title: In-flight detection of small hypervelocity particles.
abstract: A technique is described in which small (25-microm) hypervelocity (10-km/sec) in-flight particles can be detected in the presence of high background noise. The system is based on a spatial filtering principle whereby spurious noise effects are reduced by use of a eam stop in the entrance aperture of the system and a bandpass filter in the transform plane. A theoretical analysis of the system is presented, and some experimental results are obtained by detecting in-flight hypervelocity particles generated by an exploding lithium wire electrothermal accelerator.
authors.forename: D M
authors.initials: DM
authors.lastname: Robinson
authors.forename: W P
authors.initials: WP
authors.lastname: Chu
authors.forename: J H
authors.initials: JH
authors.lastname: Goad