An Affordable Image Detector and a Low-Cost Evaluation System for Computed Tomography Using Neutrons, X-Rays or Visible Light

Burkhard Schillinger

doi:10.20944/preprints201910.0168.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 14 October 2019 / Approved: 15 October 2019 / Online: 15 October 2019 (11:15:26 CEST)

Neutron computed tomography (nCT) has been established at many major neutron sources worldwide, using high-end equipment requiring major investment and development. Many older and smaller reactors would be capable of doing nCT as well, but cannot afford the investment before feasibility is proven. We have developed a compact low-cost but high-quality detection system using a new cooled CMOS camera that can either be fully integrated into a sophisticated setup, or used with a rudimentary CT control and motion system to quickly evaluate feasibility of neutron CT at a given beam line facility. Exchanging the scintillation screen makes it feasible for X-rays as well, even for visible light (and transparent samples) using a matte screen. The control system uses a hack to combine motion control with existing imaging software so it can be used to test several dozen different cameras without writing specific drivers. Freeware software can do reconstruction and 3D imaging.

neutron imaging; neutron detector; X-ray detector; CCD camera; CMOS camera; collimator; X-rays; image processing; computed tomography; CT reconstruction

PHYSICAL SCIENCES, Radiation & Radiography

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An Affordable Image Detector and a Low-Cost Evaluation System for Computed Tomography Using Neutrons, X-Rays or Visible Light

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