218TH    222U A DECAY (4.7 US)         2015KH09,1983Hi12         ENSDF    202106
218TH  H TYP=FUL$AUT=Balraj Singh$CIT=ENSDF$CUT=10-Jun-2021
218TH  H TYP=FUL$AUT=Balraj Singh, M.S. Basunia, Murray Martin et al.,$
218TH2 H CIT=NDS 160, 405 (2019)$CUT=30-Oct-2019$
218TH c  2015Kh09: {+222}U produced and identified in {+176}Yb({+50}Ti,4n),
218TH2c  E({+50}Ti)=231-255 MeV reaction. Evaporation residues (Er), separated
218TH3c  by using gas-filled TransActinide Separator and Chemistry Apparatus
218TH4c  (TASCA). Measured E|a, I|a, (Er)|a correlated events from subsequent
218TH5c  |a-decay chains, half-lives of parent nuclei corresponding to the
218TH6c  evaporation residues. The identification of {+222}U was made
218THFc  based on observed (Er)|a, two- or three-signal correlated events.
218THGc  A total of 81 Er traces were recorded for {+222}U and analyzed
218THIc  with subsequent |a decay chain: {+222}U -> {+218}Th -> {+214}Ra.
218THJc  An |a peak at 9.31 MeV {I5} was observed in this work.
218TH c  1983Hi12: W({+40}Ar,xn) E=180 MeV; products were separated
218TH2c  from the primary beam by the velocity filter; parent of {+214}Ra
218TH3c  (7.16-MeV |a). An |a group at 12.08 MeV was observed, and
218TH2c  interpreted as the superposition of |a rays from {+222}U and the
218TH3c  short-lived daughter {+218}Th. One or both |a particles were
218TH4c  presumed to leave the detector before they deposited their full
218TH5c  energy. E|a, therefore, could not be determined in this work.
218TH cA HF$The nuclear radius parameter r{-0}({+218}Th)=1.529 {I15}
218TH2cA is deduced by assuming HF=1.0 for the ground-state to
218TH3cA ground-state alpha decay branch.
222U   P 0.0          0+                 4.7 US  7              9480      50
222U  cP T$From {+222}U Adopted Levels in the ENSDF database (December 2015
222U 2cP update), where value is adopted from measurement by 2015Kh09.
222U  cP QP$From 2021Wa16
218TH  N                       1.0
218TH cN BR$Only |a decay has been observed. Theoretical
218TH2cN partial T{-1/2}=17.5 s for {+222}U |e+|b{++} decay (2019Mo01) gives
218TH3cN %|e+%|b{++}=2.7|*10{+-5}
218TH  L 0             0+               122 NS   5
218TH cL T$from Adopted Levels. 2015Kh09 measured 0.16 |ms {I4},
218TH2cL in agreement with the Adopted value, but the uncertainty is large.
218TH  A 9310      50 100       1.0
218TH cA E$measured by 2015Kh09