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History
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Two high pressure cylindrical ion chambers in an enclosure.
Two high pressure cylindrical ion chambers in an enclosure.
Ionization chamber made by Pierre Curie, c 1895-1900
Ionization chamber made by Pierre Curie, c 1895-1900
Hand-held integral ion chamber survey meter in use
Hand-held integral ion chamber survey meter in use
View of sliding beta shield on integral hand held instrument
View of sliding beta shield on integral hand held instrument
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The generation of discrete Townsend avalanches in a proportional counter.
The generation of discrete Townsend avalanches in a proportional counter.
Visualisation of the spread of Townsend avalanches by means of UV photons
Visualisation of the spread of Townsend avalanches by means of UV photons