Lauritsen electroscope

noun
Lau·rit·sen electroscope | \ˈlau̇|rə̇tsən-, ˈlȯ|, ˈlä|\

Definition of Lauritsen electroscope 

: an electroscope in which the sensitive element is a quartz fiber used in precise measurements of ionizing radiation

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History and Etymology for Lauritsen electroscope

after Charles C. Lauritsen †1968 and Thomas Lauritsen, born 1915 American physicists born in Denmark, who designed it

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