Ultrasonic computed tomography

Principle

This experiment explains the fundamental principles of image formation with a CT algorithm. A test object is used to create an attenuation tomogram and a time-of-flight tomogram followed by a discussion of the respective differences.

Benefits

• Ideal system for education: affordable compared to industrial system to demonstrate ultrasound-CT in a very comprehensible way
• With the same system mechanical scanning of an object can be performed, e.g. to create a B-scan image

Tasks

1. Creation of several attenuation and time-of-flight tomograms
2. Variation of the device parameters
3. Discussion of the differences

Learning objectives

• Ultrasonic echography (A-scan)
• Tomography
• Resolution