title: Far-field holography of ampule contaminants.
abstract: Detection and measurement of contaminating particles in cylindrical ampules have been achieved using far-field holography. The degradation of the images caused by the cylindrical nature of the ampule was overcome by index matching and clear images of particles as small as 5 microm in diameter were obtained.
authors.forename: J S
authors.initials: JS
authors.lastname: Crane
authors.forename: P
authors.initials: P
authors.lastname: Dunn
authors.forename: B J
authors.initials: BJ
authors.lastname: Thompson
authors.forename: J Z
authors.initials: JZ
authors.lastname: Knapp
authors.forename: J
authors.initials: J
authors.lastname: Zeiss