Radiology Terms

7. Radiation that spreads out in different directions from a radiation beam when the beam interacts with a substance, such as body tissue
10. ______________ screens purpose is to reduce radiation
11. Radiation, Beam emitted from the x-ray source
12. This effect happens due to post-exposure and can be noticed short term
14. These waves in radiology have a high point and a low point, with time being a constant that runs through the middle
16. A guide developed to work with a specific system (film or screen) in a specific radiography room
18. Negatively charged electrode by which electrons enter an electrical device
20. This effect occurs by chance and may occur without threshold level dose

1. Unit representing the amount of current passed through the x-ray tube
2. Named according to the direction in which the central beam anatomically enters the body part, followed by the area of exit
3. Outside edge or shadow where the film has been imperfectly collimated
4. Serves the function of creating x-ray photons from electric energy supplied by the x-ray generator
5. Device for producing a small parallel beam of rays or radiation
6. Peak potential applied to the x-ray tube in which electrons from the cathode to the anode
8. An equation for determining an approximate amount of kVp for a given anatomic area on the basis of measurement and the grid being used
9. Positively charged electrode by which the electrons leave a device
13. The Anode ________ Effect is when the radiation intensity varies along the anode-cathode axis of the x-ray tube, decreasing towards the anode
15. Portion of an x-ray image that is sharp and clearly collimated
17. The number of waves passing at a given point per given unit of time
19. Added to the names of those projections in which the central ray passes parallel to one of the three major directional axes through the body part