Roentgen discovered x-rays while working with a _____ tube? correct answers Crookes
An "electron cloud" surrounding the filament of the cathode is referred to as a correct answers
Space charge
Free electrons of X-ray production come from the correct answers Filament
The creation of the space charge in the X-ray tube produces: correct answers thermionic
emission
The majority of photons in the X-ray beam are created by which process? correct answers
Bremsstrahlung interactions
More than 99% of the energy of the electron stream is converted into: correct answers heat
the high-speed rotation (10,000 rpm) of the anode enables correct answers Greater dissipation of
heat from high technical factors
The degree of angulation of the x-ray tube target will determine the: correct answers 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 correct answers 1 and 2
, The anode heel effect is a phenomenon of X-ray production that results in: correct answers
Uneven distribution of radiation within the x-ray field
The penetrating power of the X-ray beam is controlled by varying the correct answers Peak
kilovoltage (kVp)
The rate flow of current flow across the X-ray tube is measured in correct answers 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 correct answers 1, 2, and 3
The unit used to indicate the total quantity of X-ray expose is correct answers Millionsampere-
seconds (mAs)
The device for removing long-wavelength radiation from the primary X-ray beam is the correct
answers Filter
X-ray equipment capable of producing 70 kVp or more is required to have total filtration of at
least: correct answers 2.5 mm Al equiv
The purpose of rotating the anode of the X-ray tube is to correct answers Increase the heat
capacity of the anode
Image sharpness is determined by the correct answers Size of the effective focal spot