… this kid appears to know what he’s doing. He even built a fairly outrageous DC power supply specifically for this project.
… It was smart to use the remote control to keep away from the X-rays! … hence, why he was across the yard … Protip man, build a little lead or steel vault for that thing to protect yourself AND remove background radiation that is noising up your image. Then get yourself a survey meter and make sure you are keeping exposure outside the vault to 5mr/Hr or less.
… Excellent work young man. When I read the title of your video, I thought perhaps you misunderstood the complex nature of the reconstruction algorithm. Turns out I was the one trying to keep up with your explanations and logic.
… I fix CT scanners for a living. This is pretty darn cool!! When you started out, I was trying to figure out how you were going to make all of that rotate around your “patient.” You simply rotated your “patient” itself. Well done!
… While not medical grade, it still demonstrates the working principle and actually extremely useful for imaging internal structures of all sorts of things!
>I fix CT scanners for a living. This is pretty darn cool!! When you started out, I was trying to figure out how you were going to make all of that rotate around your “patient.” You simply rotated your “patient” itself. Well done!
It's worth noting that this is in fact the approach for most industrial CT scanners, which are perfectly capable of punching through perhaps half an inch of steel in my experience (not a CT tech, just an engineer that has used them - there might be more powerful ones out there). It's usually just a small turntable. Conveniently, the object to be imaged usually doesn't care too much about the radiation when it's made of metal.
I was planning to build something similar with a higher budget for a Spellman HVPS, a shielded Oxford Xray tube, and a CMOS flat panel detector.
However, I learned the potential law consequence of irradiating my neighbors if they found out and that the Xray from the planned 1mA, 50kVp system cannot be shielded to an absolutely safe value easily. I decided to put the plan on a indefinite hold.
That sound like a lot fun. Working on similar recently, I've learned the basics are almost trivial with the information and technology that is now widely availablr, and this really demonstrates that.
As long as it works, it works. Interestingly the phone doesn't glitch. I wonder how many x-ray equivalent doses the lighter, the guy and his phone have picked up by now.
This is probably safe if you do it once but I'd definitely not do this regularly.
Precursor videos:
Building an X-Ray power supply, https://youtube.com/watch?v=ppIhQ0ZldZ0
Turning TV parts into an X-ray machine, https://youtube.com/watch?v=LXnK_lMQbYc
Building an X-Ray machine in my backyard, https://youtube.com/watch?v=oxfPK6PlyRY