Accession Number : AD0716562

Title :   Computer Analysis of Multi-channel SEM and X-ray Images from Fine Particles.

Descriptive Note : Technical rept.,

Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK MATERIALS RESEARCH LAB

Personal Author(s) : White ,E. W. ; Mayberry,K. ; Johnson,G. G. , Jr

Report Date : 22 DEC 1970

Pagination or Media Count : 94

Abstract : Techniques involving the computer processing of scanning electron microscope (SEM) images using a binary coded map approach have been developed. For each picture from one to six different SEM signals are converted from analog to digital form and recorded on magnetic tape for subsequent computer analysis. The analysis of fine grained A1203 particles and multiphase particulate mixtures are carried through from the sample preparation, the actual examination under the SEM, the digital recording of the image and finally the computer processing of the images. The computer program and the results are viewed step by step - with an explanation of the possibilities. A listing of the entire computer program is given in the Appendix. (Author)

Descriptors :   (*ELECTRON MICROSCOPY, *DATA PROCESSING), ALUMINA, ANALOG-TO-DIGITAL CONVERTERS, COMPUTER PROGRAMS, PATTERN RECOGNITION, DIGITAL RECORDING SYSTEMS, ELECTRON MICROSCOPES, AIR POLLUTION, DUST

Subject Categories : Physical Chemistry
      Computer Programming and Software
      Computer Hardware
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE