11–20 of 21 posts
I'm actually reverse engineering this and similar cheap sensors as part of creating an iOS app... I'm significantly motivated by how utterly pathetic their companion apps are.
Checking food with a gamma radiation detector is not too useful. [1][2] Some "preppers" are into this, and get excited if they count for an hour and get 20% higher than usual. They're probably seeing ordinary variation in background radiation, which varies over the course of a day. A tester called LANFOS has been developed in Japan, to deal with possibly-contaminated food from Fukishima. It's a round pot-like device…
Checking food with a gamma radiation detector is not too useful. [1][2] Some "preppers" are into this, and get excited if they count for an hour and get 20% higher than usual. They're probably seeing ordinary variation in background radiation, which varies over the course of a day. A tester called LANFOS has been developed in Japan, to deal with possibly-contaminated food from Fukishima. It's a round pot-like device…
Note also the Banana Equivalent Dose https://en.wikipedia.org/wiki/Banana_equivalent_dose and the related observation by Edward Teller that due to the potassium-40 in people, sleeping with two others gave roughly the same dose rate as being on site at Three Mile Island (latter from memory)....
The marketing material says semiconductor sensor, which is a little vague.
Any guesses on what the sensor is in this device? The marketing material says semiconductor sensor, which is a little vague.
https://www.maximintegrated.com/en/app-notes/index.mvp/id/22...
I'd love to use this as an rng.
Earlier quoted context omitted.
Note also the Banana Equivalent Dose https://en.wikipedia.org/wiki/Banana_equivalent_dose and the related observation by Edward Teller that due to the potassium-40 in people, sleeping with two others gave roughly the same dose rate as being on site at Three Mile Island (latter from memory)....
I'm now interested in hearing about typical sleeping arrangements in Mr Teller's day.
I'd love to use this as an rng.
If you're looking for some fun, you can reverse bias a zener diode and measure the noise that comes out of it. It's shot noise, and you can measure it quite easily with just some simple passives and an ADC.
I'll give it a try.