Mcube BioCon-500 User Manual page 38

User's Manual for BioCon-500
W (z )
.3 1
I (z )
TA.3 1
z
1
z
bp
z
sp
d (z)
eq
f
c
Dim. of A
aprt
PD
PRF
p @PII
r max
d @PII
eq max
FL
Mcube Technology Co., Ltd.
www.mcubetech.co.kr
the derated ultrasonic power at axial distance z
the derated spatial-peak, temporal-average intensity at axial distance
z (milliwatts per square centimeter).
1
the axial distance corresponding to the location of max[min(W
2
I (z) x 1 cm )], where z = z
TA.3
1.69 A (centimeters).
aprt
For MI, the axial distance at which p
for TIB, the axial distance at which TIB is a maximum (i.e.,
z = z ) (centimeters).
sp B.3
the equivalent beam diameter as a function of axial distance z, and is
equal to [(4/ )(W /I
 o TA
intensity as a function of z (centimeters).
is the center frequency (MHz).
associated with the transmit pattern giving rise to the maximum
reported value of MI. For TI, for combined modes involving transmit
patterns of unequal center frequency, f
of center frequencies of the respective transmit patterns.
the active aperture dimensions for the azimuthal and elevational
planes (centimeters).
the pulse duration (microseconds) associated with the transmit pattern
giving rise to the reported value of MI.
the pulse repetition frequency associated with the transmit pattern
giving rise to the reported value of MI (Hz).
the peak rarefactional pressure at the point where the freefield,
spatial-peak pulse intensity integral is a maximum (megapascals).
See Section 6.2.4.1 of the Output Display Standard, entitled
"Measurement Methodology for Mechanical and Thermal Indices".
the equivalent beam diameter at the point where the freefield,
spatial-peak pulse intensity integral is a maximum (centimeters). See
Section 6.2.5.1 of the Output Display Standard, entitled "Measurement
Methodology for Mechanical and Thermal Indices".
the focal length, or azimuthal and elevational lengths, if different
(centimeters).
TM
(centimeters).
bp
is measured
r.3
0.5
(z))] where I (z) is the temporal-average
TA
For MI, f
c
is defined as the overall range
c
(milliwatts).
1
(z),
.3
is the center frequency
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