Step 2:

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Make a hole in the bottom of the aluminum can, and then use the can opener to remove her top.
Connect the electronics components of the way I explain in this scheme.
use aluminum foil to cover the open side of the can.

Step 3:

Connect the multimeter in DC voltage meter and place the radioactive material in front of pael aluminum. It only detects large amounts of ionizing radiation (not measure the radiation serves pair of your hand).
To test it use americium from smoke detctores, blankets lamp, luminescent hands containing radium.
if there is intense radiation it only shows the battery voltage, but if there is a source of much radiation it shows much higher voltages than the battery.

Step 4:

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You can use it to alert you of a nearby nuclear attack or radioactive contamination.
If you want to also use one of those other projects that are more accurate, but more complex.
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bahi1 year ago
Interesting concept. Different approach to radioactive detection.
eistein (author) 1 year ago
thanks for the suggestion, I'll take a look at your project
good. my advice is:
1. replace the aluminum can with something that will NOT block alpha radiation
2. use a higher voltage power source, instructions for a simple one can be found on my electric shocker instructable which if used correctly will be adequate for providing 300-400 volts to the chamber so it is more sensitive.