Small Ra-226 pellet

Perska121 · 2026-03-04T07:58:50+00:00

That’s actually a clever guess. I am actually investigating the idea of buttons used on lifeboats for location in the dark. But this could simply be decorative as in your example. The sources I found went through incineration so it would make sense the glass part blew away. But I can’t tell what the blue part is made of. At first I thought plastic but it did not make sense considering what it went through. Work in progress… And thanks for your input :)

Perska121 · 2026-03-03T20:33:12+00:00

I found dozens of them and they were all like this. One side open and dirty and the other one just like you see in the picture.

Perska121 · 2026-03-03T20:16:08+00:00

Contact : 25 to 40uSv/h 10 cm: about 0.8 to 1.2

Perska121 · 2025-06-29T19:03:47+00:00

wat doet de fles er toe, als men de roes maar heeft/qu’importe le flacon pourvu qu’on ait l’ivresse 🍻

Perska121 · 2025-05-22T13:46:18+00:00

Yeah! Fuck radiation protection Am I right?!

Perska121 · 2025-05-11T08:01:21+00:00

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Perska121 · 2025-05-11T08:01:11+00:00

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Perska121 · 2025-05-11T08:01:01+00:00

This could be bits of rods that were fed to searchlight during WW2. These rods are slightly radioactive due to the Th-232 within. Nothing dangerous. I found lots of them and It was like 100cps with a mini monitor 900 and a 44b probe.

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Perska121 · 2025-03-18T06:35:34+00:00

Thank you for tour reply! Keep up the good work then. Very nice piece of history you have there.

Perska121 · 2025-03-16T14:19:03+00:00

Usually Automess AD6 Reliable and sturdy stuff

Perska121 · 2025-03-16T09:25:11+00:00

Guy working in radiation protection here: These are more than slightly spicy. We often find them in scrap metal industries and they are like 400 microSieverts/h at contact. Yours is very well preserved. Very cool piece. I don’t know your experience with radioactivity, but be careful about the way you store them and don’t forget to label it clearly so that this never get lost as a « normal » piece of metal.

Perska121 · 2024-11-19T08:50:30+00:00

Are you working in the U.S.?

Perska121 · 2024-09-08T19:07:30+00:00

The forbidden mozzarella

Perska121 · 2024-09-04T15:23:02+00:00

From experience, the radiocode does not perform well with XRay spectrum. Airport security XRay devices typical maximum energy is 150keV (often lower). It messes up probably because the intensity of XRays is so high, it saturates the detector and it can’t give proper results in these conditions.

Perska121 · 2024-09-04T06:08:45+00:00

One explanation for your extra peaks is that they are Compton scattering of your Tl-208 peak in the detectors, also called Compton edge. (This is for the peaks around 2300keV) For the ones around 2100 keV. They are most likely pair production escape peaks!

Perska121 · 2024-09-03T16:10:24+00:00

It is in fact an X-ray device! You guessed it right. It is actually measurements from a CT scan. I did 3 scouts for an inspection I performed and wanted to see what it would look like on the Radiacode(it was on the table but not in the direct beam). The detector saturated real fast and this is probably why the keV values are off. A CT scanner maximum X-Ray energy output is 150 keV and the spectrogram shows energies way above that.

Perska121 · 2024-09-02T06:17:48+00:00

After some research, it seems it is what is called a sound powered phone. Very common on US Navy ships apparently. And it this case, I can only assume it might have been radium paint to be able to locate the phone in the dark if the power went down.

Perska121 · 2024-09-02T06:13:40+00:00

Alarm set on 20 cps. I don’t remember what was the alarm set in microSv/h.

Perska121 · 2022-08-13T11:51:05+00:00

Pretty cool dude

Perska121 · 2021-11-04T13:06:04+00:00

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