LRA 211 FINAL REVIEW STUDY GUIDE QUESTIONS WITH CORRECT ANSWERS GRADED A+

1. The three fundamental particles of the atom are the: neutron, electron, and proton. 2. The primary source of radiation exposure to the radiographer who is in the room during an exposure is: from scatter from the patient. 3. The component of the nucleus that has a positive charge and mass is the: proton. 4. The electron shell closest to the nucleus is lettered: "k". 5. Which of the following is not part of the electromagnetic spectrum? sound 7. Which of the following electromagnetic radiations have the lowest energy level? radio waves 8. As the wave's frequency increases, the wavelength: decreases. 9. Frequency is typically measured in: hertz. 10. The process of removing an electron from an atom is: ionization. 11. X-rays are produced: using fast-moving electrons. 12. Which of the following helps to keep the x-ray tube cool on the inside of the protective housing? cooling fans and an oil bath 13. In terms of the x-ray tube, envelope is another name for the: glass or metal enclosure. 14. The positive end of the x-ray tube is the: anode. 15. The negative end of the x-ray tube is the: cathode. 16. The area of the envelope where x-rays should exit the tube is the: target window. 17. The anode serves as a(n): target for the electron interaction to produce x-ray, electrical conductor, heat conductor. 18. The two types of anode designs are stationary and: rotating. 19. Tungsten is used to coat the anode disc because it: has a high atomic number. 20. With a rotating anode, the focal spot becomes a focal: track. 21. X-rays are produced by: characteristic and bremsstrahlung interactions. 22. When filament electrons enter the anode target, they interact with: outer shell electrons of tungsten atoms. 23. The earliest atomic theory based on an arrangement similar to the solar system is attributed to: Rutherford 24. When a filament electron knocks out a k shell electron from the tungsten atom, it leads to: a characteristic x-ray photon. 25. The energy of the characteristic x-ray photon depends on: the binding energy of the inner-shell electron The energy level of the filament electron the shell of the electron that is dropping into the vacancy. 26. A filament electron removes a k shell electron and an m shell electron fills the vacancy. The k shell binding energy is 69.5 Kev and the m shell binding energy is 2.8 Kev. What is the energy of the k-characteristic photon produced? 66.7 Kev 26. Bremsstrahlung means: braking radiation. 27. The energy of the brems photon depends on: the original energy of the filament electron the strength of the attraction between the electron and the nucleus the energy of the filament electron as it leaves the tungsten atom. 28. The majority of the x-ray photons produced are: brems photons. 29. Which of the following is the primary factor controlling quantity? mas 30. As the distance increases, the beam quantity reaching a specific area: decreases. 31. Classical interactions are also known as: Thomson and coherent scattering.