Accession Number : AD0285003

Title :   AN EROSION GUAGE

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : DELLALUCCA,L.E. ; SKRIVANEK,R.A. ; SOBERMAN,R.K.

Report Date : JUN 1962

Pagination or Media Count : 1

Abstract : A system for measuring small variations in film thickness was developed. The detector, alt ough origin lly developed for measuring surface erosion on a space vehicl , c lso be u e for accurate laboratory measureme s T y e use a radioactive r cer technique, monitor by a sci tillation cou ter co cted to a pulse height analyzer. For space vehicle application the use of a three-channel pulse height analyzer is particularly advantageou since it allows one to separate background ra ia io an electronic drift from the desired activity levels, while u i g only re C LEV L TELEM TRY POI TS. The fir de ctor o be flo n ill oni or the erosion of vacuum evaporated silver films approximately 100A thick. An accuracy of 3% is expected from the flight detectors. (Author)

Descriptors :   *EROSION, *SCINTILLATION COUNTERS, MEASUREMENT, RADIATION MEASUREMENT SYSTEMS COMPONENTS, RADIOACTIVE ISOTOPES, SATELLITES (ARTIFICIAL), SCHOENEMANN REACTIONS, SPACECRAFT, SURFACES, TEST EQUIPMENT, TEST METHODS

Distribution Statement : APPROVED FOR PUBLIC RELEASE