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| Homemade X-Ray Machine: Liftoff |
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| PointyOintment:
Those pictures of the fan, with the back side much larger than the front side, show that the beam is very wide. At first I thought that made it more dangerous (to bystanders, neighbours, …), but then realized that that means the beam rapidly gets less intense with distance, which is better for safety. I don't know which effect (more or less dangerous) is more important in this case. Regardless of that, I wouldn't run it when it's aimed in any direction but down into the ground, just to be careful. |
| james_s:
--- Quote from: Treehouseman on November 01, 2018, 05:41:44 am ---I'm going to put in another vote for just getting a dental xray head, they're easy to use and they're a good known level to work with. Though I will also note that the entire "the xray head will filter those soft xrays" thing is a bit inaccurate, I still get hot pixels on my camera when using the xray head even if it's not in the path of the beam. Granted I don't know what exactly he's running at and what his camera settings are, but they do still happen. This isn't to say that running that tube without shielding isn't insanely stupid, but a sheet of aluminum doesn't stop those stray xrays. --- End quote --- High energy xray photons can interfere with the camera too. Also perhaps "attenuate" would be a better word than "stop", the aluminum filter blocks the low energy xrays the way glass blocks UV. It doesn't stop 100% of it but it does greatly reduce the amount that gets through. A dental xray head can still be quite dangerous if one is careless, but it's far safer than an open tube. Whatever the case, where you need to be paranoid is when you have any chance of exposing other people. Few things get people scared to irrational levels like the word "radiation" and if anyone thinks they might have been exposed, even if the level is far too low to cause any harm, you can end up in a lot of trouble. |
| mr_darker:
There's a good guide on making xrays and safety too, on instructables actually, probably the only decent instructable on that site. https://www.instructables.com/id/How-to-X-Ray/ |
| SiliconWizard:
Hopefully your next project is not involving plutonium. :-DD Seriously though, however interesting that may be, experimenting with X-Rays as an amateur is probably best avoided. |
| tggzzz:
--- Quote from: SiliconWizard on November 13, 2018, 07:08:56 pm ---Hopefully your next project is not involving plutonium. :-DD Seriously though, however interesting that may be, experimenting with X-Rays as an amateur is probably best avoided. --- End quote --- As my 1930s book "The Boy Electrician" notes, if your skin turns red you are probably using it too much. |
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