Diagnostic Imaging

1. The portion of the x-ray image that is sharp and clearly collimated
5. Type of radiation that occurs by chance
8. His discovery was the beginning of diagnostic imaging
9. Developed to absorb scattered and secondary radiation
12. Radiation are measured by
13. The outside edge or shadow where the film has been imperfectly collimated
17. Deflected energy becomes
18. Smallest particle of a substance
19. The light emitted from a dark room must be this color
20. Thickest part of the area of interest toward the cathode side

2. Processing is the single greatest cause of this on films
3. The patient’s thickness and shape
4. Radiation that reaches the film or detector
6. Consists of a tungsten “target” where electrons are focused
7. Ability to differentiate fine details within the x-ray image
10. Process by which intensifying screens react to incoming radiation
11. Not parallel central ray passing through to one of the three major directional axes
14. Positioning towards the nose
15. Typically has two filaments
16. Can cause chemical and biological damage