Accession Number : AD0639297

Title :   A HIGH INTENSITY SHORT DURATION PHOTOGRAPHIC LIGHT SOURCE FOR USE AT LOW AMBIENT PRESSURE.

Descriptive Note : Technical note.

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : WILLIAMS,Jack S.

Report Date : JUN 1966

Pagination or Media Count : 19

Abstract : The report describes an enclosed spark gap light source designed to be operated in a low pressure environment. While the light intensity from an open spark gap is greatly reduced at lower ambient pressures, the enclosed spark gap system maintains a constant light intensity through a range of ambient pressures from 760 millimeters to 100 microns of Hg. In addition, other electrical problems that occur at reduced pressures are eliminated. (Author)

Descriptors :   (*PHOTOGRAPHIC LIGHTING SYSTEMS, HIGH SPEED PHOTOGRAPHY), SPARK SHADOWGRAPH PHOTOGRAPHY, SPARKS, KERR CELLS, INTENSITY, ENCAPSULATION

Subject Categories : Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE