Radiographic Evaluation of Potting Voids in Electronic Fuzes.
Abstract
As a first step in the development of techniques for detecting voids in low-density polyurethane potting foam (encased in steel) for electronic fuzes, several radiological sources were explored, and several imaging systems were investigated. Although neutron radiography is not practical at the present time, it warrents further research. A void 0.1 x 0.5 in. was discernible through steel, but neutron radiography required a 60-min exposure time and an overnight decay onto film. A scintillation system utilizing x-ray radiography with a scanning detector proved to be more compatible with factory inspection. The same size void was discernible through aluminum and, with a few refinements, this system promises to describe even smaller voids through aluminum and steel.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1976
- Accession Number
- ADA033086
Entities
People
- Ruth Chaddick
Organizations
- Harry Diamond Laboratories