Static and Dynamic Three-Dimensional Studies of Water in Soil Using Computed Tomographic Scanning1

Crestana, Sı́lvio; Mascarenhas, S.; Pozzi-Mucelli, Roberto

doi:10.1097/00010694-198511000-00002

Cited by 120 publications

(66 citation statements)

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“…This 3D reconstruction technique was almost immediately used for medical applications, allowing visualisation of the human body and brain (Gawler et al, 1974;Ledley et al, 1974;Paxton and Ambrose, 1974). Applications in other research domains such as wood technology (Onoe et al, 1983;Taylor et al, 1984), palaeontology (Conroy and Vannier, 1987;Zollikofer et al, 1998), soil science (Anderson et al, 1988;Braz et al, 2000;Crestana et al, 1986;Crestana et al, 1985;Petrovic et al, 1982), marine sciences (Boespflug et al, 1995) and geosciences in general (Coles et al, 1991;Vinegar and Wellington, 1987;Wellington and Vinegar, 1987), as well as industrial applications (Hopkins et al, 1981) followed shortly.…”

Section: History and Principle Of X-ray Ctmentioning

confidence: 99%

High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications

Cnudde

Boone

2013

Earth-Science Reviews

1,266

700

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Please cite this article as: Cnudde, V., Boone, M.N., "High-resolution X-ray computed tomography in geosciences: a review of the current technology and applications", Earth Science Reviews (2013Reviews ( ), doi: 10.1016Reviews ( /j.earscirev.2013 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.A C C E P T E D M A N U S C R I P T AbstractHigh-resolution X-ray Computed Tomography (HRXCT) or micro-CT (µCT) is a frequently used non-destructive 3D imaging and analysis technique for the investigation of internal structures of a large variety of objects, including geomaterials. Although the possibilities of X-ray micro-CT are becoming better appreciated in earth science research, the demands on this technique are also approaching certain physical limitations. As such, there remains a lot of research to be done in order to solve all the technical problems that occur when higher demands are put on the technique. In this paper, a review of the principle, the advantages and limitations of X-ray CT itself are presented, together with an overview of some current applications of micro-CT in geosciences. One of the main advantages of this technique is the fact that it is a non-destructive characterization technique which allows 4D monitoring of internal structural changes at resolutions down to a few hundred nanometers. Limitations of this technique are the operator dependency for the 3D image analysis from the reconstructed data, the discretations effects and possible imaging artefacts. Driven by the technological and computational progress, the technique is continuously growing as an analysis tool in geosciences and is becoming one of the standard techniques, as is shown by the large and still increasing number of publications in this research area. It is foreseen that this number will continue to rise, and micro-CT will become an indispensable technique in the field of geosciences.

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Section: History and Principle Of X-ray Ctmentioning

confidence: 99%

High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications

Cnudde

Boone

2013

Earth-Science Reviews

1,266

700

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“…A partir da década de 1980, a Tomografia Computadorizada por Raios-X tem sido cada vez mais utilizada (Petrovic et al, 1982;Hainsworth & Aylmore, 1983;Crestana et al, 1985), com o avanço nos sistemas computacionais. Esta técnica é interessante por possibilitar a caracterização quantitativa e qualitativa do espaço poroso, tridimensionalmente, de modo não destrutivo e em alta resolução (Wang et al, 2016).…”

Section: Introductionunclassified

Microtomografia computadorizada de raios-X na caracterização morfométrica dos poros de Neossolo Regolítico Eutrofico

Costa

Antonino

Heck

et al. 2016

J. Env. Anal. Progr.

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O arranjo, orientação e organização dos grãos do solo de diferentes características são fatores determinísticos da estrutura do solo, como também, da porosidade desse meio. A porosidade possui forte influência na aeração, na transferência de água/solutos/gases/calor, na resistência à penetração e ramificação de raízes e no desenvolvimento de microorganismos, podendo ser um elemento importante na determinação da qualidade de um solo. A avaliação morfométrica do espaço poroso de um Neossolo Regolítico Eutrófico (NRe) utilizando a Microtomografia Computadorizada de Raios-x é objetivo deste estudo, onde foram analisados os atributos físicos do solo e os tamanhos, as formas e as inclinações dos vazios intra-agregados. O NRe apresentou uma porosidade de 28% (27% de vazios inter-agregados e 1% de vazios intra-agregados) e 73% de agregados. Cerca de 73% dos vazios intra-agregados possuem volumes entre 1,278 x 10-4 a 6,545 x 10-2 mm³. Há um maior volume de vazios complexos e alongados, os quais favorecem a condução de água pelo solo, e um maior volume de poros achatados, podendo indicar um certa compactação desse meio. Os vazios apresentaram-se em sua maioria como quase horizontais e inclinado, resultado da resistência a penetração de raízes devido a presença de lamelas argilosas nesse solo. A aplicação de microtomografia computadorizada de raios-X se mostrou eficiente na caracterização micromorfométrica da porosidade do solo.

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“…Since Hounsfield's work, CT can be found in several areas of knowledge like chemical and petroleum engineering, soil science and others. In soil physics CT can be used for soil water movement [2,3], soil density [4], soil structure [5,6] and soil compaction [7,8,9] studies.…”

Section: Introductionmentioning

confidence: 99%

The use of gamma ray computed tomography to investigate soil compaction due to core sampling devices

Pires¹,

Arthur²,

Correchel³

et al. 2004

Braz. J. Phys.

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Static and Dynamic Three-Dimensional Studies of Water in Soil Using Computed Tomographic Scanning1

Cited by 120 publications

References 0 publications

High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications

High-resolution X-ray computed tomography in geosciences: A review of the current technology and applications

Microtomografia computadorizada de raios-X na caracterização morfométrica dos poros de Neossolo Regolítico Eutrofico

The use of gamma ray computed tomography to investigate soil compaction due to core sampling devices

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