I have successfully replicated the experiment in the Comic Watch manual showing change in rates measured as result of radioactive test source (radioactive rock from ebay) on top of detectors in coincidence mode with various amounts of lead between top of top detector and radioactive test source.
Andy
Labelled version then unlabelled version:
CosmicWatch Muon Detector Radioactive Test Source Experiment: Removing test source in order to return to normal configuration 8 May 2026 – following graph gives final results of experiment:
