BRAINCAKERadioactivity Observations
The ionising effect of radiation can be seen using an ionisation chamber and pico-ammeter. Ions created by the ionising radiation are attracted to the oppositely charged electrode and produce a current proportional to the number of ions discharged at the electrode.
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Key terms in this lesson
- alpha radiation
- Ionising radiation consisting of alpha particles, each made of two protons and two neutrons, emitted from an unstable nucleus.
- beta radiation
- Ionising radiation consisting of high-speed electrons, or positrons, emitted from an unstable nucleus.
More in Radioactivity
- Rutherford's α-Particle Scattering Experiment.
- Rutherford's Interpretation
- Radioactivity
- Geiger Tube
- The nature of α, β and γ Radiation.
- Gamma radiation
- Radioactive Change
- The Dangers of Radioactivity
All 25 lessons in Radioactivity · All OCR A-level Physics topics