DIY Electron Accelerator - Cathode Ray Tube

I hope you enjoy this project! I had a lot of fun making this video and I am very happy with my new JB Platinum DV-85n vacuum pump.

[YodaWhat]

*There is actually a benefit to the high sputtering rate of the steel wire:* As the steel atoms get deposited on the glass, the vacuum is improved because *gas molecules get buried under and within the metal deposit.* Some of the best vacuum attainable _on Earth_ is created by a variation on this technique.

[RetroHaul]

I think that if ppl are watching this to build one themselves, they dont need to get explained how you wash a bottle 😂

[greamcreedae]

Forget the nay sayers in the comments do your thing kid. The video is awesome and I’m happy to see a lot of people in the comments are doing their own experiments as well because I love science. It makes me happy to see so many people using their minds for science instead of the cultural norm we see on tv. Science is the key to our survival during this pandemic.respect to all you fabulous minds out there.

[anthonyvolkman]

Quite amazing, I constructing a linear accelerator that will be using my superconducting magnets. I am making the digital muon detector as well.

[InnovationBlast]

If you want to make a display, you probably would need a diffusion/turbo molecular pump along with another vessel that can handle ultra high vacuum.

[PhunkBustA]

eucalyptus oil works real good for gettin at labels/stickers ect..

[buddyengineer]

SThis is not a cathode-ray tube at all. You see ionization of air and water vapors. It is because of the ions of the residual gas you see sputtering. To do this experiment properly, you need a diffusion pump. After the tube is evacuated, there will be no glow and no current. You need to heat up your cathode, ideally a tungsten filament, which will result in an electron emission and measurable current. Still no glow will be visible. If the current in high enough, the anode may warm up and start glowing. I did these experiments in a vacuum chamber (JEOL vacuum evaporator).

[greamcreedae]

Good going kid. Your video is awesome. Love the Initiative you took to make it happen. Keep it up my boy.

[jeffwalter]

It would be so cool to visualize a double slit experiment in this; SO COOL

[nikhilnikhil]

Can you elaborate the procedure of this experiment?
Like supply voltage, vacum pressure, the wire used.

[BatMandor]

WHO COULD DISLIKE THIS?! OMFG THIS HUMANITY THEY"LL NEVER LEARN! WHERE CURIOSITY AND PASSION DRIVES PEOPLE WHO LIKE SCIENCE THE ONE WHO DISLIKED IT WELL JUST GO DIE

[matthewargall]

Nicely done! If one attached a light bulb to the circuit, would it light up? Does current still flow through the circuit even though it is not essentially complete, and if so, why? Thanks for posting this, it's awesome!

[TheSqoou]

Save time and be safer by drilling the hole before removing the label and glue. Another good trick is to completely fill the bottle with water by submerging right up to the glass' surface.

[WillBurns]

For future reference, use Lighter Fluid to remove labels. It works amazingly well and quickly.

[supershenron]

Instead of running warm water over the bottle to get to label off put hot water like scolding hot water inside the bottle and let it sit it helps sort of melt the adhesive so that you can just easily peel it off and all the residue comes off with the label

[truths.stranger]

would a spiraling cathode tube create a cathode-magnetic field?

[brettmoore]

Good job, put a coil around the neck of the bottle to squeeze the electrons into a beam.

[Neptunium]

Nice work! i know its not easy..keep it up!

[adamjessen]

Aluminum is a great conductor and so a good choice for the metal used, other than gold, then aluminum then copper, the best conductors of metals.

[OttoNomicus]

Whatever it is, it seems to show the wave function of electrons. Looks like it set up some kind of standing wave. As Spock would say, fascinating.