markomuncho dont you have a microwave you can put it near?
返信 26/06/2017
jramurray The older type of gas lamp mantle can often be obtained and they contain Thorium. They make a good test source.
返信 04/07/2017
jramurray Geiger counters do not respond to microwaves.
返信 04/07/2017
Pete You could try a smoke detector
返信 04/11/2017
RonBeck62 I haven't bought one, because I don't like the specifications. The count rate is very low, and the J305 tube pictured is a cheap one that only detects Gamma and HARD (high energy) beta. That's useful if you want to see how many days you have left after a nuclear war. If you want to check for Radon (alpha and some soft beta) or go prospecting for Uranium, then you will need a different tube.
返信 26/04/2018
Paulhere Another radioactive source easy to get is thoriated tungsten welding rods.
返信 24/05/2018
Lachlan Wood find someone with a radium watch or clock
返信 15/05/2019
BG223734484 collect dust from air by vacum cleaner and measure it
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