Accession Number : AD0656892

Title :   AN X-RAY TELEVISION SYSTEM FOR ELECTRONICS PARTS INSPECTION.

Descriptive Note : Technical memo.,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Gilmore,Donald B. ; Marcellino,Francis T.

Report Date : JUL 1967

Pagination or Media Count : 45

Abstract : The report describes an X-ray television system for use in inspection and evaluation of electronic parts. This type of system offers several advantages over a conventional (two view, film) X-ray inspection system including: (1) The part may be translated, rotated, or tilted while being inspected. This allows an infinite number of views, lessening the chance of a defect going undiscovered. (2) Electro-mechanical parts, such as relays or switches, may be operated while being viewed. (3) The system may be adjusted for optimum resolution of the part structure, or of any suspected defect, while the device is being viewed. No waiting for film development and evaluation is required. The ability of the system to resolve details of the internal structure of electronic parts compares favorably with that of fine-grain film X-ray techniques. The X-ray television system is being used for incoming inspection, failure analysis, comparative evaluation of parts from different vendors, and evaluation of the effects of environmental tests on parts. Photographic examples of these various uses are included in this report. The report also discusses the advantages and limitations of X-ray television as an inspection tool and describes the X-ray television inspection system installation. (Author)

Descriptors :   (*NONDESTRUCTIVE TESTING, X RAY PHOTOGRAPHY), (*X RAY PHOTOGRAPHY, *TELEVISION SYSTEMS), TELEVISION CAMERAS, VIDICONS, X RAYS, TELEVISION DISPLAY SYSTEMS, RELIABILITY(ELECTRONICS)

Subject Categories : Test Facilities, Equipment and Methods
      Photography
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE