A New NDE (Non-Destructive Evaluation) Capability for Thin-Shelled Structures.
Abstract
A new imaging modality suited for thin-shelled structures was evaluated for feasibility during Phase I. The approach is based on well-established digital tomosynthesis principles and modern real-time digital radiography techniques. A series of component radiographs of a structure taken from many different angles are manipulated according to a restorative algorithm to recover a set of images of parallel surfaces within and concentric to the natural shape of the object. Consequently, the proposed instrument, which has been designated a Digital Tomograph (DT), is tailored for non-destructively evaluating structures which are fabricated in a laminar or multilayer fashion. A Phase II program to develop and demonstrate a pre-prototype scanner is proposed based on the Phase I cocneptual design. The preprototype DT system, with full imaging capabilities, although limited throughput capability, will be compatible with Phase III prototype commercialization. Additional keywords: Laminography, Digital radiography. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1984
- Accession Number
- ADA149625
Entities
People
- J. H. Stanley
- J. L. Chambers
- M. J. Boyle