counter tube

1. A measuring instrument for counting individual ionizing events (synset 103122997)
   is a type of: measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
   subtypes:

   • crystal counter - a counter tube in which an ionizing event increases conductivity
   • geiger counter, geiger-muller counter - counter tube that detects ionizing radiations
   • proportional counter, proportional counter tube - counter tube whose output pulse is proportional to number of ions produced
   • scintillation counter - counter tube in which light flashes when exposed to ionizing radiation

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