Radioactive Cores from Industrial Smoke Detectors
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- Опубліковано 26 лют 2023
- I’ve wanted to test one of the old industrial americium smoke detectors against the radium smoke detector I have to see how it compares. In this video I go over the differences and show how the radioactive sources out of these smoke detectors respond differently to a couple different Geiger counters.
Patreon Thanks:
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(Gamma Radiation Tier)
Brennen Boyer
K Taylor
Don Reyes
Matt Pickering
Nathan McNab
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I spent a large portion of my 45 year career maintaining Pyrotronics systems with those components on a regular basis. I encountered them principally in hospitals and universities. At no time did anyone ever instruct us regarding the nuclear hazard these devices posed to us by just being in proximity to them much less handling the components. Later I found out completely by accident about the extent of the dangers associated with them, and the recommended precautions. We were instructed to disassemble them and clean them with isopropyl alcohol and dry them with high pressure dry nitrogen. When we calibrated them for sensitivity I had no idea that I was throttling the extent of radiation exposure that I was receiving. Early on we were victims of 'mushroom management', (keep them in the dark and feed them poop)!
Would love to see a video of one of these placed in a cloud chamber!
I love this subject and learning about this but I got to say that you have a special level of courage around such sources. Meanwhile my dentist change room when they take pictures of my teeth lol
I worked for Pyrotronics in the late 1970's. These type of detectors were in schools, hospitals and everywhere else because they were pretty much all that was on the market. They were powered by current limited 220vdc . The low voltage low radio material detectors were just becoming widely available and the cost to upgrade an entire system caused many of these systems to remain in service. The systems were mostly based on telephone office style relays and only a few silicon diodes. They could survive a close lightning strike, sometimes turning the NE-51 indicators on the detector base black. Just change the NE-51 and maybe a diode and they were back up. A later model system based on IC's would require new detectors and control panels in a similar strike. The company wide policy for inspecting these systems yearly involved opening the detector and cleaning the chamber and source with a rag dipped in "radiac wash". Then the detector was tested for firing at the proper level and put back in service. Over the years I am sure I cleaned tens of thousands of them. Then in the 1980's they issued a statement saying not to clean any more of them. Imagine that. I am 70 years old now.
20 micro grams would have to be like a speck, like a grain of salt
Whatever you do don’t lick your table
Thanks for taking the L for viewers. That's dedication.
It would be interesting (and borderline inhumane) to do an experiment where you have one of those sitting next to a plant and we just see how it grows.
That radium smoke detector is definitely not something I would feel safe handling nor being nearby 24/7! Forget about inches, I would prefer being many meters away from that thing for the majority of the time and opening the windows from time in order to time to keep radon gas from accumulating! ☢️
That is the sound of Nightmares
As an engineering geologist, I checked the radioactivity on a "Nuc" tester for soil. In the transport case, it pegged my meter. Told the guy using it he needs to have it serviced. He said "he never uses those badges." And so he just continues on until the annual calibration.
Hey Drew, just recently found your channel and gotta say the quality of your videos are top notch, love your enthusiasm and knowledge on radioactivity. I'm a RP Tech and your videos are inspiring me to start my own search for radioactive items and places outside of work.
Drew, really good video! Good, interesting info and I like seeing the inside of the detectors. I appreciate what you do!
OMG I'm just rewatching the video about the smoke detector rn and got the notification for this one!!! :o It's almost scary how perfect the timing is.
I learn so much from you,even when I'm confused,you make it clear,thanks again 😮
Thank you for your videos, your videos bring me new knowledge and surprises every time, love it!
Nice video drew! Glad to see you are still uploading.
Always enjoy your videos man! You definitely make a very good point about people with different occupations that deal with much stronger sources as they are used quite extensively, since we have found so many benefits/ usefulness from utilizing source material. Highly intense sources are definitely common in the construction industry, I agree. An industrial radiographer works with source material far stronger, of course. Thanks to excellent and informative IAEA reports we have seen over the years, there has been quite a few preventable accidents. This is unfortunately followed by ARS, necrosis, amputation, death, etc. All from an extremely small, although highly intense source attached to a pigtail/ cable that gets wound up inside of a shielded case when not in use. It is a form of a camera used to take pictures of welds and such through piping to inspect for cracks, good weld penetration, etc. Just wanted to thank you again for all the awesome content brother! Can't wait for the next one 👍😊
Great video, Drew. Thanks for posting.
wow very interesting. I just came across your channel yesterday and i am learning alot. keep up the hardwork