Texo Parameter Effects

Introduction
In order to characterize the Sonix RP machine in terms of the relationship between its image and TEXO parameters, several experiments were conducted. To minimize variables, a default setting is applied to all parameters except for the variable in question. The default setting is as follows:

In all the experiment, to avoid imaging artifacts, the first frame was ignored and the second frame was used in the study.

Transmit Frequency Effects
The first experiment will determine the effects of pulse frequency on the return echo pulse shape. In this experiment, the frequency was varied from 4 MHz ~ 10 MHz.



Burst Cycle Effects
The second experiment will determine the effects of pulse length on the return echo pulse shape. In this experiment, the length of the transmitted burst was set at 2, 4, and 8 cycles.



Varying Power Level
This experiment will determine the effects of varying power level on the return echo pulse shape. In this experiment, the power level was varied from 5 to 15.



Varying TGC Setting
This experiment will determine the effects of varying TGC setting on the return echo pulse shape. In this experiment, the TGC was varied from 0% to 100% in 10% increments.



Varying Transmit Aperture Size
A series of scans were taken at different transmit to receive aperture ratios: Tx/Rx: 64/32, 32/32, 16/32, 8/32



Varying Receive Aperture Size
A series of scans were taken at different transmit to receive aperture ratios: Tx/Rx: 16/32, 16/16, 16/8, 16/4



Masking Mechanism Characterization
In order to depict the masking mechanism, a series of scans were taken using different masks.



Dynamic Focus
Finally, to display the effect of dynamic focus it is turned on and off for two scans.