Special Issue "Advances in Neutron Imaging"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Physics".

Deadline for manuscript submissions: 31 May 2021.

Special Issue Editor

Prof. Dr. Wolfgang Treimer

Guest Editor
Department Mathematics, Physics & Chemistry, University of Applied Sciences Berlin, Luxemburger Str 10, 13353 Berlin, Germany
Interests: neutron imaging; polarized neutron imaging; neutron optics; neutron interferometry; ultra-small angle neutron scattering; superconductivity

Special Issue Information

Dear Colleagues,

This special issue on “Advances in Neutron Imaging” of Applied Sciences shall publish a wide range of scientific research activities for a broad audience. It presents new and important findings using neutron imaging, reflecting many important areas of research activities in different scientific fields. Welcome are review articles, results of interdisciplinary research, as well as the latest research results from various disciplines, carried out with neutron imaging, which appeal to a broad audience.

Prof. Dr. Wolfgang Treimer
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • neutron imaging in physics research
  • material sciences
  • non-destructive investigations
  • interdisciplinary sciences
  • neutron imaging of quantum phenomena

Published Papers (2 papers)

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Research

Open AccessArticle
Mapping Spatial Distribution of Pores in an Additively Manufactured Gold Alloy Using Neutron Microtomography
Appl. Sci. 2021, 11(4), 1512; https://doi.org/10.3390/app11041512 - 08 Feb 2021
Abstract
A crucial criterion for the quality of the additively manufactured parts is the porosity content for achieving an acceptable final relative density. In addition, for jewelry applications, visible pores are unacceptable at or in the vicinity of the surface. In this study, non-destructive [...] Read more.
A crucial criterion for the quality of the additively manufactured parts is the porosity content for achieving an acceptable final relative density. In addition, for jewelry applications, visible pores are unacceptable at or in the vicinity of the surface. In this study, non-destructive 3D neutron microtomography is applied to map the spatial distribution of pores in additively manufactured red-gold samples. The 3D imaging assessment underlines the high relative density of the printed red-gold sample and indicates residual pore sizes are predominantly below the limit of concern for jewelry applications. The 3D maps of pores within printed samples highlight the effect of the scanning strategy on the final quality and location of pores in the printed samples. These results confirm that neutron microtomography is a novel and precise tool to characterize residual porosity in additively manufactured gold alloys and other higher-Z materials where such investigation using other non-destructive methods (such as X-rays) is challenging due to the limited penetration depth. Full article
(This article belongs to the Special Issue Advances in Neutron Imaging)
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Open AccessArticle
An Investigation of Radial Basis Function Method for Strain Reconstruction by Energy-Resolved Neutron Imaging
Appl. Sci. 2021, 11(1), 391; https://doi.org/10.3390/app11010391 - 03 Jan 2021
Abstract
The main objective of the current work is to determine meshless methods using the radial basis function (rbf) approach to estimate the elastic strain field from energy-resolved neutron imaging. To this end, we first discretize the longitudinal ray transformation with rbf [...] Read more.
The main objective of the current work is to determine meshless methods using the radial basis function (rbf) approach to estimate the elastic strain field from energy-resolved neutron imaging. To this end, we first discretize the longitudinal ray transformation with rbf methods to give us an unconstrained optimization problem. This discretization is then transformed into a constrained optimization problem by adding equilibrium conditions to ensure uniqueness. The efficiency and accuracy of this approach are investigated for the situation of 2d plane stress. In addition, comparisons are made between the results obtained with rbf collocation, finite-element (fem) and analytical solution methods for test problems. The method is then applied to experimentally measured continuous and discontinuous strain fields using steel samples for an offset ring-and-plug and crushed ring, respectively. Full article
(This article belongs to the Special Issue Advances in Neutron Imaging)
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