= Patrick Blackett
{c}
{tag=Physicist}
{title2=1897–1974}
{wiki}
= Patrick Maynard Stuart Blackett
{c}
{synonym}
= P. M. S. Blackett
{c}
{synonym}
<Patrick Blackett> helped turn the <cloud chamber> into a selectively triggered <particle detector>. With <Giuseppe Occhialini>, he used coincident counter signals to operate the chamber when penetrating particles passed. Magnetic curvature and associated tracks then gave more information than a simple particle count, including evidence relevant to <electron>-<Positron> production. The experiment illustrates how triggering can make a slow, detailed recording device useful for rare events.<Some Photographs of the Tracks of Penetrating Radiation by Patrick Maynard Stuart Blackett and Giuseppe Paolo Stanislao Occhialini>[1933, apparatus and interpretation of associated positive/negative tracks]{ref}
A <physicist>.https://www.imperial.ac.uk/about/history/past-people/[Independent professional profile]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Blackett%2CPatrick%201963%20Kopenhagen.jpg?width=240]
{title=Portrait of <Patrick Blackett>}
{description=GFHund; photograph from Friedrich Hund’s estate, prepared for Wikipedia in August 2010. https://creativecommons.org/licenses/by/3.0/[CC BY 3.0], via Wikimedia Commons.}
{source=https://commons.wikimedia.org/wiki/File:Blackett,Patrick_1963_Kopenhagen.jpg}
{width=240}
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