Study on ‘pulse cavitation peak’ in an ultrasound reverberating field

Pulse ultrasound waves of frequency 823 kHz with pulse widths from 100 μs to 270s and different intensities were used to irradiate 2 mM terephthalic acid solution. The ‘pulse cavitation peak’ was first observed in a reverberating field. The cavitation activity generated by an ultrasound pulse appears to be a maximum with an appropriate choice of pulse width. For an explanation of this discovery, a new mechanism of the ‘pulse cavitation peak’ is advanced, and a corresponding theoretical analysis was completed. This work provided some new material for the study of the relationship between the pulse parameters and cavitation bubble dynamics in a reverberating field.