LMRT ARRT EXAM 2024

LMRT ARRT EXAM 2024 Roentgen discovered x-rays while working with a _____ tube? - Answer -Crookes An "electron cloud" surrounding the filament of the cathode is referred to as a - Answer -Space charge Free electrons of X-ray production come from the - Answer -Filament The creation of the space charge in the X-ray tube produces: - Answer -thermionic emission The majority of photons in the X-ray beam are created by which process? - Answer -Bremsstrahlung interactions More than 99% of the energy of the electron stream is converted into: - Answer -heat the high-speed rotation (10,000 rpm) of the anode enables - Answer -Greater dissipation of heat from high technical factors The degree of angulation of the x-ray tube target will determine the: - Answer -size of the actual and effective focal spot A dual-focus X-ray tube has: 1: Two filaments 2: Two focal spot sizes 3: Two anodes - Answer -1 and 2 The anode heel effect is a phenomenon of X-ray production that results in: - Answer -Uneven distribution of radiation within the x-ray field The penetrating power of the X-ray beam is controlled by varying the - Answer -Peak kilovoltage (kVp) The rate flow of current flow across the X-ray tube is measured in - Answer -mA Doubling the mA will result in