| 释义 |
scintilloscope|sɪnˈtɪləʊskəʊp|
Also scintillascope, scintilliscope.
[f. L. scintill-a spark + -o + -scope.]
An instrument in which alpha rays are detected by the flashes of light which are emitted when they strike a fluorescent screen.
1904Nature 29 Sept. 535 The little instrument, which is called the ‘Scintilloscope’, consists of a simple magnifier of adjustable focus, as in the spinthariscope, but instead of the fixed screen and particle of radio-active substance a small double plate of glass is used. 1906Nature 1 Nov. Advts. p. vii/2 Glew's Scintilloscope..Shows a magnificent display of scintillations, showers of sparks, direct from the mineral Pitchblende, Radium,..Thorium, or any radio-active substance. 1916Yukon Territory (Canada Dept. Interior) 173 The scintilliscope is a much more convenient instrument. 1949New Gould Med. Dict. 912/2 Scintillascope, an instrument for observing minute flashes of light upon a fluorescent screen struck by alpha particles, emitted from a small source of radioactive material. 1951I. L. Idriess Fortunes in Minerals (ed. 2) xxxix. 250 These tiny flashes are known as scintillations, and can be seen through a magnifying glass. This is best done by a simple little instrument called a scintilliscope or spinthariscope. It is merely a small tube, probably of brass. In one end is fitted a glass prism. The outer side of the glass is coated with zinc sulphide powder... At the other end of the tube is fixed an eyepiece, which is a small magnifying glass. |