Detecting decay products in rain water

Detecting decay products in rain water
Detecting decay products in rain water


The students test rain water for radioactivity. For this they wet a glass fiber filter with rain water, dry it and record the count rates with the pancake GM counter tube. This shows that we are surrounded by natural radioactivity and can also detect it.

Components of equipment sets

1 559012  8 
Pancake GM counter tube LD
1 46084  4 
Precision metal rail, 25 cm LD
1 6651615  4 
Büchner funnel porcelain, for filters with 55 mm Ø LD
1 559015  4 
Holder for Pancake GM counter LD
1 45930  4 
Plate holder on rod LD
3 46095  4 
Clamp rider LD
1 6610305  4 
Round filter fiber glass, 55 mm Ø, Set of 100 LD
1 686667  4 
Frame and Set of Aluminium slides LD
1 686657  8 
Plastic clamps, span 1.2 cm, set of 3 LD
1 664130  4 
Beaker, Boro 3.3, 250 ml, squat LD
1 666767  8 
Hotplate, 1500 W, 185 mm Ø LD
1 575471  8 
Counter S LD
1 LDS00001  4 
Stopwatch, digital LD
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