I think ionizing radiation caused by ray or particles. My professor told me:"without radioactive substance,with only commercial products,it's possible to produce ionizing radiation."

Can anyone give me some thoughts about the methodology.

  • 2
    $\begingroup$ en.wikipedia.org/wiki/Cathode-ray_tube, en.wikipedia.org/wiki/X-ray_tube $\endgroup$
    – rob
    Jun 14, 2021 at 11:41
  • $\begingroup$ Ultraviolet light with wavelength less than ~120 nm is also ionising radiation. $\endgroup$
    – PM 2Ring
    Jun 14, 2021 at 11:48
  • $\begingroup$ and particle accelerators too $\endgroup$
    – rfl
    Jun 14, 2021 at 12:04
  • $\begingroup$ oh, and cosmic radiation. $\endgroup$
    – rfl
    Jun 14, 2021 at 12:04
  • $\begingroup$ Technically, bananas are commercial products... and yet, they are often considered in popular science as sources of ionizing radiation: see en.wikipedia.org/wiki/Banana_equivalent_dose $\endgroup$
    – Martino
    Jun 26, 2021 at 19:59

1 Answer 1


Ultraviolet light is capable of ionizing a variety of substances; this effect is quite strong and allows UV to be used to disinfect drinking water and kill bacteria as well as giving you a sunburn.


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