Radiology Week 1-5

4. portion of x-ray that is sharp and clearly collimated
5. foreshortening or elongation of the body part that is regularly practiced in dental radiography
7. 'picture elements'
8. a guide that tells you what numbers to input into radiography unit that calibrates it to the measurement of the patient
12. German scientist who discovered x-rays in 1895
13. value responsible for the density of the x-ray
17. VD means ____
18. term for collapsed lung
19. the electrical current within tube that determines the number of x-rays produced per second
20. the unit of power

1. thin tungsten wire that is coiled and placed in a focusing cup that produces cloud of electrons when heated
2. tool used to measure patient before x-ray
3. keep cumulative total of the individual's radiation exposure
6. _____ filtration that is part of the x-ray tube assembly that includes the collimator
9. a glass enclosure that houses the cathode and anode
10. patient is in a lying position
11. consist of tungsten 'target' upon which the electrons are focused
14. smallest quantity of any type of electromagnetic radiation
15. limits the primary beam to a defined area that also decreases scatter radiation
16. Principle to follow as radiation workers to reduce radiation doses