Describe the energy of an x-ray beam. Do most of the electrons emitted make x-rays? For a given tube voltage and current, name five factors that affect the patient's dose in radiography. Holding all else fixed, how will increased SID affect the number of x-rays detected by the receptor in radiography? Holding all else fixed, how will increased mAs affect the number of x-rays detected by the receptor in radiography? Holding all else fixed, how will increased patient thickness affect the number of x-rays detected by the receptor in radiography? Holding all else fixed, how will increased screen thickness affect the number of x-rays detected by the receptor in radiography? How are x-rays produced? How does an x-ray tube limit heat buildup? How does increased exposure affect the film? How is this different in a digital system? How will increasing the kV affect the image? How will increasing the mAs affect the image? What are the major parts involved in electron generation? What are the screen and film made of? What are the two major components of an x-ray tube? What does Compton scatter do? What does the filament do? What does the transformer do in an x-ray generator? What factor most affects contrast on x-rays? What factor most affects exposure on x-rays? What factors affect the resultant exposure and image contrast in the x-ray? What forms the anode? What happens to the x-ray beam when it meets the patient? What happens when an x-ray interacts with a detector using a film cassette? What is a collimator? What is an x-ray scatter reduction grid? What is the disadvantage of using a grid? Where is a collimator placed? Which occurs more often? Which part of the x-ray tube actually emits x-rays? Which process improves contrast? Why are collimators used? Why are grids used? Book traversal links for X-rays ‹ What is the key modification in the CT scanner that allows spiral (helical) CT? Up Describe the energy of an x-ray beam. ›