ARRT Radiography Exam Review 2 l Fully solved 2023

Electrons from the photocathode are concentrated and directed toward the other end of the image-intensifier tube by a series of ________ and by ________ kVp applied through the tube. - CORRECT ANSWER 1) Electrostatic Lenses (Focusing Lenses) 2) 25 Once electrons are propelled across the tube from the photocathode, they strike the ________. - CORRECT ANSWER Output Phosphor Once the energy of the electrons hits the output phosphor, it is converted by the phosphor to ________ in amounts ________ to ________ times greater than the photocathode. - CORRECT ANSWER 1) Visible Light 2) 50 3) 75 The increase in brightness from the photocathode to the output phosphor is known as ________. - CORRECT ANSWER Flux Gain The ________ phosphor is smaller than the ________ phosphor, resulting in an increase in brightness known as ________. - CORRECT ANSWER 1) Output 2) Input 3) Minification Gain Total brightness gain is a product of ________ gain and ________ gain. - CORRECT ANSWER 1) Minification 2) Flux Total brightness gain ranges from ________ to ________, and decreases as the tube ages. - CORRECT ANSWER 1) 5000 2) 20000 A complete program in a radiology department that addresses all aspects of quality, including customer service, image interpretation, accuracy of diagnosis, and distribution of radiologists' reports is known as: - CORRECT ANSWER Quality Assurance A program that specifically addresses the safe and reliable operation of equipment is known as: - CORRECT ANSWER Quality Control A quality control program is required by ________. - CORRECT ANSWER The Joint Commission Collimation must be accurate to within ________% of the source-to-image receptor distance. - CORRECT ANSWER 2 The effective focal spot size should be within ________% of the size stated in the equipment specifications. - CORRECT ANSWER 50 kVp must be accurate to within ________% of the kVp indicated. - CORRECT ANSWER 10 The exposure timer should be accurate to within ________% of the time chosen for exposures over 10 ms. - CORRECT ANSWER 5 Adjacent mA stations should be accurate to within ________% of one another. This is known as ________. - CORRECT ANSWER 1) 10 2) Exposure Linearity Radiation intensity of sequential exposures should not vary more than ________%. This is known as ________. - CORRECT ANSWER 1) 5 2) Exposure Reproduceability