Radiographic Factors: Focal Spot Size Measurement- Radiologist Lab Report Assignment

Internal Code: MAS7637

Radiologist Lab Report Assignment:

Task: Radiographic Factors that affect Image Detail and Focal Spot Size Measurement OBJECTIVES: Gain an understanding of the effects of changing radiographic factors of focal spot size and OID have on images. Determine the focal spots sizes of the x-ray unit. Students will need an understanding from previous practicals on: 1. the use of an x-ray unit; 2. setting radiographic exposure factors; 3. set-up the x-ray unit; 4. understand the relationship between the x-ray tube, the patient (or object being radiographed) and the image receptor; 5. exposure indices (EI) that provides an indication of the radiation dose that reaches the image receptor; 6. image histograms; and 7. digitising, viewing and manipulate image brightness and contrast in an image. In this practical, students will gain an understanding of: 1. how changing the focal spot size, OID and CR image processing parameters affects image detail; 2. the use of line pair phantoms.