Across
- 3. Scale of radiosensitivity on CT scans
- 4. Three principles of radiation protection
- 8. Interaction of photon with inner-shell electron
- 11. Replaces the flattening filter for electron treatments
- 12. Monitors and samples the Linac beam for symmetry
- 15. Abbreviation for imaging devices mounted on a Linac
- 16. The change in the apparent position of an object when viewed from different points
- 17. Source of microwave power for a Linac
- 18. The weight of a particle when it is not moving
- 20. Substance made up entirely of one kind of atom
- 21. The amount of energy required to remove an electron from an atom
- 23. Interaction of photon with outer-shell electron
- 27. An electron has a -------- charge
- 28. Discovered radioactivity in 1902
Down
- 1. Photons emitted as electrons are slowed down by the electric field near a nucleus
- 2. Reduction in intensity as an x-ray moves through matter
- 5. Incorrect application or delivery of prescribed dose
- 6. Smallest unit of an element that retains the properties of that element
- 7. The number of protons in the nucleus, Z
- 9. Shapes the x-ray beam in its cross-sectional dimension
- 10. Time required for the activity of a radioisotope sample to decay to half of its initial value
- 12. Elements that have the same number of Protons, but a different number of Neutrons
- 13. Emission or transmission of energy in the form of waves or particles through space or material
- 14. Energy deposited in matter by ionizing radiation per unit mass
- 19. Force responsible for the interaction between electrically charged particles.
- 22. Describes the relationship between intensity of a radiation beam and distance from the source
- 24. The degree of darkening on an image
- 25. Conveys microwave power to the accelerator structure in the gantry
- 26. Three-dimensional representation of image information