this post was submitted on 09 Feb 2024
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This was an yet another glorious episode from veritasium.
I hope we get well past UVC LEDs. (i.e., shorter wavelengths) UV LEDs are already available. Unfortunately, this progress will stop before X-ray light. With +1 KeV energy, you pretty much must blast off the electrons from the atoms to emit X-rays, which an x-ray tube already does. Or by peeling off a piece of scotch tape.
Maybe making X-ray emitters cheap enough to put in a flashlight isn't the best idea anyway.
Maybe not in a flashlight, but the scientific industry would be very pleased with them. Sterilize water and all surfaces in a second? Flash with 200nm light.
Handheld battery powered X-ray devices exist and are widely available. I used to work with those. In Germany you need a permit to operate them. https://www.thermofisher.com/order/catalog/product/de/en/XL2