181}Ta prepared by rolling with a thickness of 350
206RA3c  |mg/cm{+2}; Detectors: Gas-filled recoil separator (RITU), position
206RA4c  sensitive PIPS detector; Measured: recoil-|a{-1}-|a{-2}-|a{-3} coin,
206RA5c  excitation functions, E|a, I|a, T{-1/2}; assignment to {+210}Th
206RA6c  was based on E|a{-1}({+210}Th)-E|a{-2}({+206}Ra)-E|a{-3}({+202}Rn)
206RA6c  correlations. Others (same collaboration): 1995Le15, 1995Le41.
206RA cA HF$r{-0}=1.509 {I9} for HF=1.0
206RA cL T$From adopted levels
210TH  P 0.0               0+           15.1 MS  27                8069   6
210TH cP T$Weighted average 14 ms {I4} (2023Ch24) and 16.0 ms {I36} (2010He25).
210TH cP $Q(|a) from 2021Wa16
206RA  N                          1    AP
206RA  L 0.0          0+               0.24 S    2
206RA  A   7917    6   100     1.0     AP
206RA cA E$From 2010He25. Others: 7922 keV {I14} (2023Ch24), 7899 keV {I17}
206RA2cA (1995Uu01), 7896 keV {I25} (1995Le41,1995Le15), 7810 keV {I50}
206RA3cA (1996Ik01)