Spinthariscope


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Spinthariscope: Crookes tube

spinthariscope

[spin′thar·ə‚skōp]
(electronics)
An instrument for viewing the scintillations of alpha particles on a luminescent screen, usually with the aid of a microscope.

Spinthariscope

 

a demonstration instrument for the visual observation of alpha particles. The device has a screen coated with a luminescent substance. When an alpha particle strikes the screen, a faint scintillation is produced that can be observed by the eye. The spinthariscope was the forerunner of the scintillation counter.