Accession Number : AD0698844

Title :   RADIOGRAPHIC EXPOSURE GUIDES FOR MUD, STANDSTONE, LIMESTONE, AND SHALE,

Corporate Author : ILLINOIS STATE GEOLOGICAL SURVEY URBANA

Personal Author(s) : Fraser,Gordon S. ; James,Alan T.

Report Date : 1969

Pagination or Media Count : 22

Abstract : The geological X-radiologist must combine four factors that govern radiographic film density to produce a readable radiograph. The relationship of these factors--kilovoltage, exposure conditions, kind of material, and thickness of material--to a desirable film density is shown by exposure guides, which permit the radiographer to select a suitable kilovoltage and exposure for a given sample. In this study guides were prepared for marine mud, sandstone, limestone, and shale. (Author)

Descriptors :   (*SEDIMENTARY ROCK, PHOTOGRAPHIC ANALYSIS), (*RADIOGRAPHY, PHOTOGRAPHIC IMAGES), (*PHOTOGRAPHIC IMAGES, INSTRUCTION MANUALS), SANDSTONE, LIMESTONE, RADIOGRAPHIC FILM, SHALE, MUD, X RAYS, NONDESTRUCTIVE TESTING

Subject Categories : Geology, Geochemistry and Mineralogy
      Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE