Answer :
As current flows through a typical gas-filled detector, like a Geiger counter, it will register counts that indicate the presence and relative intensity of ionizing radiation, creating a current from free ion pairs caused by the radiation.
As current flows through a typical gas-filled detector circuit, such as a Geiger counter or gaseous ionization detector, a measuring device will record the presence of ionizing radiation. These detectors are filled with an insulating gas, and when ionizing radiation passes through, it produces free ion pairs. These ions then create a measurable current flow. In the case of a Geiger counter, this current is detected as a count, which generates an audible clicking or buzzing sound, indicating the detection of radiation. The count provides information on the existence and relative intensity of ionizing radiation but does not offer data on the energy, charge, or type of radiation. Due to the nature of gas detectors, there is a limitation in their sensitivity, as they cannot detect every particle; some may pass through without causing sufficient ionization.