Accession Number : AD0663130

Title :   BETA-RAY BACKSCATTERING GAGE FOR MEASURING PAINT FILM THICKNESS.

Descriptive Note : Final rept. Oct 66-Mar 67,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s) : Brown,F. W. , III

Report Date : DEC 1967

Pagination or Media Count : 25

Abstract : An experimental nondestructive paint thickness gage using the backscattered beta radiation from Sr-Y-90 was developed. This gage will measure a variety of commonly used paints having thicknesses ranging from 0.5 to about 30 mils on wood with an error of approximately plus or minus 0.5 mil. Graphs are given demonstrating the performance of this gage in measuring the thickness of films of various federal specification paints (TT-P-102, TT-P-0055a, TT-E-489) and Paint A, a proprietary paint. (Author)

Descriptors :   (*PAINTS, *NONDESTRUCTIVE TESTING), COATINGS, THICKNESS, MEASUREMENT, TEST EQUIPMENT, BETA PARTICLES, BACKSCATTERING, SOURCES, GEIGER COUNTERS

Subject Categories : Coatings, Colorants and Finishes
      Mfg & Industrial Eng & Control of Product Sys
      Test Facilities, Equipment and Methods
      Nuclear Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE