Accession Number : AD0288016

Title :   ABSOLUTE LUMINOSITY, SIZE, AND VELOCITY OF INDIVIDUAL LABORATORY MICROMETEORS

Corporate Author : HIGH VELOCITY LAB UNIV OF UTAH SALT LAKE CITY

Personal Author(s) : BRYNER,J.C. ; PALMER,E.P. ; KADESCH,R.R.

Report Date : JUL 1962

Pagination or Media Count : 1

Abstract : Single, submicron-sized artificial meteors with velocities as high as 10.2 km/sec were observed for the first time. These particles are found in the spray resulting from the impact of 7/32 inch steel balls upon massive iron targets in a vacuum detection chamber with the pressures ranging between 0.1 and 1.0 mm of mercury. Spray particle velocities are measured by a timeof-flight technique using four photomultiplier detectors whose outputs are displayed on two Tetronix type 551 oscilloscopes. Absolute luminosity measurements of the individual spray particles are made representing the first such data obtained under controlled laboratory conditions and for particles of known size and mass. (Author)

Descriptors :   *HYPERVELOCITY PROJECTILES, *METEORS, ABLATION, DETECTORS, IRON, LUMINESCENCE, PHOTOMULTIPLIER TUBES, SPHERES, VACUUM APPARATUS, VELOCITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE