141 



Rothen technique 

 bovine serum, 7 



Rydberg states 

 in benzene, 95 



Scintillation counters 



change in efficiency with 

 beta and gamma rays, 89 

 high energy- induced lumines- 

 cence, 84 



length of emission of electron- 

 ic radiation, 14 



Secondary electrons 



elastic scattering in water, 51 

 energy degradation and chemi- 

 cal change in water, 51 

 energy transfer to matter, 22 

 induction of atomic oscillation 

 inH z O z , 23 



Self-quenching 



Birks' theory of light conver- 

 sion efficiency, 89 

 Forster's theory, 85 

 resonative energy transfer, 112 



Serine 



breakdown product of ionized 

 dry cystine, 42 



Singlet energy level 

 lifetime, 97 , 98 



Singlet- singlet emission 



quantum efficiency, 89, 90 



Singlet-triplet transition 



external electric or magnetic 

 fields, 98,99 



spin- orbital coupling, 98, 99 

 recombination of radical ions, 

 90, 91 



Spectroscopy 



determination of triplet state 

 of energy, 88, 89 



Spin- orbital coupling 



cause of singlet-triplet trans- 

 ition, 98, 99 



Stearic acid anilid 



excitation of monolayers on wa- 

 ter, 79, 80 



quantum yield for photoysis, 

 79, 80 



Stern-Volmer reaction, 5 



excited molecules and water, 

 67 



Stopping power 



Bethe's Theory, 1 



effects of C, CI, H z , N z , O z , 



11 



effects of chemical bond, 2, 11 



Fermi effect, 2 

 Lindhard and Scharffs 1 theory, 

 2 



low energy protons, 3 

 Neufeld's Theory, 2 



Supersonic radiation 



effects on biologic material, 88 

 significance of supersonic acti- 

 vation, 88 



Surface films 



comparison of effects of irradi- 

 ation on air-water and solid 

 interfaces, 110 



Tautomer 



from molecular excitation, 78 



Temperature 



effects of X ray inactivation of 

 bacteriophage, 46 

 effects on H z O z induction in 

 irradiated ice, 47 

 effects on radiation inactiva- 

 tion of virus, 46 

 effects on radical formation and 

 trapped charges in glyerol, 72 



Thermal constant 



for radiation-induced inactiva- 

 tion of biologic material, 111 



Thermal electrons 

 fate in water, 28 

 radial distribution in water, 54, 

 55 



Thermal energy 



degradation of electronic kine- 

 tic energy, 22 



Thermal motion 



electrons and protons, 55 



Thomas-Fermi model 



for theory of stopping power, 2 



Thymine 



ratio to adenine in DNA, 120 



Townsend Approximation, 10 



Tracers 



location of radical initiator of 

 biologic effect, 108, 109 



Triose phosphate dehydrogenase, 

 inactivation by irradiation in 

 vivo and in vitro, 107 



Triplet-singlet emission 



quantum efficiency, 98, 99 



Triplet state 



energy in electronic excitation, 



89 



formation, 95 



in water molecule, 95 



quantum yield of lowest state, 



