ABSTRACT
Abstract.Anapparatuswhichvisualizethesurfacedistributionof electrontrapswasnewlydeveloped.Usingthisapparatus,various patternsoftrapdistributionswereinvestigated.Thesurfaceof polyethyleneaftersolvent-dissolvedshowedlowertrapdensitythanthat beforedissolve.Thearearubbedwithaneedleshowedhightrapdensity. Thetrapdensityofspheruliticregionofpolypropyleneshowedlower densitythanouterregionofthat.
