%0 Journal Article %T A compact Paul ion trap for the study of space-charge effects in drift-tube linear accelerators %A Okamoto,, Hiromi %A Kojima,, Kunihiro %A Ito,, Kiyokazu %J Progress of Theoretical and Experimental Physics %V 2019 %N 9 %@ 2050-3911 %D 2019-09-01 %I Oxford University Press %~ DeepDyve