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1975年,第十五届国际计量大会将放射性活度的国际单位命名为贝克勒尔,简称贝克,符号Bq,以纪念法国物理学家贝克勒尔发现放射性现象。贝克勒尔(Antoine Henri Becquerel,1852～1908)出生于法国。1872年就读巴黎理工大学,后在公路桥梁学校毕业,获工程师职位。1878年在巴黎自然博物馆任物理学教授,1895年任理工大学教授。贝克勒尔是法国科学院院士,擅长于荧光和磷光的研究。由于研究荧光现象而发现铀的放射性,1903年因此获诺贝尔物理学奖。
In 1975, the 15th International Conference of Weighing named the international unit of radioactivity Becquerel, or Baker, symbol Bq, in honor of French physicist Becquerel for the discovery of radioactivity. Antoine Henri Becquerel (1852-1908) was born in France. After studying at the Technische Universität Paris in 1872, he graduated from the School of Highway and Bridge, receiving an engineer position. In 1878 in Paris Museum of Natural Sciences professor of physics, 1895 Polytechnic University professor. Becquerel is a member of the French Academy of Sciences who specializes in fluorescence and phosphorescence. The discovery of the radioactivity of uranium as a result of studying the phenomenon of fluorescence led to the Nobel Prize in Physics in 1903.