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15 cards from this deck
Random process
Becquerel, Bq
Number of decays recorded by detector per second
Geiger-Muller Tube
Helium nucleus (2 protons, 2 neutrons)
Highly ionising
Weakly penetrating (~5cm of air)
Reduces by 4
Reduces by 2
Electron
Stays the same
Increases by 1
Low ionising
Highly penetrating (few cm of lead)
No charge/mass change; removes excess energy
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