Various useful things on Ali/eBay/whatever

[Like Ra]

Another tool I bought today: BR-9C 2-In-1 Handheld Portable Digital Display Electromagnetic Radiation Nuclear Radiation Detector Geiger Counter. As always, checked various reviews first. This one can be modified to increase the sensitivity.

[Like Ra]

What was wrong with the BR-9c ?

[Like Ra]

What was wrong with the BR-9c ?

It does not sense alpha (and barely registers beta). That's the most important. Also it's not that sensitive even with SBM-20 tubes, and slow. RadiaScans 701/801 have BETA-1 mica tubes. Radex RD1008 (with BETA-2) is also an alternative. Checking reviews...

Ok, when you get one, let me know if it’s worth the cost.

[Like Ra]

Maybe it’s well shielded. But even so, you should get some kind of reading.

Just a note here, I dug out my old Nam issue chemical alarm from storage. Going to power it up this weekend.
No, I do not think this virus will trigger this alarm. This is a chemical alarm. Not a Bio alarm.

[Like Ra]

Maybe it’s well shielded. But even so, you should get some kind of reading.

What do you mean?

Ok, maybe I’m off a bit. You said that y was not as strong. Just 4 times above strong. Did you mean that y should be a lot less ?

[Like Ra]

Just remeasured, γ it's actually 10-15 time higher, than the norm.

Did you mean that y should be a lot less ?

I mean, there should not be any radioactivity at all. There are no radioactive minerals listed in the locality, where my stones were found. However, there are some small crystals of a black/metallic highly radioactive mineral. And I'm very curious what it is.

Also, all apatites from Madagascar are radioactive, because of alluvial thorinite. (γ is 4 times higher).

So, having a radiometer with a good alpha, beta, gamma detector is a must.