708 



TABLE 791.— FISSION PRODUCTS OF LONG HALF-LIFE* 



For reference, see footnote 226, p. 667. 



TABLE 792.— CROSS SECTIONS OF FISSIONABLE NUCLEI FOR NEUTRONS 



(IN UNITS OF 10- 2 ' cm 2 ) * 



* For reference, see footnote 226, p. 667. 



t Most of the scattering of fast neutrons is inelastic scattering, resulting in large energy losses (as 

 much as 90 percent). t The resonance peak for U 238 occurs at approximately 5 ev and is taken to 



have an effective width of 0.16. 



SMITHSONIAN PHYSICAL TABLES 



