Mobility of thorium ions in liquid xenon
  We present a measurement of the $^{226}$Th ion mobility in LXe at 163.0 K and 0.9 bar. The result obtained, 0.240$\pm$0.011 (stat) $\pm$0.011 (syst) cm$^{2}$/(kV-s), is compared with a popular model of ion transport. 
K. Wamba, C. Hall, M. Breidenbach, R. Conley, A. Odian, C.Y. Prescott,   P.C. Rowson, J. Sevilla, K. Skarpaas, R. DeVoe, Z. ...