Browsing Physics (Scholarly Publications) by Author "FAGAN, ANDREW JOHN"
Now showing items 1-11 of 11
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Continuous wave MRI diffusion study of water in bentonite clay
FAGAN, ANDREW JOHN (Elsevier, 2005)A novel NMR technique for imaging materials exhibiting extremely short T2 relaxation times is described and some examples of its application to materials of scientific and industrial interest are presented. The technique ... -
Continuous wave MRI of heterogeneous materials
FAGAN, ANDREW JOHN (Elsevier, 2003)A prototype continuous wave MRI system operating at 7 T has been used successfully to study a variety of heterogeneous materials exhibiting T2 relaxation values ranging from 10 ?s to 50 ms. Two-dimensional images of a ... -
Continuous Wave NMR Imaging in the Solid State
FAGAN, ANDREW JOHN (2005)A novel NMR technique for imaging materials exhibiting extremely short T2 relaxation times is described and some examples of its application to materials of scientific and industrial interest are presented. The technique ... -
Development of a Multi-Nuclear CW-NMR System with 3D Imaging Capabilities
FAGAN, ANDREW JOHN; FAGAN, ANDREW JOHN (Elsevier, 2005)The development of a 3-D, multi-nuclear continuous wave NMR imaging (CW-NMRI) system is described and its imaging capability is demonstrated on a range of materials exhibiting extremely short T2 relaxation values. A variety ... -
Development of a vessel-mimicking material for use in anatomically realistic Doppler flow phantoms
FAGAN, ANDREW JOHN (2011)Polyvinyl alcohol cryogel, (PVA-C) is presented as a vessel mimicking material for use in anatomically realistic Doppler flow phantoms. Three different batches of 10 % wt PVA-C containing (i) PVA-C alone, (ii) PVA C with ... -
Effect of motion on the quantification accuracy of whole-body DWIBS
FAGAN, ANDREW JOHN (2012)Background & Methods: Diffusion-weighted whole-body imaging with background body signal subtraction (DWIBS) was introduced as a qualitative approach to detecting metastases in the body. A liver-mimicking phantom with ... -
The effects of fatty deposits on the accuracy of the Fibroscan? liver transient elastography ultrasound system
FAGAN, ANDREW JOHN (Institute of Physics, 2012)A new generation of ultrasound transient elastography (TE) systems have emerged which exploit the well-known correlation between the liver?s pathological and mechanical properties through measurements of the Young?s elastic ... -
Magnetoresistance in nanostructured Co-Ag prepared by mechanical-alloying
FAGAN, ANDREW JOHN; COEY, JOHN MICHAEL DAVID (IEEE, 1994)Fine cobalt and silver powders have been ball-milled to yield a granular solid of composition CoSoAg7a in the form of coarse powder. The material is an intimate mixture of grains of fcc CO in a silver matrix. The cobalt ... -
Noninvasive monitoring of chick development in ovo using a 7T MRI system from day 12 of incubation through to hatching
FAGAN, ANDREW JOHN (Wiley, 2007)Purpose: Movement of the chick in ovo severely degrades MR images to the point where its development can not be monitored. We wished to determine if mild cooling of the egg could reduce such motion to the point where an ... -
Serial post-mortem relaxometry in the normal rat brain and following stroke
FAGAN, ANDREW JOHN (Wiley, 2008)Purpose: Investigation of MRI for non-invasive autopsy via measurements of serial changes in relaxation parameters of the rat brain during the post-mortem interval. Materials and Methods: Post-mortem relaxometry measurements ...