Definitions
Focused shockwaves
They are defined as an abrupt change in pressure that propagates at a speed greater than that of sound through the medium in which it runs. They are characterized by presenting a wide frequency range (from approximately 150 kHz to 100 MHz), high pressure amplitude (up to 150 MPa) with a short rise time and small pulse width; followed by a low stress wave (up to -25 MPa). It can be generated by generators (electrohydraulic, electromagnetic and piezoelectric)
Radial pressure waves
Sound waves with pressures up to 30 MPa and much longer rise times than focal shock waves of about 3 µs (ballistic generators)