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spinthariscope
spin·thar·i·scope S0644400 (spĭn-thăr′ĭ-skōp′)n. A device for observing individual scintillations produced by ionizing radiation, as one consisting of a tube with a magnifying lens at one end and a phosphorescent screen and speck of radioactive salt at the other.
[Greek spintharis, spark + -scope.]
spin·thar′i·scop′ic (-skŏp′ĭk) adj.spinthariscope (spɪnˈθærɪˌskəʊp) n (General Physics) a device for observing ionizing radiation, consisting of a tube with a magnifying lens at one end and a phosphorescent screen at the other. A particle hitting the screen produces a scintillation[C20: from Greek spintharis a little spark + -scope]Spinthariscope
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. MedicalSeescintillation counter |