X-Radiography & CT Scanning
X-radiography and Computed Tomography (CT) Scanning are powerful, nondestructive imaging techniques used extensively in medical, biological, geological, archeological and engineering research. In both techniques a sample is bombarded with x-rays, which penetrate through the object and are attenuated at differing levels. Variations in composition and thickness in the sample are displayed as contrast (dark and light areas) on a monitor. While x-radiography provides us with a top-down view only, CT scanning performs cross-sectional imaging of an object and can be used to provide 2-D and 3-D images.
Our lab is equipped with a high performance amorphous-silicon Thales Flash Scan 35 flat panel imaging system for x-radiography work. This imaging system has an active area of 285 mm x 406 mm, providing 2240 x 3200 pixels (at a pixel size of 127 mm). CT scanning is done using a whole-body Toshiba Xpress/GX helical CT scanner which has a reconstruction matrix of 512 x 512 pixels. The couch provides a scan range of up to 140 cm and can support a load of up to 200 kg (spread out over the entire length). Slice thicknesses as small as 1 mm are possible. The facility is also provides access to VGStudio Max software for rendering 3-D volume graphics.
All users must wear their dosimeters while in the lab. Additionally, dedicated users will have to attend a Radiation Safety Course provided by MUN’s radiation officer. Please see Wanda for details.
For additional information or to arrange services, please contact Wanda Aylward.