Project Title:
Advanced Area Detector for Real-Time Radiography of Aeropropulsion Materials
04.03-7780
911480
Advanced Area Detector for Real-Time Radiography of Aeropropulsion Materials
Advanced Research & Applications Corporation
425 Lakeside Drive
Sunnyvale
CA
94086
Christopher R.
Mitchell
408-733-7780
LeRC
NAS3-26507
045
04.03-7780
911480
Abstract:
Advanced Area Detector for Real-Time Radiography of Aeropropulsion Materials
The objective of Phase I is to quantify the effect of x-ray scatter on radiographic
image quality, test scatter rejection approaches, and generate a conceptual design
of a system that will provide better resolution, contrast sensitivity, and dynamic
range than is currently available with commercial real-time radiography systems.
Presently, real-time radiography systems do not reject scatter and this has a significant
effect on the performance of these systems. X-ray systems with enhanced resolution,
contrast sensitivity, and dynamic range are needed for the imaging of advanced aeropropulsion
materials that are now being developed. Information gathered from such a system will
be useful in developing accurate models to predict material behavior. Incorporation
of such a system with a load frame will allow information to be gathered on how these
materials behave under mechanical load. The system will also be designed to be compatible
with a future upgrade to a volumetric computed tomography (CT) system, providing
even greater information on advanced material behavior. NASA will be able to use
both the near real-time radiographic and volumetric computed tomography systems to
study advanced aeropropulsion material behavior and provide information to guide
the modeling of these material systems.
The construction of a real-time radiographic system with enhanced resolution, contrast
sensitivity, and dynamic range over currently available systems will extend the use
of these systems, open up many new applications of x-ray imaging, and lead the way
to volumetric computed tomography (CT) systems that will greatly increase the throughput
and utility of CT technology.
radiography, real-time, aeropropulsion, materials, scatter, processing, computed
tomography, models