I made a video in which I tried to replicate this effect. It didn't work. Unrolling tape will definitely create a high potential difference, which will accelera

I made a video in which I tried to replicate this effect. It didn't work. Unrolling tape will definitely create a high potential difference, which will accelerate electrons in a vacuum. For medically relevant levels of x-rays, the potential needs to be 20KV at least, and about 100 microamps at minimum. This is 2 watts. The triboelectric effect is not very efficient, so imagine you have to get 20 watts into the unrolling tape. The adhesive will separate before it will accept this power level. Anyway, I was thinking of revisiting...