A Quadruple Multi-Camera Neutron Computed Tomography System at MLZ

A Quadruple Multi-Camera Neutron Computed Tomography System at MLZ

Burkhard Schillinger, Jens Krüger

Abstract. Most neutron imaging systems can accommodate large samples, but recent interest is more focused on small cm-sized samples. With a small field of view for a camera-based detection system, the neutron flux per pixel decreases, and measurement time increases. An earlier approach split a large field of view into smaller fields for individual CT measurements using several rotation axes in the field of view of the camera, but reduces the available amount of camera pixels per tomography field, while many applications require the highest possible resolution even or especially for very small samples. A new approach at MLZ uses a multiple camera system with multiple rotation stages to make better use of the full size of the original neutron beam. With four cameras stacked in a 2×2 matrix, only two rotation stages are required where samples are stacked in an aluminum tube with cutouts above each other. A small, but high quality cooled CMOS camera is employed; joint shielding is built up on the outside of the boxes with lead bricks and PE plates. The first prototype is already working; four more camera boxes are currently in production and will be completed soon. First high-resolution results are shown.

Keywords
Detector, Multi-detector, Neutron Imaging, Neutron Computed Tomography

Published online 1/5/2020, 5 pages
Copyright © 2020 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Burkhard Schillinger, Jens Krüger, A Quadruple Multi-Camera Neutron Computed Tomography System at MLZ, Materials Research Proceedings, Vol. 15, pp 92-96, 2020

DOI: https://doi.org/10.21741/9781644900574-15

The article was published as article 15 of the book Neutron Radiography

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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