Physics 2

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Across
  1. 2. fraction of time that pulsed ultrasound is on
  2. 3. sound scattered back in the direction from which it originally came
  3. 7. temperature at which an element material loses its piezoelectric properties
  4. 10. spatial pulse length divided by 2
  5. 12. this layer is attached to the face of a transducer element to improve transmission of sound into the body
  6. 13. related to a procedure or system in which data are represented by numeric digits
Down
  1. 1. beamwidth
  2. 4. a sophisticated form of transmission in which the driving voltage pulses have intrapulse variations in amplitude, frequency, and/or phase
  3. 5. binary digit
  4. 6. unit of viscosity
  5. 7. region of high density and pressure in a compressional wave
  6. 8. this material is attached to the back of a transducer element to reduce pulse duration
  7. 9. imaging depth
  8. 11. the principle that it is prudent to obtain diagnostic information with the least amount of possible energy exposure to the patient