How are particle accelerators created from radiowave frequency?

Aren’t you talking about apples and oranges?

A particle accelerator is a physical entity; radio waves are electromagnetic particles/waves/

OK, how are particle acceleraters affected by radiowaves?

Particles race around a circular track (steered by magnets) and get a little electrical kick once per revolution, generated by a radio-frequency electromagnetic field.

@gasman So, how do you test for evidence of a particle accelerator?

Circularly accelerated charged particles emit synchrotron radiation. Is that what you mean?

@gasman Yes, and in your words of wisdom, what is synchrotron radiation and how is it detected?

Well, I don’t know much about synch. radiation, but it’s been detected from far-off astronomical objects and thought to be generated in jets from some black holes. I gather that synch. radiation has certain tell-tale polarization characteristics, but I’m fuzzy on this.