CT results using an inverse Compton x-ray source

Seemeen Karimi; William Brown; Chris Thornton; Qiang Chen; Steven Glenn; Michael Skeate; Robert Jacob; Kei Nakamura; Tobias Ostermayr; Jeroen van Tilborg; Cameron Geddes; Harry Martz

doi:10.1117/12.2665210

14 June 2023 CT results using an inverse Compton x-ray source

Seemeen Karimi, William Brown, Chris Thornton, Qiang Chen, Steven Glenn, Michael Skeate, Robert Jacob, Kei Nakamura, Tobias Ostermayr, Jeroen van Tilborg, Cameron Geddes, Harry Martz

Author Affiliations +

Proceedings Volume 12531, Anomaly Detection and Imaging with X-Rays (ADIX) VIII; 1253102 (2023) https://doi.org/10.1117/12.2665210
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

Nondestructive characterization is often carried out on dense materials and objects, such as cargo, and high atomic number advanced manufactured, and traditionally manufactured parts and assemblies. These often require high-energy x-rays, exceeding 1 MeV, and sub-millimeter spatial resolution for characterization. Current high-energy x-ray systems offer limited flexibility in tuning the x-ray energy and spatial resolution. Current x-ray sources include bremsstrahlung tube heads that operate from 10 to 600 kV and accelerators that operate from 2 to 15 MV. The MV systems have spatial resolution on the order of a millimeter which limits the features that can be observed. An alternative approach is to use an inverse Compton scattering (ICS) x-ray source with a linear plasma accelerator (LPA). This is a powerful emerging technology that can provide tunable keV to MeV, quasi-monoenergetic x-rays, and a focal spot size on the order of a micrometer. Our research seeks to answer the question: can ICS x-ray sources fundamentally change the way x-ray non-destructive characterization (NDC) is carried out on these challenging parts, assemblies, and cargo? We performed the first CT scans using the Berkeley Lab Laser Accelerator Hundred TeraWatt (BELLA HTW) ICS x-ray source. We scanned parts of tungsten carbide and steel. Our reconstructed images, although they have artifacts, demonstrate the potential of the LPA-ICS source to image challenging objects. We will discuss the system used, results, lessons learned and paths forward.

Conference Presentation

Citation Download Citation

Seemeen Karimi, William Brown, Chris Thornton, Qiang Chen, Steven Glenn, Michael Skeate, Robert Jacob, Kei Nakamura, Tobias Ostermayr, Jeroen van Tilborg, Cameron Geddes, and Harry Martz "CT results using an inverse Compton x-ray source", Proc. SPIE 12531, Anomaly Detection and Imaging with X-Rays (ADIX) VIII, 1253102 (14 June 2023); https://doi.org/10.1117/12.2665210

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