Particle camera - logo of the detector

Easily available sources

There are still a lot of people who do not realize, that radioactivity and ionizing particles have always been around – coming from the ground or space. For demonstrating everyday radiation with our MX-10 you can just let it run and wait until you catch particles from natural background radiation. Or if you get lucky, you will catch a muon from cosmic rays.

Although this demonstration is also useful, busy teachers need something faster to show – and there are a few options to start with, available to the public:

  • Glassware, tableware, jewellery and ceramic tiles incorporating uranium (a uranium glass sample is a part of our Edukit set)
  • thoriated tungsten welding electrodes (part of our Edukit set)
  • thoriated incandescent gas mantles for gas lamps
  • radioluminous paints
  • potassium chloride - KCl (contains 0.012% of the natural radioactive isotope K40)
  • The last example is even more simple: just take some cloth or a few layers of toilet paper, put it on the tube of the vacuum cleaner as a sort of makeshift filter, let the cleaner run for some time and then place the „filter“ carefully over the chip area – usually you will catch more alpha particles as you imitate the procedure to measure radon in the air
Compact preview Pixelman 

Image of natural background in JABLOTRON office, 30 minutes (our company is located in a granite region with relatively higher natural background, mostly radon-based)