{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,12]],"date-time":"2025-11-12T03:24:10Z","timestamp":1762917850517,"version":"build-2065373602"},"reference-count":41,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2018,2,13]],"date-time":"2018-02-13T00:00:00Z","timestamp":1518480000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Imaging"],"abstract":"<jats:p>The energy-dependence of the neutron cross section provides vastly different contrast mechanisms than polychromatic neutron radiography if neutron energies can be selected for imaging applications. In recent years, energy-resolved neutron imaging (ERNI) with epi-thermal neutrons, utilizing neutron absorption resonances for contrast as well as for quantitative density measurements, was pioneered at the Flight Path 5 beam line at LANSCE and continues to be refined. Here we present event centroiding, i.e., the determination of the center-of-gravity of a detection event on an imaging detector to allow sub-pixel spatial resolution and apply it to the many frames collected for energy-resolved neutron imaging at a pulsed neutron source. While event centroiding was demonstrated at thermal neutron sources, it has not been applied to energy-resolved neutron imaging, where the energy resolution requires to be preserved, and we present a quantification of the possible resolution as a function of neutron energy. For the 55 \u03bcm pixel size of the detector used for this study, we found a resolution improvement from ~80 \u03bcm to ~22 \u03bcm using pixel centroiding while fully preserving the energy resolution.<\/jats:p>","DOI":"10.3390\/jimaging4020040","type":"journal-article","created":{"date-parts":[[2018,2,13]],"date-time":"2018-02-13T14:23:48Z","timestamp":1518531828000},"page":"40","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Event Centroiding Applied to Energy-Resolved Neutron Imaging at LANSCE"],"prefix":"10.3390","volume":"4","author":[{"given":"Nicholas","family":"Borges","sequence":"first","affiliation":[{"name":"Department of Physics, Worcester Polytechnic Institute, Worcester, MA 01609, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5307-356X","authenticated-orcid":false,"given":"Adrian","family":"Losko","sequence":"additional","affiliation":[{"name":"Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2049-0361","authenticated-orcid":false,"given":"Sven","family":"Vogel","sequence":"additional","affiliation":[{"name":"Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,2,13]]},"reference":[{"doi-asserted-by":"crossref","unstructured":"Lehmann, E.H. 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