There is renewed interest in using advanced techniques to characterize ancient Roman concrete. In the present work, samples were drilled from "Hospitium" Pompeii and analyzed by synchrotron microtomography (uCT) neutron radiography study how microstructure, including presence of induced cracks, affects their water adsorption. The distribution absorptivity quantified radiography. 3D crack propag...

We demonstrate a new image processing methodology for resolving gas bubbles travelling through liquid metal from dynamic neutron radiography images with intrinsically low signal-to-noise ratio. Image pre-processing, denoising and bubble segmentation are described in detail, practical recommendations. Experimental validation is presented - stationary moving reference bodies neutron-transparent c...

Abstract The structure of five rare filigree spheres from a seventeenth century shipwreck was examined in order to unravel their condition, manufacturing process and function. This study focuses on the application non-invasive imaging techniques: optical microscopy, X-radiography, X-ray micro-computed tomography neutron computed tomography. A valuation different aspects applied techniques made,...

This paper reports the analysis of a single crystal copper rod aiming to characterize microstructural features related homogeneity growth and presence, shape extension spatially distributed misaligned grains or areas. The analytical method used for such is wavelength scan neutron radiography monochromatic tomography. Such methods allow determination extent differently oriented areas, identifyin...

Neutron radiography (NR) and computed tomography (NCT) are important non-destructive testing tools which determine information about an object’s interior structure and material properties. Although water quantification using 2-D neutron imaging has been applied to fuel cells for over a decade, the development of an accurate 3-D method has only recently been demonstrated. The 3-D water quantific...

The problems of corrosion and deposit are crucial issues in the pipelines of the chemical, nuclear and petrochemical industries. Radiography (neutron, gamma, X-ray) has long been used as a technique for pipe inspection and corrosion monitoring. The 10MW Budapest research reactor site is a source of various energy neutron (thermal and epithermal) and gamma radiation. The detector system was a Pe...

Since 2002 the Commonwealth Science and Industrial Research Organisation (CSIRO) has been working with the Australian Customs Service to develop a scanner capable of directly imaging airfreight containers in 1-2 minutes [1-4]. The scanner combines fast neutron and gamma-ray radiography (FNGR) to provide high-resolution images that include information on material composition. By collecting trans...