134 



INDEX 



Absorption coefficient 

 gamma and X rays, 3 

 narrow beam gamma rays, 18 

 photoelectric effect, 19 



Absorption spectra 



ions in electrolytic solution, 30 



Acetone 



bond rupture by electronic ex- 

 citation, 79 



Adenine 



ratio to thymine in DNA, 120 



Alanine 



ionization and fate of elec- 

 tron, 41 



decarboxylation resulting from 

 ionization in dry state, 42 



Alpha radiation 



Bragg curve in air, 5 

 efficiency of scintillating 

 counter, 88 



energy yields of light induced 

 in anthracene crystals, 8 3 

 formation of radicals in wa- 

 ter, 63 



HtO^ formation in ice affected 

 by temperature, 43 

 induction of soft X rays in wa- 

 ter, 17 



ionization in gases, 4 

 RBE for haploid yeast, 20, 21 

 track compared with electrons 

 in scintillation counter, 14 



Ammonia 



capture of slow electrons, 31 

 decomposition by X rays, 7 1 

 effects irradiation, 33 



Aniline 



electronic excitation, 79 

 bond rupture, 79 



Apoenzyme 



inactivation by irradiation, 113 



Atomic oscillation 



induced in H^O by slow elec- 

 trons, 2 3 



rays influenced by tempera- 

 tures, 46 



photore activation compared with 

 bleaching of photographic latent 

 image, 122 



Beta radiation 



formation of radicals in water, 



63 



estimation of electron volts for 



primary ionization, 48 



Bethe formula 



determination of energy distri- 

 bution of secondary electrons, 

 48 



Bimolecular processes 



importance to radiobiology, 81 



Biological materials, 



frictional affects of supersonic 

 radiations, 87 



mechanism of interaction with 

 ionizing radiation, 104 

 mechanism of photoreactiva- 

 tion, 120 



Birks 1 theory of light conversion 

 efficiency of scintillation 

 counter, 117 



Blunck-Leisegang correction 

 determination of small energy 

 losses, 49 



Bohr magneton, 115 



Boltzmann factor, 39 



Bond rupture 



in acetone by electronic excita- 

 tion, 7 9 



in aniline by electronic excita- 

 tion, 7 9 



Born approximation, 3, 6 



Bovine serum 



Rothen technique to detect ef- 

 fect of 1 ev, 7 



Bragg curve 



measurement of ionization, 5, 

 12 



Bragg rule, 3, 12 



Bacterial spores 



effects of low voltage elec- 

 trons, 2 



Bacteriophage 



inactivation of dry form by X 



Carbon 



RBE in haploid yeast, 20 

 reaction of fast nuclei on photo- 

 graphic emulsions, 14 



Catalase 



