Can Phonons and/or Thz+ Acoustic FX cause Ionizing Radiation?

[shintashi]

For example: https://www.laserfocusworld.com/tes...stic-laserthat-produces-terahertz-sound-waves

Can these devices produce ionizing radiation?

I understand ultrasound traditionally does not produce ionizing radiation, but I am curious about terahertz frequencies, phonons, and beams and wonder if those devices do.

 

[mfb]

The energy per phonon is way too low for that.

 

[sophiecentaur]

Typical maximum frequencies for phonons are 10 to 30 THz. Optical frequencies are hundreds of THz (I have heard of optical phonons) but ionizing energies would be ionizing the atoms in a lattice and not propagate vibrations. So no phonons.