Application of X-ray micro-computed tomography in (U–Th)/He thermochronology

X-ray μCT imaging technique reveals corm microstructures of an arctic-boreal cotton-sedge, Eriophorum vaginatum

“…This 3D image represents the radiodensity of the sample and can provide a structural map of its internal components. X-ray CT has proved useful in quantifying the internal structure of samples from a variety of disciplines including biology (Stock et al, 2003), histology (Cnudde et al, 2008), palaeontology (Sutton, 2008), geology (Ketcham and Carlson, 2001), thermochronology (Evans et al, 2008), hydrology (Wildenschild et al, 2002), soil science Heck, 2007a, 2007b;Jassogne et al, 2007;Torrance et al, 2008), and materials science (Wang, 2007;Tondi et al, 2009). …”

(U-Th)/He Thermochronology of the Ottawa Embayment, Eastern Canada: The Temperature-Time History of an Ancient, Intracratonic Rift Basin

“…Therefore, determining accurate FT values for nonideal crystal geometries require more direct methods of measurement. Recent work has shown the usefulness of 3D imaging when applied to single crystal dating to improve age determination (Ketcham, 2005;Herman et al 2007;and Evans et al 2008). 3D imaging can be conducted with the use of X-ray micro-computed tomography (XR-µCT), a high-resolution version of the commonly used medical computerized axial tomography (CAT) scan.…”

“…Accuracy of the age is limited by broken, rounded or eroded grains, U-Th rich inclusions, the accuracy of microscope-based dimensional measurements and analytical error Rahl et al 2003;Reiners 2005;Evans 2008). The alpha-ejection correction (FT) is used to account for the effects of alpha-ejection, a complication with the use of (U-Th)/He dating.…”

Application of micro-computed tomography to microstructure studies of the medicinal fungus Hericium coralloides

“…www.skyscan.be). Micro-CT is now regarded as an attractive and promising analytical tool to study the internal structure of samples from a variety of disciplines including biology (Stock et al 2003, Bogart et al 2010, Dinley et al 2010, SchulzMirbach et al 2012, Faulwetter et al 2013, SchulzMirbach et al 2013, palaeontology (Sutton 2008), geology (Ketcham and Carlson 2001), thermochronology (Evans et al 2008), hydrology (Wildenschild et al 2002), soil science (Elliot and Heck 2007a, b;Jassogne et al 2007;Torrance et al 2008) materials science (Wang 2007, Tondi et al 2009) and medicine (Hanson and Bagi 2004, Jones et al 2004, Cnudde et al 2008, Maret et al 2011, Schnabl et al 2012. Therefore the usage of micro-CT for fungal research might provide a useful and novel extension to conventional ways.…”

“…This imaging technique is a powerful tool with several advantages in structural characterization of biological systems: nearly no damaging of samples occurs and repeated scanning of the same sample is possible (Dutilleul et al 2005). In addition imagery from micro-CT measurements also can be viewed and reviewed in 2-D or 3-D while objects of interest can be segmented from the images as digital surfaces or isosurfaces to analyze complex structures (Evans et al 2008).…”