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Gamma-Ray Imaging with CORIS360

  • 23 Feb 2021
  • 1:00 PM
  • Zoom Meeting, please register to receive the Zoom link

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Gamma-Ray Imaging with CORIS360

Presented by:  Mathew Guenette , ANSTO

Mathew Guenette is a senior physicist working in the ANSTO Detection and Imaging group. His main focus is on the research and development of novel gamma ray imaging technologies and radiation detection for applications in the areas of decommissioning and decontamination, nuclear security and safeguards, and health physics.

Previously he worked as a post-doctoral researcher at the ANSTO Institute of Materials Engineering on the topic of plasma-surface interactions of nuclear fusion materials, and completed a PhD in physics at the University of Sydney between 2007-2011.

Abstract:

Matthew will be discussing the design and development of CORIS360, a novel gamma-ray imaging system based on the theory of compressed sensing. From the first stages as a simple MATLAB simulation, through to prototype design iterations, and finally launch as a commercial product.

Gamma-ray imaging can provide an important, non-invasive radiation detection capability in many applications including, radiation services and health physics, first responders to radiological incidents, nuclear operations, defence, and decommissioning.

The CORIS360 gamma-ray imager design provides a large imaging field of view (360° × 90°) and covers a wide energy range of 40 keV to 3.5 MeV. Radionuclides are automatically identified from the collected gamma spectrum and the reconstructed gamma image is overlaid on a 360° × 90° optical panorama to allow for easy visualization of radionuclide location. By using interchangeable CLLBC detectors of different sizes, gamma-ray imaging in a wide range of dose rates is possible.

CORIS360 utilizes compressed sensing, a signal processing theory that allows for image reconstruction from a highly under sampled set of measurements. Compressed sensing gamma-ray imaging exploits the sparsity typically found in gamma-ray images, resulting in significantly faster image acquisition times and improved image quality. This technique provides a novel and highly configurable spectroscopic imaging capability for applications in the nuclear industry.

Technical details and specifications of the CORIS360 design will be presented, as well as a variety of examples of real-world applications.

To register for this event, please email: amanda@arps.org.au

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