Uploaded February 2021 | Updated September 2026, 3 weeks ago

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A continuation video from the last one on photo multiplier tubes. This one looks at a semiconductor alpha particle detector and a Russian ‘pancake’ Geiger-Muller detector.
A link to the very useful pulse recorder and analyser (PRA) software used to produce sounds and graphs is given below :
gammaspectacular.com/marek/pra/index.html