| Across |
|---|
| 4. | -Formation, growth, and pulsation of gas-filled bubbles caused by US |
| 5. | -2 WORDS: Proportion of the total Rx time that the US is on |
| 6. | -# of compression-rarefaction cycles per unit of time, expressed in cycles per second |
| 7. | -Amount of acoustic energy per unit time, expressed in watts |
| 9. | -Spatial average intensity of the US during the on time of the pulse |
| 11. | -2 WORDS: Steady, circular flow of cellular fluids induced by US |
| 16. | -Initials for the ratio of the spatial peak intensity to the spatial average intensity |
| 18. | -2 WORDS: Fraunhofer zone or Divergent region |
| 20. | -2 WORDS: Intensity maxima and minima at fixed positions one-half wavelength apart |
| 23. | -Redirection of an incident beam away from a surface at an angle equal and opposite to the angle of incidence |
| 24. | -Property of being able to generate electricity in response to a mechanical force/ being able to change shape in response to an electrical current |
| 26. | -Spatial peak intensity of the US output over the head of the transducer is ________ in the center of the beam |
| 27. | -Power per unit area of the sound head, expressed in watts per centimeter squared |
| 28. | -Increase in density of a material as US waves pass through it. |
| 29. | -2 WORDS: Fresnel zone or Convergent region |
| 30. | - 2 WORDS: Depth of tissue at which the US intensity is half its initial intensity |
