Optimization of a multi-source rectangular x-ray CT geometry for inline inspection

C. Bossuyt; J. De Beenhouwer; J. Sijbers

doi:10.1117/12.2633523

14 October 2022 Optimization of a multi-source rectangular x-ray CT geometry for inline inspection

C. Bossuyt, J. De Beenhouwer, J. Sijbers

Proceedings Volume 12242, Developments in X-Ray Tomography XIV; 1224219 (2022) https://doi.org/10.1117/12.2633523
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

A fast-moving economy requires X-ray technology that inspects container traffic promptly and with high accuracy to identify nonconforming cargo. Unfortunately, conventional X-ray CT with a rotating gantry cannot be used because of the limited throughput. Instead, X-ray radiographs are acquired, but these do not provide depth information of the objects to be inspected. A novel solution is to use rotation-free CT geometries, which aim to preserve the image quality by using multiple static X-ray sources, albeit their optimal position and orientation have not been extensively studied to date. In this work, we investigate a rectangular, fixed-gantry CT geometry, for which we implemented a comprehensive simulation framework using the ASTRA Toolbox.¹ In addition, the orientation of the X-ray sources was optimized to perform ROI imaging with enhanced image quality, in terms of the mean squared reconstruction error. Lastly, we challenged the equidistant distribution of X-ray sources as the preferred configuration and compared the reconstructions with those of a projected circular distribution. Although spatially bound improvements were observed, future research is required.

Conference Presentation

Citation Download Citation

C. Bossuyt, J. De Beenhouwer, and J. Sijbers "Optimization of a multi-source rectangular x-ray CT geometry for inline inspection", Proc. SPIE 12242, Developments in X-Ray Tomography XIV, 1224219 (14 October 2022); https://doi.org/10.1117/12.2633523

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available