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RAD Production 147
Part 1
| Question | Answer |
|---|---|
| A _______ comes from the filament and heads toward the anode | Projectile/Incident Electron |
| How do Projectile or Incident electrons travel? | From cathode to anode |
| The exact kinetic energy of a Projectile/Incident Electron is dependent on ________ | Selected kVp |
| Projectile/Incident Electron travels at speeds of roughly | 1/2 the speed of light |
| What type of Electron Interaction forms Characteristic X-Rays? | Orbital electrons of target atoms |
| What type of Electron Interaction forms Bremsstrahlung X-Rays? | Nuclear field of target atoms |
| kVp- | The maximum voltage applied across the whole tube. |
| keV- | Individual incident electron or x-ray photon energy |
| Most x-rays will have about | 1/3 of the selected kVp |
| kVp provides projectile electrons with | varying kinetic energy (Acceleration of electrons from the cathode to anode) |
| During the formation of Characteristic Radiation. the Incident electron has enough kinetic energy to eject a ______ | K Shell Electron |
| After the K Shell Electron is ejected, An ________ fills the vacancy creating an energy difference or an x-ray called characteristic radiation | Outer Shell Electron |
| The Energy of the photon emitted is equal to | The difference of the two shells’ binding energies |
| Only ______ are useful for imaging | K shell interactions |
| “Slowed down” or “braking” radiation | Brem's Radiation |
| Bremsstrahlung Radiation Involves a projectile e- and the___ | Nucleus of a Target Atom |
| Bremsstrahlung x-ray- Incident electron slowed down by a ________ Slowed electron changes direction & loses energy | Positively Charged Nucleus |
| Low energy x-rays means the | e- is barely influenced by the nucleus |
| High energy x-rays means the | e- loses most or all of it's energy |
| Most the Brems x-ray are _______ x-rays | Mid-Energy |
| __________ Involves a projectile electron and an orbital inner (k) shell electron of a target atom | Characteristic Radiation |
| Lost kinetic energy converted to x-ray energy | Bremsstrahlung Radiation |
| An outer shell electron fills the vacancy creating an energy difference or an x-ray called characteristic radiation. This process is known as a _______ | Cascade |
| Characteristic Radiation Involves a projectile electron and an orbital _______ of a target atom | Inner Shell Electron |
| Target Material, Added Filtration and Voltage Waveform are all factors that affect the _________ | X-Ray Emission Spectrum |
| Photon energy (keV) = x-ray energy = (X Axis) | Position |
| Intensity (# of photons) = (Y Axis) | Amplitude |
| The tube setting (the maximum voltage applied across the tube) | kVp |
| ______ Describes the penetrating ability of the x-ray beam | Beam Quality |
| _______ Describes the x-ray beam’s intensity | Beam Quantity |
| Emax (in keV) = | Maximum energy of the x-ray photons produced during an exposure (Y Axis) |
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