Contents 



1 Radiation in Living Matter: The Physical Proc- 



esses 1 



P. Morrison 



2 Secondary Electrons: Average Energy Loss per 



Ionization 13 



U. Fano 



3 Beams of High-Energy Particles 25 



Robert R. Wilson 



4 Neutrons and Their Special Effects: Recoil 



Effects 40 



A. K. Solomon 



5 General Statements about Chemical Reactions 



Induced by Ionizing Radiation 56 



Robert Livingston 



6 Chemical Reactions in the Gas Phase Connected 



WITH Ionization 70 



Merrill Wallenstein, Austin L. Wahrhaftig, Henry 

 Rosenstock, and Henry Eyring 



7 On the Primary Processes in Radiation Chemistry 



and Biology 97 



Robert L. Platzman 



8 Elementary Chemical Processes in Radiobio- 



logical Reactions 117 



Milton Burton 



9 Influences of Details of Electronic Binding on 



Penetration Phenomena, and the Penetration 

 OF Energetic Charged Particles through 

 Liquid Water 139 



Robert L. Platzman 

 10 Some Aspects of the Biochemical Effects of Ioniz- 

 ing Radiations 177 

 W. M. Dale 



ii^tiV' 



