Devices {Geiger counter} can measure inert-gas ionization in 2000-V potential. Ionization causes current cascade. Current is proportional to ionization.
Devices {proportional counter} can measure gas ionization in 1000-V potential. Current is sensitive to voltage change.
Devices {scintillation counter} can measure sodium-iodide, anthracene, or naphthalene fluorescence. Photomultiplier detects visible light.
Radioactivity detection can use tiny bubbles in saturated fluid {bubble chamber}.
Radioactivity detection can use condensation trails in saturated vapor {cloud chamber}.
Radioactivity detection can combine bubble and spark chamber {streamer chamber}.
5-Physics-Matter-Atom-Nucleus-Radioactivity
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Date Modified: 2022.0225