Sievert chamber
A Sievert chamber is a type of ionization chamber used in radiation dose measurements. It was invented by Professor Rolf Maximilian Sievert in Sweden in the years 1920-40.
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Wikipedia
A Sievert chamber is a type of ionization chamber used in radiation dose measurements. It was invented by Professor Rolf Maximilian Sievert in Sweden in the years 1920-40.