RAD 100 - Exam 3 Questions and Answers 2026

RAD 100 - Exam 3 Questions and Answers 2026 1. Compton scatter originates with an incident photon interacting with the orbital of a target atom.: electrons 2. Characteristic x-ray photons produced during the photoelectric effect can contribute to patient dose.: increasing 3. With Compton scattering, when the orbital electron is dislodged, the energy of the incident photon is and the atom is .: reduced , ionized 4. With the photoelectric effect, the incident photon is completely by the atom when it its energy to an inner shell electron, causing it to be ejected from the atom.: absorbed , transfers 5. An x-rays interaction with matter correspond to the of the pho- ton.: energy 6. Pair production occurs at energies over MeV and photodisintegra- tion occurs at energies at or above Mev.: 1.02 , 10 7. Low-energy x-rays tend to interact with the whole , while pho- tons with midrange energies tent to interact with the orbital . High-energy photons tend to interact with the .: atom , electrons , nucleus 8. Compton scattering reduces the energy of the x-ray and the secondary atom.: ionizes 9. Pair production and photodisintegration do not occur in the energy range.: diagnostic 10. Object to image receptor distance distance from the part to the IR: Ob- ject-Image Distance (OID) 11. x-ray beam that exits the patient; made up of imaging forming x-rays and scatter: Remnant Beam 12. negative electrode in the x-ray tube: cathode 13. digital radiographic imaging using a cassette containing an imaging plate- : Computed Radiography (CR) 14. solutions or gasses introduced into the body to increase the scale of contrast: Contrast Media 15. a device that is placed between the patient and the image receptor that absorbs scatter from the patient: Grid 16. misrepresentation of the size or shape of the object as recorded in the radiographic image: Distortion 17. an unwanted marking on a radiographic image: artifact 18. the visible difference between two selected areas of brightness within the radiographic image: Contrast 19. distance from the source (anode in the x-ray tube) to the image receptor: - Source to image receptor distance; (SID) 20. the amount of light coming from the monitor displaying the radiographic image: Image Brightness 21. positive electrode in the x-ray tube: anode 22. box-like structure attached to the x-ray tube housing containing lead shut- ters that limit the size of the x-ray beam: collimator 23. an exposure factor that determines the penetrating ability of the x-ray beam: kVp 24. path the x-ray beam takes as it passes through the body: Radiographic projection 25. x-rays created in the patient that diverge from the primary beam path; highest source of occupational dose: Scatter Radiation 26. area of the anode from which x-rays emanate: Focal spot 27. live action imaging of the body using x-rays; functional imaging: Fluo- roscopy 28. an exposure factor that determines the amount of x-ray photons produced in the x-ray tube: mAs