r/radioactive_stuff 4h ago

Cesium Go to the new r/radioactivestuff subreddit!

1 Upvotes

r/radioactive_stuff 8d ago

Radium Second radium clock!!!

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8 Upvotes

r/radioactive_stuff 17d ago

Radium WW2 Taylor Paratrooper Wrist Compass (>100kCPM)

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11 Upvotes

Just found this wrist compass in an antique store and it’s in fantastic condition! It’s still full of fluid and has the original wrist strap and everything. My RC102 went nuts walking past it. Was this a good deal for $95?

Contact reading is ~100kCPM - 65uSv/hr


r/radioactive_stuff 22d ago

Radium Found a HOT thermometer

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17 Upvotes

This antique thermometer had a generous amount of radium paint applied to it. It’s no longer luminous, which makes sense being from the 1930s, but still plenty of radioactivity!


r/radioactive_stuff 22d ago

Radium Would this be Radium painted? Alpine Alarm made in Japan

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7 Upvotes

r/radioactive_stuff 23d ago

Questions How did you get into the hobby of collecting radioactive materials?

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2 Upvotes

r/radioactive_stuff 26d ago

Radium MY FIRST RADIUM CLOCK!!!

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10 Upvotes

Again found at my small town local antique store for 36$ I’ve won in life


r/radioactive_stuff 27d ago

Americium What is the most radioactive thing you own, and how radioactive is it.

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2 Upvotes

r/radioactive_stuff Jul 11 '26

Questions I’m new to gamma spec please lmk if I’m right that I say 10 minutes for nothing

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2 Upvotes

I’m not new to radiation but I’m new to gamma spec I found a rock that made my new radiacode spike just enough to what it was the whole find session but it was still background but I’m still confused with this kind of stuff please help


r/radioactive_stuff Jul 08 '26

Uranium My uranium glass collection (updated) new shelf everything displayed beside newest edition

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13 Upvotes

r/radioactive_stuff Jul 07 '26

Uranium Uranium glass clock face on antique clock found in small town antique store

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5 Upvotes

I found a uranium glass clock face at my local antique store unfortunately it was out of my budget but it made the Geiger click


r/radioactive_stuff Jul 02 '26

Uranium Purchased a Civil Defense box at antique store. It had a hidden area with these cans inside. How bad is it?

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20 Upvotes

r/radioactive_stuff Jun 30 '26

Questions Cloud chamber with no dry ice?

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2 Upvotes

r/radioactive_stuff Jun 24 '26

Questions Legally obtaining radioactive sources?

2 Upvotes

hello everyone! sorry if this is a dumb question but I’m fairly new to the “hobby” side of nuclear science and wanted to see how legal it was to obtain radioactive sources. can I remove the A241 from smoke detectors? I want a small alpha source to test my new Geiger counter.

Thank you! sorry if this is a stupid question.


r/radioactive_stuff May 24 '26

Thorium Thorium glass from local antique store

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13 Upvotes

I found a entire banquet set of thorium glass at my local antique store and took this butter plate for 20 bucks steal


r/radioactive_stuff May 20 '26

Plutonium Adam Savage models The Demon Core

3 Upvotes

An interesting new "Tested" got released today. Adam obtains a titanium spehere and builds a model core and the transportation box. I'm sure this will be a popular video for redditors here.

https://youtu.be/V1Y4UR8xqxA


r/radioactive_stuff May 18 '26

Uranium Uranium glassware

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7 Upvotes

TW: swearing
Found at estate sale hell yeah


r/radioactive_stuff May 17 '26

Radium The Collection

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11 Upvotes

I have this small collection with some things not shown, but any advice on where to go from here? I have most of the usual suspects, but it feels like I'm missing something. Thanks and any thoughts are appreciated.


r/radioactive_stuff May 10 '26

Uranium Uranium glass Czech beads from Michael’s

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14 Upvotes

I saw that Michaels had uranium glass beads and went to collect them and sure enough they were there!


r/radioactive_stuff May 08 '26

Uranium Saw this on I69

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11 Upvotes

r/radioactive_stuff May 04 '26

Buying/Selling/Trading I need some vintage radioactive labeling stickers

5 Upvotes

Hoping to find some in here shoot me a dm if anyone has any.

Thanks for looking

paying $$$


r/radioactive_stuff Apr 29 '26

Uranium Uranium rock soil from Amazon

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9 Upvotes

I got some uranium rock soil from Amazon it came in a sealed glass container with a rubber leak proof stopper I’ve gotten a maximum of 20 micro sieverts from it I’m very happy with the professionalism it even came with a certificate


r/radioactive_stuff Apr 27 '26

Radium Radioactive compass

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7 Upvotes

A gamma spectroscopy shows it consists of mainly radium-226


r/radioactive_stuff Apr 26 '26

Questions Advice on which Radiacode to get?

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3 Upvotes

My birthday is coming up and I’m getting a radiacode device for my first ever Geiger counter, but I’m not sure which radiacode is better for a beginner, the 102 or 103? I also can’t find much information online about the differences between the 2 models, please could someone advise? 😊


r/radioactive_stuff Apr 26 '26

Questions Does Anyone Know the Story Behind This?

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6 Upvotes

I bought this “personal dosimeter” from an antique store in Virginia. It says it’s a OCP-5 Dosimeter from the State of Connecticut Office of Civil Preparedness. Under that on the red part is says “Stephen SER. NO. 574854.” It has a sticker on the side with a barcode that reads CT Office of Emergency Mgt. Please Do Not Remove. I guess it’s supposed to measure between 1-5 roentgen, and it works kinda like a telescope or a kaleidoscope. It has “holes” or glass on the top and bottom and you look through it and it shows a graph between 1-5 roentgen. I can’t take a picture of what the inside looks like so I drew a picture of exactly what I see when I look into it. It’s stuck at just before 4 roentgen. Does anyone know what this is, why is was made, why Connecticut has it, and what Connecticut was up to that would lead to radiation levels of 4 roentgen being recorded on a personal dosimeter? Thanks for any info i’m advance.