Generating X-Rays Using A Magnetron 

Only about twice the power of a dental X-ray, nothing too serious

What do you care?

😂😂 risk assessment 🤣🤣 ..

13uSv/h is nothing to worry about for the durations seen in this video.

How are you sure and approximately how long ago did they switch?

It's got to be over 30 years old, then. The insulator color isn't really a "tell". Alumina & Zirconia sometimes doped with chromium oxides (similar to a ruby) are typically used.

@chuharry5360 If it was built in the 1990s or later, there's no beryllium oxide ceramic.

Anything can emit visible light if you put in the right frequency and voltage, just you’d need 5.4×1014Hz frequency

anything produces visible light with enough voltage

Yeah that'll happen, notice how I electrical taped the cathode end of the tube to prevent this.

@@spectrofreak9988 Maybe you could use it at 60 kV or more if you put it under oil.

Nope, absolutely not

@@inductivelycoupledplasma6207 did you try

No chance of microwaves in the current condition, and the tube impedance would be too low for X-rays if the cathode were heated

Oh don't worry, I've already got one. This application of a magnetron tube isn't practical for generating x-rays, but I figured I'd make a video on it because nobody else seems to have tried this.

Link? Asking for a friend.

Anyone who gets this things be very careful, they put out tremendous amounts of ionizing radiation, you can get nasty burns and overexpose yourself very easy.

It basically is

Yes, I meant to mention that this only works with the magnets removed. Electrons are accelerated in a spiral pattern when the magnets are in place, which allows microwaves to be generated. To produce ONLY X-rays, you remove the magnets so that the electrons are accelerated radially outward from the cathode.

@@spectrofreak9988 thanks for the reply and nice video! I wonder how hard it would be to be able to produce an image with this method of producing x rays.

@@Tsindur Thanks for watching! I think it would be possible to create an image with a *much* higher voltage power supply (eg >100 kV) or with very high-speed x-ray film but otherwise it would be difficult. No observable glow is produced when I put a phosphor screen next to the tube, even with up to 20 seconds exposure time on my camera. The x-ray current is substantial but really not enough for a good image in its current state.

@@spectrofreak9988 Thats unfortunate since I can only afford a 40kv* power supply and your diagram shows that the xrays spread randomly so it would be hard to focus it on one area for an image. I was trying to do this since I have magnetron but also since I am in high school and new to high voltage and trying to do a similar thing could you add me on discord I have some questions

@@Tsindur I don't want to give out my discord on here but you're welcome to email me with any questions at crustychem@gmail.com! I'd love to help out!

The filament seems to heat up on its own while doing this even though both ends of it are connected to ground

@@spectrofreak9988 try a control on the filament to up and down the voltage. I'm sure you'll get much much between results.

If you heat the cathode the magnetron will clamp the voltage to about 4 kV.

@@mernokallat645 why is that?

@chuharry5360Thermionic emission causes the tube to become a vacuum diode: freed electrons will conduct far more current after a certain threshold voltage - the same voltage as the original magnetron, ~4kV.

Correct me. If i am wromg, but he removed the magnets precisely to stop it from producing microwaves and make it prodice x rays instead, the electrons go now in a straight line instead of in a circle and that is why this works, if they were really microwaves the GM wouldn't have detected them. Again, i am not 100% sure of what i am saying, but i have studied the way both x ray tubes and magnetrons work.

Wow, you have completely embarrassed yourself. First of all, it's spelled "magnetron". You don't seem to understand physics very well. I removed the ring magnets specifically to prevent the cyclic electron flow that leads to microwave production at high DC voltages. Had you watched the video you would know that I wasn't trying to produce microwaves. With the ring magnets removed, the electrons are accelerated along a linear path and impact the copper anode block at a near perpendicular angle to the surface, resulting in their kinetic energy being converted into x-rays instead of microwaves like in normal operation. Also I'm running this at a continuous potential of 20,000 volts instead of the normal pulsed 4,000 volts, which is enough potential to generate soft x-rays. Hence why my Geiger counter detected ionization radiation. You need to read up on physics before spewing this kind of absurdity online.

@@ElPsyCongroo. You are 100% correct. I have also studied x-ray tubes and magnetrons as part of my bachelor's degree and anyone who knows about that kind of physics (unlike the guy we're responding to) can recognize why this experiment has nothing to do with microwaves.

i think you don´t get it what the video is about...🤦

What are you talking about? Complete what? This video was ONLY meant to demonstrate that magnetrons can generate x-rays. The flux is too low to use in an x-ray machine so what more do you want to see? You know you could have asked politely for more details instead of being so rude about it.