Physics III Review #2

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Across
  1. 3. interaction between an extremely high energy photon (above 10 meV) and the nucleus
  2. 7. scatter emitted from the patient is the primary cause of ____________ radiation exposure
  3. 8. radiation, radiation produced in irradiated matter outside of the x-ray target is considered ________________________
  4. 11. radiation, occurs when a scattered photon is deflected back toward the source
  5. 13. scattering, produces a recoil electron
Down
  1. 1. absorption, interaction with matter that results when x-ray photons interact with an inner shell electron
  2. 2. reaction, occurs during pair production as a result of matter being converted back to energy
  3. 3. radiation, radiation produced in the target is considered _____________________
  4. 4. radiation, essentially the same as x-rays except for origin
  5. 5. production, tissue interaction that creates a pair or electrons
  6. 6. ___________ scattering is the result of an interaction that results when a low energy photon interacts with matter causing vibration of an electron.
  7. 9. decrease in the intensity of the beam as it passes through matter
  8. 10. when a photon interacts with an atom and changes direction
  9. 12. _______ radiation is externally harmless but extremely harmful internally due to intense local tissue irradiation