
A spinthariscope is a device for observing individual nuclear disintegrations caused by the interaction of ionizing radiation with a phosphor (see radioluminescence) or scintillator. ==Invention== The spinthariscope was invented by William Crookes in 1903. While observing the apparently uniform fluorescence on a zinc sulfide screen created by the ...
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instrument for visually detecting alpha particles
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• (n.) A small instrument containing a minute particle of a radium compound mounted in front of a fluorescent screen and viewed with magnifying lenses. The tiny flashes produced by the continual bombardment of the screen by the / rays are thus rendered visible.
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Synonym: scintillation counter. ... Origin: G. Spinther, spark, + skopeo, to view ... (05 Mar 2000) ...
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Spin·thar'i·scope noun [ Greek
spinqari`s spark +
-scope .] A small instrument containing a minute particle of a radium compound mounted in front of a fluorescent screen and viewed with magnifying lenses. The tiny flashes produced by the continual bombardment of the screen by the ...
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Type: Term Pronunciation: spin-thar′i-skōp Synonyms: scintillation counter
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The spinthariscope was an instrument contrived by William Crookes in 1903 to show the luminous effects due to radium. It consisted of a short brass tube closed at one end by a convex lens, and at the other by a zinc sulphide screen, with a small piece of radium salt placed close in front of it. Am observer looking at the screen through the lens, sa...
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