How far do the electrons and photons
emitted in radioactive decay penetrate through matter? This experiment uses a
Geiger counter to measure the attenuation of b and g-rays emitted from
radioactive sources as they pass through various thicknesses of materials.
The picture above shows the high-voltage
supply, the Geiger-Mueller tube plus other tools to determine the
thickness and density of the materials tested.
This is a pill box shaped Geiger-Mueller
tube. For a differently shaped Geiger-Mueller tube click
here.
