Class Notes for PHYS1008 at Curtin University

Week 10 Doppler Ultrasound Doppler Effect Apparent change in the frequency when there is relative motion between a source of sound and an observer along a line joining them is called Doppler effect. A similar effect occurs...

Week 10 Ultrasound Artefacts Artefacts in sonography Diagnostic ultrasound machines operate according to several assumptions about the way the beam interacts with the patient. these are necessary in order for the machine t...

Week 11 Image Quality Assessment Parameters Radiographic image quality The most important characteristics of radiographic image quality are: 1. Spatial resolution 2. Contrast resolution 3. Noise 4. Arte...

Alternate Approaches to DR Scanned projection radiography (SPR) Patient positioned on CT couch, driven through gantry while xray tube is energised (xray tube, detector array stationary), result in digital radiograph Xray...

Week 9 Pulse echo principle Main bang, which is short voltage spike of 100 to 200V (1 2 ), is applied to the crystal. Short pulse of ultrasound means better axial resolution. The crystal vibrates for about 24 cycles at its...

Week 7 notes Transmission wave going through the new medium Echo wave reflected back towards the probe 1. Electrical charge applied to crystal 2. Crystal changes shape and produces ultrasound pulse 3. Some of the ultrasoun...

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This detailed and well structured Guide builds upon the Physics principles defined in its companion Guides. The basic concepts are clearly and concisely defined and the laws of Thermodynamics are clearly articulated. Graph...

This Guide is an aid to understanding one of the essential ‘hard’ sciences. Concepts such as mechanics and magnetism are explained in clear terms, aided by a number of useful examples and equations. The Guide provides the ...