RTE 1000 Final exam Questions and Answers with complete solution

RTE 1000 Final exam Questions and Answers with complete solution Attentuation - answerThe process by which a beam of x-ray photons is altered as it passes through matter Remnant Radiation - answerAll radiation exiting the patient during exposure and ultimately striking the receptor List 4 Requirements that are needed for an X-ray production - answer1. Vacuum 2. Source of Electrons 3. Target for electrons 4. High Voltage The component of x ray tube that controls the size and shape of the x ray exposure field is the is the - answerCollimator ALARA - answerAs Low As Reasonably Achievable How does the use of grids affect the contrast in radiograph? - answerThe use of grids increase contrast Grids - answerlead strips that absorb 90% scatter radiation (you would need to increase technique because part of the useful beams get absorbed) Radiolucent - answermaterials allow x-ray photons to pass through easily (low radiation) Radiopaque - answermaterials that do not permit the passage of x-rays (high radiation) Kilovoltage peak (kVp) - answerHighest voltage of x-ray tube used during an exposure *CONTROLS QUALITY* *CONTROLS ENERGY OF THE BEAM* *CONTROLS CONTRAST* What happens when kVp is high? - answerScatter=increases Contrast-decreases Source-to-image receptor distance (SID) - answerx-rays diverge or spread a