| Electronics > Projects, Designs, and Technical Stuff |
| X-Ray Machine Construction (project finished) |
| << < (7/8) > >> |
| mikeselectricstuff:
--- Quote from: Neukyhm on November 29, 2018, 12:15:49 pm --- Yes, the camera is placed in front of the screen. As far as I know, that's harmless to the camera. And yes, the camera captures a bit of noise but it's almost nothing. Maybe your x-ray source works at higher voltage too (mine works at around 65kV). --- End quote --- You could use a mirror to avoid the noise and possible damage |
| Treehouseman:
--- Quote from: mikeselectricstuff on November 29, 2018, 04:54:28 pm --- --- Quote from: Neukyhm on November 29, 2018, 12:15:49 pm --- Yes, the camera is placed in front of the screen. As far as I know, that's harmless to the camera. And yes, the camera captures a bit of noise but it's almost nothing. Maybe your x-ray source works at higher voltage too (mine works at around 65kV). --- End quote --- You could use a mirror to avoid the noise and possible damage --- End quote --- That's what I've been doing but the problem is how difficult it is to set it up and keep it all in focus and aligned. I have a rednecked stup just along the bathroom counter, it's only assembled when it's in use, having to setup the mirror makes it all more difficult but it's what I've had to put up with. The idealistic goal would of course be a DR panel like you tore down a while back, but they're extremely expensive. Alternatively a dental sensor is an option, really nice dpi but tiny sensor. https://makezine.com/2015/08/11/homemade-x-ray-inspector-reveals-pcb-secrets/ That is a really nice setup for what it is but that is quite an undertaking to build, as well as dental sensors in full working condition still cost a few hundred. What I've really been looking for is some leaded glass, a nice leaded transparent window that can be used inline with the camera. The ones I can find are stupid expensive or just lack a price because it's "if you have to ask you can't afford it". I've currently been watching the thrift stores looking for "lead crystal", I believe it should realistically be the same thing, but I'd have to do some diy glass work to turn a cup into a pane. and they'll probably be less leaded but it's something. I already know I have some vacuum tubes that are lead shielded (like HV regulators for flybacks), as well as crt's often have it in some form but they have coatings that can be difficult to work with but it has been suggested to try to sand down a crt and see how it looks. Right now I have most of my stuff up at https://id10t-tech.com/2018/11/20/x-ray/. |
| Neukyhm:
--- Quote from: Treehouseman on November 29, 2018, 05:07:01 pm ---dental sensors in full working condition still cost a few hundred. --- End quote --- You mean a few thousands :-DD You have some good pictures there, nice definition :-+ |
| Treehouseman:
There's definitely more noise on the image but I'm actually really surprised at how little the increase was, looks like there's a lot more quality with the mirror out of the equation, the distortion seems near nothing and I can get the laser on the flash to focus the lens and stop trying to hold things against the sheet to manually focus on! Now to just think of more stuff to xray. |
| Neukyhm:
--- Quote from: Treehouseman on November 29, 2018, 06:02:04 pm --- I can get the laser on the flash to focus the lens and stop trying to hold things against the sheet to manually focus on! --- End quote --- That's exactly what I do too, I use the laser grid to autofocus the camera to the surface of the screen. Idk what type of material your camera is constructed, but think that mounting it in front of the machine will make the x-rays go through all the lenses of the camera. Maybe mounting the camera next to the machine allowed the x-rays to hit the sensor more intensively (because this way the rays won't go through the glass of the lenses). |
| Navigation |
| Message Index |
| Next page |
| Previous page |