#RADIUM USES PORTABLE#
My friend opened the instrument in order to clean it and when he used the counter again to detect radiation, to his surprise, he heard multiple frequent clicks, meaning that the portable device was next to “something” emitting either radioactive particles or rays. The tube amplifies this conduction and outputs a current pulse, which is heard as a “click” if you hear a click every now and then, you should not worry but if clicks become frequent it means you are near a radioactive source). He neared the counter to the glass of the instrument and got no audible tone ( the Geiger counter has a gas-filled tube that conducts electricity when a particle or photon of radiation makes the gas conductive. His Geiger counter is able to detect alpha and bravo particles, and gamma rays. This friend has also a small Geiger counter that he uses to inspect all the items he receives from abroad because he was taught nuclear physics at school. Here’s the reason why.Ī friend of mine, who’s keen on aviation, recently bought on eBay an old ADI (Attitude Indicator). However, former pilots and current airliners crew and frequent flyers could find something interesting in this article.
This post is addressed to the many visitors of this site who repair, restore or simply collect old instruments like altimeters, turn and slip indicator, compasses, etc.
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