Compact and versatile neutron imaging detector with sub-4μm spatial resolution based on a single-crystal thin-film scintillator

A large and increasing number of scientific domains pushes for high neutron imaging resolution achieved in reasonable times. Here we present the principle, design and performance of a detector based on infinity corrected optics combined with a crystalline Gd Ga O : Eu scintillator, which provides an...

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Bibliographic Details
Published in:Optics express 2022-04, Vol.30 (9), p.14461-14477
Main Authors: Tengattini, Alessandro, Kardjilov, Nikolay, Helfen, Lukas, Douissard, Paul-Antoine, Lenoir, Nicolas, Markötter, Henning, Hilger, Andrè, Arlt, Tobias, Paulisch, Melanie, Turek, Thomas, Manke, Ingo
Format: Article
Language:English
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Summary:A large and increasing number of scientific domains pushes for high neutron imaging resolution achieved in reasonable times. Here we present the principle, design and performance of a detector based on infinity corrected optics combined with a crystalline Gd Ga O : Eu scintillator, which provides an isotropic sub-4 µm true resolution. The exposure times are only of a few minutes per image. This is made possible also by the uniquely intense cold neutron flux available at the imaging beamline NeXT-Grenoble. These comparatively rapid acquisitions are compatible with multiple high quality tomographic acquisitions, opening new venues for in-operando testing, as briefly exemplified here.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.448932