LRA 211 Final Review Study Guide

LRA 211 Final Review Study Guide Elaborated 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 A radiographic image that is too light has ________________ to visualize the anatomic structures. - excessive brightness An increase in the image size of an object compared with its true, or actual, size, is called - size distortion. As the distance increases, the beam quantity reaching a specific area - decreases. As the wave's frequency increases, the wavelength - decreases. Bremsstrahlung means - braking radiation. Classical interactions are also known as - Thomson and coherent scattering. Coherent scattering involves - an x-ray photon with low energy. Complete absorption of the diagnostic range x-ray photon is the interaction known as - photoelectric interaction. Frequency is typically measured in - hertz. If there were no contrast, the radiographic image would include - only the same shade of gray. In producing a radiographic image, which of the following occurs first? - Quality and quantity of x-ray beam exit the x-ray tube In producing a radiographic image, which of the following occurs last? - Radiation interacts with image receptor In terms of the x-ray tube, envelope is another name for the - glass or metal enclosure. Photoelectric interactions - contribute significantly to patient dose. Radiation interacting with air is more likely to be _____________, resulting in that area of the image being darker. - Transmitted Resolution is typically measured in - line pairs per millimeter. Scatter radiation - decreases the visibility of anatomic structures. Secondary photons produced during a Compton interaction - contribute to patient dose. Size distortion is also called - magnification. The ability to remove electrons from an atom is - ionization. The amount of light emitted from the display monitor is - brightness. The anode serves as a(n) - target for the electron interaction to produce x-ray, electrical conductor, heat conductor. The area of the envelope where x-rays should exit the tube is the - target window. The atomic nucleus contains - protons and neutrons. The component of the nucleus that has a positive charge and mass is the - proton. The device that receives the radiation after it exits the patient is the - Image receptor. The earliest atomic theory based on an arrangement similar to the solar system is attributed to - Rutherford. The electron shell closest to the nucleus is lettered - "K". 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. 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. The fog seen on the radiographic image is the result of - Compton interactions.