Colin Furze's videos are much worse in the way he shows not using safety gear. At least an X-Ray tube is hard to come by, hard to use and people generally know it's dangerous.
Colin Furze is basically a first world mining operation compared to the "look at how they do <insert thing here> in <insert equatorial country here>" type videos that nobody takes any issue with.
Of Course we should set a good example when it comes to working with dangerous things in our youtube videos. We should use PPE at all times and give clear warnings about the risks throughout the video…
… But Maybe if you’re too stupid to realise that a safety tie isn’t actually protective, then maybe your upcoming appointment with evolution is overdue.
Alternate option - stemming from the OP comment - if we want to get children involved in engineering and science fields, and this kind of cool shit science is how we can easily do it, they absolutely have to assume a portion of their audience won't know what is real and what isn't.
In other words, not everyone is you. Always remember that.
I don’t know what energies you need for medical imaging, but a keV linear electron accelerator is commonly called “a CRT”, and it’s already powerful enough to screw you up if you really try.
(Of course, the power supply, the flyback converter, and all the other stuff you get at immediately upon opening the case are plenty dangerous even without all the effort it takes to get ionizing radiation out of the tube.)