TABLE 743.— RELATIVE STOPPING POWER OF SELECTED SUBSTANCES 



FOR a-PARTICLES 234 



Relative 

 stopping 

 Substance power 



air 1 



O, 1.07 



H 2 21 



He 17 



Al 



Range in Relative Range in 



substance stopping substance 



Range in air Substance power Range in air 



1 Ne 62 1.61 



.93 A 98 1.02 



4.77 Kr 1.52 .66 



5.88 Xe 1.98 .50 



1700.00 5.8510- 4 



234 Rasetti, Franco, Elements of nuclear physics. Copyright 1936 by Prentice-Hall, Inc., New York. 

 SMITHSONIAN PHYSICAL TABLES 



