LMRT ARRT EXAM QUESTIONS WITH 100% CORRECT ANSWERS!!

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