美国同位素生产和应用.pdf

19 2 Vol.19 No. 2 2006 5 Journal of Isotopes ay 2006 贺佑丰 ( , 102413) : , , , : ; ; : T L92. 1 : A :2006) 020010705 Production and Application of Isotopes in USA HE Youfeng ( Ch ina I nst it ute of A to mic E ner gy , B eij ing 102413, Ch ina) Abstract: Isotopes, including both radioactive and stable isotopes, make important contri butions to development of society and economy, and progress of science and technology in USA. ain Institutions, facilities and capacities of isotope production in the Unite States are described respectively, andthe future demand of isotopes as well as how it can bemet is also introduced briefly. Key words: radioisotope; stable isotope; nuclear medicine , , , , , 3 307 ,400; [3] 600 1956 ,,, ,20 , 44 , ; , [4] ,80% , ~ 90% , G. T. Seaborg H. N. Jr Wag W. F.Libby 14 , ner 1896~ 1995 1960 ; . Calvin [ 1,2] , : : : ( 1939~ ) , ( ) , ,, 108 19 , 1961 ; K. Bloch F. Lynen , X CT , 1964 ; 1969 A. Hershey 1 , , , DNA, DNA R. S. Y