A Geiger-Muller counter, commonly abbreviated as a Geiger counter, is a device used to measure the level of radiation. It is a particle detector that shows if an area or an object emits ionizing radiation. The main part of a Geiger counter is the inner tube, filled with gas and with a certain amount of applied voltage. To determine if there is a nearby source of radioactivity and the exact level of radiation from it, a calibrated Geiger counter is needed. It is recommended that a Geiger counter is calibrated every year.
1 Turn on the Geiger counter to start the calibration process. Note that it is not the Geiger-Muller tube inside the meter that needs calibration, but the circuits around it.
2 Find and prepare a source whose level of radioactivity is to be measured. This source has to be a material for which the exact level of radioactivity is known.
3 Place the Geiger counter near the source, making sure that the Geiger-Müller tube faces the material directly. This counterposition will ensure that the material passes through the thin window and ionizes the gas inside.
4 Read the result of the measurement on the Geiger counter. These devices have a common needle gauge to get the exact number, but they also have light and a clicking sound that indicates the existence of the LED radiation flashing.
5 Compare the reading was taken from the Geiger counter with the number of the known source. If they match, the Geiger counter is already calibrated. If they do not, you will have to adjust the Geiger counter.
6 Counter adjustment circuit until reaching the exact reading of the known source. Now the Geiger counter is calibrated and ready to make accurate and accurate readings.
Tips and warnings
- Check the Geiger counter battery, as well, since the low battery could also be a reason for inaccurate readings.
- If you are not sure how to perform this task, contact the local civil defense service or another institution in your area that has a Geiger counter calibration service.
A Geiger-Müller counter that commonly shortens Geiger counters is a device for measuring the level of radiation. It is a particle detector that shows whether an area or an object is emitted by ionizing radiation. The main part of a Geiger counter is the tube inside filled with gas and with a certain tension. To determine if there is a source of radioactivity nearby and the exact amount of radiation from it, you will need a calibrated Geiger counter. It is recommended that a Geiger counter should be calibrated annually.