muon coincidence chamber — free browser tool | fatcousin

two phones stacked · third device monitor · coincidence detection · runs locally

what this is

real particle detectors use coincidence — two sensors that must both trigger simultaneously. random noise does not trigger two sensors at once. a muon does. this tool does what every serious particle detector does. it just uses two phones and a browser.

phone a generates a room code, phone b joins, an optional monitor (laptop or tablet) attaches as a read-only display. all calibration and detection runs peer-to-peer over webrtc. nothing is uploaded.

select role

phone b · cliententer phone a's b-codethe second sensor — its events stream to phone a in real time. phone a shows a large B-CODE on its screen.

monitorenter phone a's m-coderead-only readout for a laptop or tablet. phone a shows a smaller M-CODE below the B-CODE. different from the b-code.

the b-code and m-code are different — phone a generates one for each. the easiest route: phone a uses the “copy link” buttons to send each invite link directly to the right device.