Edexcel GCSE Physics · 1PH0
Specification 6.12 · Paper 1
Revise: Background Radiation DefinitionTake several readings over equal time intervals and calculate their mean to obtain a more representative background count rate.
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GCSE Physics · key term
The count rate measured without the radioactive source being investigated; it is the detector's reading due to background radiation.
Used by Edexcel
Specification 6.12 · Paper 1
Revise: Background Radiation DefinitionTake several readings over equal time intervals and calculate their mean to obtain a more representative background count rate.
If asked how to determine the background count rate, name the Geiger–Müller tube, remove radioactive sources from its vicinity and record the count over a stated time.
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