= Walther Bothe
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{tag=Physicist}
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<Walther Bothe> developed the <coincidence counting> for connecting signals from separate <particle detectors>. Requiring pulses within a short time window helps distinguish a common physical event from unrelated counts. For independent rates $r_1$ and $r_2$, accidental coincidences scale with $r_1r_2$ and the window duration; narrowing that duration therefore reduces a calculable background. The method turns timing information into evidence about particle paths and correlated processes, rather than relying on the count in one detector alone.<The Coincidence Method by Walther Bothe>[Authored 1954 award lecture, printed pp. 271–275; accidental-rate scaling explained here]{ref}
A <physicist>.https://www.mpg.de/957380/10_person3-1954[Independent professional biography and identity]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Bothe.jpg?width=250]
{title=Portrait of <Walther Bothe>}
{description=Nobel Foundation; individual photographer unidentified. https://commons.wikimedia.org/wiki/File:Bothe.jpg[Commons PD-Sweden photograph claim. File requests an additional United States public-domain tag; worldwide status is not asserted.], via Wikimedia Commons.}
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