{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T19:10:59Z","timestamp":1760209859454,"version":"build-2065373602"},"reference-count":24,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2017,12,5]],"date-time":"2017-12-05T00:00:00Z","timestamp":1512432000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"US Department of Energy","award":["EPS-1003897"],"award-info":[{"award-number":["EPS-1003897"]}]},{"name":"Charles E. Coates Memorial Fund"},{"DOI":"10.13039\/100006952","name":"Louisiana Board of Regents","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100006952","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Imaging"],"abstract":"<jats:p>A novel neutron far field interferometer is explored for sub-micron porosity detection in laser sintered stainless steel alloy 316 (SS316) test objects. The results shown are images and volumes of the first quantitative neutron dark-field tomography at various autocorrelation lengths,    \u03be   . In this preliminary work, the beam defining slits were adjusted to an uncalibrated opening of 0.5 mm horizontal and 5 cm vertical; the images are blurred along the vertical direction. In spite of the blurred attenuation images, the dark-field images reveal structural information at the micron-scale. The topics explored include: the accessible size range of defects, potentially 338 nm to 4.5    \u03bc   m, that can be imaged with the small angle scattering images; the spatial resolution of the attenuation image; the maximum sample dimensions compatible with interferometry optics and neutron attenuation; the procedure for reduction of the raw interferogram images into attenuation, differential phase contrast, and small angle scattering (dark-field) images; and the role of neutron far field interferometry in additive manufacturing to assess sub-micron porosity.<\/jats:p>","DOI":"10.3390\/jimaging3040058","type":"journal-article","created":{"date-parts":[[2017,12,5]],"date-time":"2017-12-05T11:50:28Z","timestamp":1512474628000},"page":"58","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Neutron Imaging of Laser Melted SS316 Test Objects with Spatially Resolved Small Angle Neutron Scattering"],"prefix":"10.3390","volume":"3","author":[{"given":"Adam","family":"Brooks","sequence":"first","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2023-992X","authenticated-orcid":false,"given":"Gerald","family":"Knapp","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6302-4286","authenticated-orcid":false,"given":"Jumao","family":"Yuan","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA"}]},{"given":"Caroline","family":"Lowery","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA"}]},{"given":"Max","family":"Pan","sequence":"additional","affiliation":[{"name":"Baton Rouge Magnet High School, Baton Rouge, LA 70806, USA"}]},{"given":"Bridget","family":"Cadigan","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA"}]},{"given":"Shengmin","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA"}]},{"given":"Daniel","family":"Hussey","sequence":"additional","affiliation":[{"name":"National Institute of Standards and Technology, 100 Bureau Dr., Mail Stop 8461, Gaithersburg, MD 20899-8461, USA"}]},{"given":"Leslie","family":"Butler","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA"}]}],"member":"1968","published-online":{"date-parts":[[2017,12,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1154","DOI":"10.1557\/mrs.2015.234","article-title":"Additive manufacturing of materials: Opportunities and challenges","volume":"40","author":"Babu","year":"2015","journal-title":"MRS Bull."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"494","DOI":"10.6028\/jres.119.019","article-title":"Porosity Measurements and Analysis for Metal Additive Manufacturing Process Control","volume":"119","author":"Slotwinski","year":"2014","journal-title":"J. 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