Design and Testing of an Object Measurement System for Portable X-ray Computed Tomography

Date of Award

3-2025

Document Type

Thesis

Degree Name

Master of Science

Department

Department of Engineering Physics

First Advisor

Juan J. Manfredi, Jr. PhD

Abstract

Non-destructive three-dimensional imaging is useful across various fields, including medical diagnostics, industrial applications, and national security. The ability to analyze the internal components of enclosed systems in diverse environments is crucial for strengthening security measures. A portable XCT system effectively addresses this need in contexts where the item of interest cannot be brought to a specialized laboratory. For large cylindrical objects, a horizontal roller XCT configuration facilitates imaging but requires precise dimensional measurements for accurate image reconstruction. The proposed two-point outside diameter measurement technique provides a straightforward yet effective solution that aligns with the requirements of a portable XCT system. However, achieving single-digit micron accuracy with this specific design remains unattainable due to limitations in mechanical stability, variations in roller roundness, and inconsistencies in the wheel and bearing assembly.

AFIT Designator

AFIT-ENP-MS-25-M-206

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