Physics

7. subject ___________ refers to the impact the subject has on resulting image receptor exposure
8. the ability to distinguish between objects that attenuate
9. the difference in adjacent exposure levels of a recorded image
12. The patient is the greatest _________ the radiographer faces when performing procedures
14. increase in KVP = increase in ________
15. destructive diseases cause the image receptor exposure to ________
17. scatter is __________ and is undiagnostic exposure to IR
19. used to correspond with field size and put on collimator head

1. grides are placed between the ________and the image receptor
2. how tightly atoms of a given substance are packed together
3. a form of scatter restriction- does not decrease patient dose
4. describes white on image, objects x-rays cant pass through easily - bone, contrast
5. ___________ pathology causes the tissue to increase in thickness, atomic number, or density
6. lead ________ is an ancillary device used to
7. misrepresenting the size or shape of the structure of interest- can be done purposefully with varying angles and patient obliquity
10. has a low tissue density, x-rays are able to pass through creating more image receptor exposure
11. highest atomic number in body, responsible for photoelectric absorption or white on image
13. _______subject contrast body parts include skull, spine, knee
14. image _________ is dependent on the distance between the structure and its relationship to the image receptor
16. reduction in the number of x-ray photons remaining in the beam after passing through a given thickness of material
18. as kvp increases patient _________ decreases because of the decrease in mAs