LMRT ARRT EXAM (2024) || With Questions & Answers (100% Accurate)

LMRT ARRT EXAM (2024) || With Questions & Answers (100% Accurate) LMRT ARRT EXAM (2024) || With Questions & Answers (100% Accurate) X-ray equipment capable of producing 70 kVp or more is required to have total filtration of at least: - ANSWER - 2.5 mm Al equiv The purpose of rotating the anode of the X-ray tube is to - ANSWER - Increase the heat capacity of the anode Image sharpness is determined by the - ANSWER - Size of the effective focal spot Above 70 kVp, what percentage of photons is created by the bremsstrahlung process? - ANSWER - 85% The amount detail seen in the X-ray image is referred to as - ANSWER - spatial resolution Of what material is the filament made? - ANSWER - Tungsten Of what material is the target/anode made? - ANSWER - Tungsten What is added to port to remove the long-wavelength radiation? - ANSWER - aluminum filtration What is the term used to describe the heating of a element to a hot temperature and the expanding of the electrons in a atom? - ANSWER - Thermionic emission The cathode side of the X-ray tube is - ANSWER - Negative The anode side of the X-ray tube is - ANSWER - Positive What are the two rotation speeds for the anode? - ANSWER - 3,600 rpm and 10,000 rpm What type of radiation production makes up the greatest portion of the X-ray beam- bremsstrahlung or characteristic? - ANSWER - Brehmsstrahlung How much aluminum filtration must be in the x-ray tube to meet government standards? - ANSWER - 2.5mm Al equiv The anode heel effect is most pronounced when using which size of IR - ANSWER - 14x17in IR What type of motor is used to turn the anode inside the X-ray tube? - ANSWER - Induction motor The amount of detail or resolution seen in the radiographic image Is referred to - ANSWER - Spatial resolution The international systems of units (SI) unit for measuring the ABSORBED DOSE in the patient is the - ANSWER - gray-t (Gy-t) The SI measurement of radiation EXPOSURE in Air is the