What is another word for proportional counter?
Pronunciation: [pɹəpˈɔːʃənə͡l kˈa͡ʊntə] (IPA) 
There are a number of synonyms that can be used in place of the term "proportional counter". Some of these include "gas proportional counter", "ionization chamber", "gas ionization detector", and "gas-filled radiation detector". These terms all refer to a type of radiation detector that uses a gas-filled chamber to measure the ionizing radiation produced by radioactive materials. The gas within the chamber ionizes when it is exposed to radiation and the resulting electrons are collected on electrodes within the chamber to produce a measurable signal. Proportional counters are commonly used in fields such as radiography, nuclear physics, and environmental radiation monitoring.
