spin·thar·i·scope (sp n-th r -sk p )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·scopic (-sk pk) adj. |
spinthariscope [spɪnˈθærɪˌskəʊp]
n
(Physics / 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
[from Greek spintharis a little spark + -scope]
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