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Australians scour desert for dangerous radioactive capsule smaller than a penny

nytimes.com

161–170 of 357 posts

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#161

Really scary. For those unaware of how badly this kind of situation can end up, read about the horrific Goiânia incident in Brazil. https://en.m.wikipedia.org/wiki/Goi%C3%A2nia_accident

At least Western Australia is incredibly underpopulated and remote.

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#163
post #124

Adafruit sells a geiger counter kit. It's been on my list of things to tinker with for scanning living and work environments for potential hazards. Just for fun. I'm curious if anyone here has ever found high levels of radiation while playing around with geiger counters? https://www.adafruit.com/product/483

I have had an old Geiger counter in my office for a number of years my dad gave me he got in a crate of junk he purchased. Best I can tell it doesn't work, I've tried bananas and the like. I've always had a mild fear that the thing itself might be radioactive.

People are more radioactive than bananas [1], so that's probably not too surprising. DrAwdeOccarim's sibling comment to yours mentions you can buy rocks to test with.

[1] https://www.sciencefocus.com/science/how-many-bananas-would-...

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#164
post #56

This is mostly a data analysis job. If the capsule is on or very near the road, a single trip from start to finish with a NaI(Tl) or CsI scintillation counter will find it. Every CBRN team in the world has these, so they have obviously completed the first run at this without finding it. The capsule is not on or near the road. Australia is famous for road trains on the Great Northen Highway. They travel fast and heavy…

>If the capsule is on or very near the road, a single trip from start to finish with a NaI(Tl) or CsI scintillation counter will find it. Every CBRN team in the world has these, so they have obviously completed the first run at this without finding it. The capsule is not on or near the road.

It was reported in the national news within 12 hours of being found lost, so I don't think they had done that yet, especially given the distance.

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#165
post #120

Earlier quoted context omitted.

The equipment to detect high levels of radiation is very cheap. Likewise the equipment to detect lead... And hundreds of other deadly pollutants. Part of owning a house should involve getting it tested, perhaps once per 10 years, for all these contaminants. They might have been put in during construction - or it might be arsenic in the wood of your bed... Or a mixing mistake while making the plastic for your toothbru…

Are there testing services you’ve used before or would recommend to perform the testing? There does not seem to be a major brand or service provider offering this. Thank you!

[deleted]

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#166
post #35

Australia: the country where not only the wildlife but even the gravel on the road is out to kill you!

Best reply on this thread. Everything in Australia kills you or at least causes horrible pain. Even that cute platypus or that harmless-looking shell on the beach. And now this.

Fortunately, over 85% of us live in the cities, due to much of the rest of the country where most of the dangerous shit is being mostly uninhabitable anyway. The further south you live the safer you are generally speaking. Where I live (far south) the most dangerous creature you're going to run into in the city is probably a redback spider, which is related to a black widow, and there hasn't been a confirmed death from one of those in over 40 years. Or a brown snake, but I don't think I've even seen one in the wild, although I know an area close by where they are reported to live.

This capsule has been lost in one of the most remote, uninhabitated parts of the country.

The dangers of living in Australia are vastly overblown ...

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#167
Radiation detection is my specialty. This source is Cs-137, few hundred mCi. It's easy to detect within a few seconds at distances of a few tens of meters or more with professional detection equipment if there is direct line of sight.

If it was knocked off the road, though, the question will be if it fell into a crack or other such place because then the radiation is somewhat shielded and it would take much more measuring time to identify it.

I suspect if a few passes with vehicle-mounted detectors don't find it then some drones with detectors traveling along the sides of the road would be a good next step. If a critter moved it or ate it then it's probably gone forever. At a distance of 1 meter the dose rate from that source is already not extremely hazardous unless a person were exposed for an extended period of time (like a full day or two). Getting closer, like putting it directly against your torso, would mean serious health effects in a matter of minutes.

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#168

Earlier quoted context omitted.

Best reply on this thread. Everything in Australia kills you or at least causes horrible pain. Even that cute platypus or that harmless-looking shell on the beach. And now this.

No moose, bears, wolves, cougars, or other alpha predators in Australia though. About the worst are wild dogs / dingos, though they typically won't be a problem unless they're in a pack. I'll take Australian dangers over North American every day of the week.

Hello, Australian here.

Yes, for 85% of the country, risk is small.

Crocodiles are the only major danger, and they're isolated to the far north of the country.

But they are truly terrifying, in that they are silent and invisible in the water, intelligent, and capable of watching a human for days to learn their routine and plan an ambush.

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#169

Earlier quoted context omitted.

The equipment to detect high levels of radiation is very cheap. Likewise the equipment to detect lead... And hundreds of other deadly pollutants. Part of owning a house should involve getting it tested, perhaps once per 10 years, for all these contaminants. They might have been put in during construction - or it might be arsenic in the wood of your bed... Or a mixing mistake while making the plastic for your toothbru…

Most Americans would still choose not to do this because any knowledge of a positive lead test means that you need to report it when you sell your house which might effect resale value. The large majority (>90%) of houses built before 1940 have lead paint in them somewhere and lead paint wasn't banned until 1970 in the US so many older houses still have lead paint somewhere

Presumably if you care about testing for lead, you'd also care enough to have it dealt with while you are living there.

Re: Australians scour desert for dangerous radioactive capsule smaller than a penny

#170

Here's what gauge sources like this look like.[1] Here are some packed for shipping. bolted to a crate, as described in the NY Times article.[2] The locks are $8 Master Lock combination padlocks, probably just to keep people from opening the things by accident. The lock looks optional on the model in [2]. The lock is on the shutter end, anyway. The cover plate that gives access to the source for replacement is secure…

Wow, I thought maybe these devices were available only through some kind of secure government channel, but nope, “Add to cart” right there.

I guess at least they have this footnote: “Note: Users must be licensed to possess them before they can be purchased.”

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