Download non-destructive soil testing using x-ray computed

Transcript
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tasks using the software to control the CT scanner will be described here: capturing an x-ray
image, running a CT scan, and reconstructing a CT image.
Capturing an X-Ray Image
Capturing an x-ray image is similar to an x-ray technician at a hospital performing an
x-ray on a patient’s broken bone. The resulting image is a view of an object’s internal
features, but seen as a two-dimensional image. Internal features may be identified, but their
exact location is unknown. The steps to capture an x-ray image using the MSU CT scanner
are as follows:
1. Turn on the x-ray console and warm it up, and turn on the power to the CT
cabinet.
2. Start the “9621” software from the Windows desktop to control the CT
equipment.
3. Click the “Home” button for the table’s vertical position to re-zero the table’s
location.
4. Move the table to an appropriate height so that the feature you wish to view is
level with the x-ray converting screen. You can view the table’s movement by
opening the cabinet and pulling the small switch near the bottom of the center
post. Be sure to close the door before turning on the x-ray.
5. Remove the lead collimators from the x-ray and the converting screen to capture a
full-screen x-ray image. If the collimators are left on, the image will contain only
a thin slice of the object.