WorksheetsIntensities
Total questions: 13
Worksheet time: 7mins
Intensities are reported in various way in respect to
time and money
space and density
space and time
"on" and "off" times
The different measurements of intensities are important in the study of ____.
ultrasound physics
bioeffects
duty factor
pulse duration
___ is the most relevant intensity with respect to tissue heating.
SATA
SPPA
SPTP
SPTA
The units for all intensities are ___.
W/cm
W/cm2
mW/cm
mW/cm2
____ intensity has the highest value, where ____ intensity has the lowest value.
SATP, SPPA
SATP, SPTP
SPTA, SAPA
SPTP, SATA
This describes the spread of a beam in space.
beam uniformity coefficient
SP/SA factor
duty factor
intensity reflection coefficient
The SP/SA factor has a value of _____.
1 or less
1 or greater
between 0 and 0.1
Duty factor describes the relationship of beam intensities with _____.
time
space
speed
velocity
True or False. For continuous wave ultrasound, SPTA = SPPA.
true
false
True or False. For continuous wave ultrasound, SATA = SATP.
true
false
When PW & CW sound beams have the same SPTP, the CW has the higher ____ intensity.
SAPA
SATA
SPTA
SPPA
When PW & CW sound beams have the same SATP intensities, the CW beam has the higher ____ intensity.
SATA
SPTA
SAPA
SPPA
True or False. The rank of intensities from largest to smallest is: SPTP --> Im --> SPPA --> SPTA --> SATA
true
false
