| 单词 |
Geiger |
| 释义 |
Geiger|ˈgaɪgə(r)|
Also with lower-case initial.
[The name of Hans Geiger (1882–1945), German physicist.]
Geiger counter [counter n.2 3 b], an instrument for detecting and counting ionizing radiation, used esp. for measuring radioactivity; it consists essentially of a wire anode surrounded by a cylindrical cathode in a chamber containing gas at low pressure. Also Geiger–Müller counter.
1924Sci. Abstr. A. XXVII. 295 (title) The Geiger counter as a sensitive detector of X-radiation. 1926Physical Rev. XXVII. 111 A study of Geiger counting chambers has been made. 1930Ibid. XXXV. 651 (title) Multiple coincidences of Geiger-Müller tube-counters. 1945Electronic Engin. XVII. 612/2 An improved circuit..for reading the rate of pulses from a Geiger-Müller counter. 1951New Biol. X. 34 A single particle or γ-ray passing through a Geiger-Muller counter triggers off an electrical discharge which can be amplified to work an electrical and mechanical relay counter. 1956‘N. Shute’ Beyond Black Stump 1 A number of substances that are trapped in the earth's centre will influence a Geiger counter sufficiently to set it clicking. 1957M. Lowry Let. 4 Apr. (1967) 406 When the last old sourdough has traded in his divining rod and gold sifting pan for a geiger counter.
b. fig.
1957London Mag. June 65 We do not feel inclined to treat political beliefs as geiger counters by which we can measure the significance of events as they occur. 1959Times Lit. Suppl. 24 Apr. 246/5 Dr. Simon runs his Geiger counter over the writings of Bernard Shaw to detect the educationist beneath the playwright and pamphleteer. 1961John o'London's 12 Oct. 423/3 A sadistic gangster story..at times, unless my moral geiger counter deceived me, rather slanted, sympathy-wise, towards the gang. |
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