Radiation from Tritium Keychain Light??

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All correct, except note that the GM tube method of detection is inappropriate and misleading here. Even with a thin mica pancake detector that can see alpha radiation like the kind you're using here, the detection efficiency for low energy few KeV x-rays is spectacularly poor. In fact you need a special kind of scintillation detector to efficiently detect low energy x-rays / gammas like this and if you put one up against the side of one of these light sources it would indeed be screaming.

Muonium

Neat video I was curious about the safety of these.

WCC

Tritium is also one of the most expensive substances on earth, costing a whopping 30, 000 usd per gram. The vial that you have, I believe is 1 milligram. So 1000th of a gram, which equates to 30 usd for that vial. So damn even 1 mg is crazy expensive for that little thing.

legendarypillow

4 times background is pretty much nothing.
Airplanes on maximum height(10km) have around 100x background

rubikfan

The problem is people carry these in their pocket, which is very nearly direct skin contact. Instead of a few inches away, you should have put the detector directly touching the vial, as it would be if carried in pocket on a keychain.

I've done this with my pancake detector and let's just say, I do not care to carry tritium keychain lights in my pocket.

TMS

How hard would it be to get enough tritium, say, to fill up a phosphorescent balloon? How hard would it be to get the coating for it? I've been thinking about it for a while now, but I have never seen it done, even on YouTube.

joepeters

Hydrogen-3 (Tritium) doesn't emit gamma ray energies or characteristic X-ray energies when it decays to Helium-3. Only very soft beta particles with an endpoint energy of 18.6 keV @ 100% intensity. Bremsstrahlung (secondary/braking X-radiation) is the only thing that is detectable from H-3 decay. Also, the only thing that differentiates X-rays from gamma rays are their origin: X-rays are emitted from the orbital electrons–gamma rays are emitted from the nucleus.

KarbineKyle

No worries because they're not beta particles, just X-rays and Gamma rays. 👍

Simonjose

Man! Thank you. I have a video on my channel where I have a Geiger counter on my tritium pendant and it lights up. I wear it but I wear it nervously. You are the only person that has explained why it is hot. Everyone tells me the counter should not pick ip tritium emissions

giantfatberg

I wonder. What if you put 100 in a flashlight shell.

rubikfan

serious question
can tritium be crushed to powder like ceramic?
if it does will it still glow?

julianruiz

Thank you for your video. I wear a titanium jewellery item with 6 Trigalight Tritium vials, around my neck, which are not covered by glass. My Mira dosimeter doesn't seem to be picking up much radiation. I am really curious about two things:
1. Am I about to die horribly from chest cancer because I wear a necklace full of tritium vials.
2. Am I about to turn into a super hero because I am mutated by wearing tritium vials.
Let me down gently.

TheWtfnonamez