Physics · A-Level · AQA · AQA A-level Physics (7408) · Specification point · 3.8.1.2 · Nuclear physics (A-level only) · Radioactivity (A-level only)
3.8.1.2 α, β and γ radiation (A-level only)
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Their properties and experimental identification using simple absorption experiments; applications eg to relative hazards of exposure to humans. Applications also include thickness measurements of aluminium foil paper and steel. Inverse-square law for radiation: |
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Experimental verification of inverse-square law.
Applications eg to safe handling of radioactive sources.
Background radiation; examples of its origins and experimental elimination from calculations.
Appreciation of balance between risk and benefits in the uses of radiation in medicine.
Required practical 12: Investigation of the inverse-square law for gamma radiation. |