ionization chamber

Noun
  1. A measuring instrument that measures the amount of ionizing radiation (synset 103588790)
    is a type of: measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
    subtypes:
    • boron chamber - an ionization chamber lined with boron or filled with boron trifluoride gas for counting low velocity neutrons
    • geiger tube, geiger-muller tube - an ionization chamber contained in a tube in a Geiger counter
    same as: ionization tube

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