what is the principle,construction and working of GM counter?
Answers
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Answer:
A counter tube could be a device used for the detection and measurement of radiation. it's mainly used for applications just like the nuclear industry, radiological protection, radiation dosimetry, and experimental physics. it's one in every of the most effective devices for the detection of radiation, within the world.
Explanation:
Principle:
The Principle of the counter tube is that there would be the conduction of the electrical charge on the tube when a particle or photon of incident radiation would turn the gas conductive by the means of ionization.
Construction:
The GM counter consists of a hollow metallic chamber as shown within the figure that acts as a cathode. a skinny wire anode is additionally placed along its axis. The chamber includes a sealed window, through which the radiation enters the chamber. The chamber is crammed with an element at air mass. there's a counter connected to the present system to live the radiation.
Working
The chamber is full of an noble gas (helium, neon, or argon) at low. A high voltage is applied to the present chamber. The metallic chamber will conduct electricity. When radiation enters the chamber through the window, the photons within the radiation will ionize the element inside the chamber. this can make the gas conductive. The electrons produced because of ionization are accelerated because of the potential that we applied and these electrons cause even more ionization. The ionized electrons travel towards the anode. The anode is connected to a counter. The counter counts the electrons reaching the anode. this can be how we measure radiation.
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