What describes the logarithmic unit for the measurement of sounds intensity?
What is Decibel
100
What term measures the difference between the highest and loest frequencies emitted by a tranducer?
What is Bandwidth
100
What is sound at ranges > 20,000 Hz?
What is Ultrasound
100
The ultimate responsibility for performing and operating QC before a procedure lies where?
What is the Sonographer
200
What term describes the number of cycles per second?
What is Frequency
200
What are the units of Pulse Repitition Frequency?
What is Hertz
200
What is the term called when you can destinguish two indivual objects distinctly?
What is Resolution
200
Sound will not travel in what type of media?
What is Vacuum
200
What type of cavitating bubbles expand and collapse violently, creating enormous pressure waves and increased temperature changes?
What is Transient
300
What term describes the vibration of condensed sound waves
What is Compression
300
What is the unit for Duty Factor?
What is Unitless
300
What QC is considered to be the Gold Standard in our service?
What is Tissue Equivalent Phantom
300
What is the term called when sound waves bounce intensely between two strong reflecing objects?
What is Reverberation
300
What is the propagation of sound waves called?
What is Acoustic Impedance
400
What term describes the spreading out of sound waves vibrations?
What is Rarefaction
400
What is the unit for the measure of acoustic impedance called?
What is Rayl
400
What is the process that works primarily on lateral resolution?
What is Beam Focal Zone
400
What term describes sound that returns back to the transducer?
What is Reflection
400
What process involves pre-processing reduction in random noise, to improve image quality detail and clarity?
What is Persistence
500
What term describes acoustic power per unit of sound?
What is Intensity
500
What is the unit for the measurement of ultrasound in soft tissue?
What is 1540 m/sec
500
What terms describes the ability to distinguish objects in a line parallel to the beam?
What is Longitudinal Resolution
500
What is the term called where the reflected sound transmits objects larger then the wavelength, when the surface transmitted through is relatively smooth?
What is Specular Echoes
500
What type of relationship between density and velocity of sound through tissue have?