SUBJECT INDEX 



1239 



Effective areas, 128 

 Effective volume, 128, 130, 137 

 Electric relaxation, 69 

 Electrocardiograph, 981 

 Electrolytes, metabolism, 969 

 Electromagnetic radiation (see Radia- 

 tion) 

 Electron attachment to neutral mole- 

 cules, 240-241 

 Electron tracks, 90 

 Electron-transfer processes, 232, 237, 



242-243 

 Electron volt, 8 



Electronic equilibrium (X rays), 111 

 Electrons, atomic weight, 6 

 average deflection, 92 

 backscattering, 91 

 capture, 69 

 charge of, 6 



energy dissipation at various depths, 93 

 energy distribution, 90 

 excitation of atomic, 30 

 negative, 6 

 penetration, 90, 99 

 penetration data, 100 

 positive (see Positrons) 

 primary, 57 

 recoil, 38 

 secondary, 21, 57, 69, 138 



energy dissipation by, 68 

 sources of, 10 

 Electrophoretic mobility, change in, 328 

 Electrophoretic pattern of plasma, 973 

 Electrostatic accelerator, 11 

 Elementary processes, 26, 45 

 chains of, 62 

 free atomic particles, 44 

 in mercury vapor, 199, 200, 202, 206- 

 208, 215 

 Embryo, human, effects of radiation on, 

 908-911, 913 

 mammalian, 861 



irradiated during period of major 

 organogenesis, 862, 868-893, 909- 

 910, 912 

 irradiated in preimplantation stages, 



862, 864-868, 911-912 

 irradiation, of individual, 864, 901 

 of selected parts of, 864, 877, 889- 

 890, 911 

 mechanism of radiation effect on, 

 900-908, 913 

 role of maternal body in, 861, 

 900-901, 911, 912 

 ra iation effects, 925 

 rat iosensitivity, 932 



hypoxia and, 904-906, 913 



Embryo mash, effect on radiation injury, 



1074 

 Embryology, mammalian experimental, 



radiation effects and, 861-862, 911 

 Embryonic precursor, radiation effect on, 



902-904, 906, 908, 913 

 Emitters, internal (see specific elements) 

 Endocrine imbalance and carcinogenesis, 



1167, 1170 

 Endocrine organs, carcinogenesis in, 

 1167-1172 



radiation effects, 989-994 

 Endosteal growth and bone, 1108 

 Endothelium, damage to, 978 

 Endotoxins, bacterial, 1003 

 Energy, activation, 210, 215-216 



average, per ion pair, 65, 66, 158, 165, 

 166, 237, 241, 251 



binding, 28, 60 



of chemical bond, 28, 31, 60 



migration of, 202, 233-234, 246n., 

 248n., 249 

 Energy absorption, linear, 316 



and neutron flux, 163 



per roentgen, 150 



in tissues, ultraviolet radiations, 764 

 Energy dissipation, average, in collisions, 

 55 



by elastic collisions, 67 



by electrons at various depths, 93 



by inelastic collisions, 51 



rate of, 87 



by secondary electrons, 68 

 Energy distribution, electrons, 90 

 Energy flux per roentgen, 159 

 Energy loss, rate of, 316 

 Energy scales, 9 

 Energy transfer, linear, 316 

 Enterase, 987 



Enterogenous infection, 982-983, 1002 

 Entropy, 291 

 Environment of cells and radiosensitivity, 



1135 

 Enzyme systems, 297 

 Enzymes, 937, 941 



amino groups, 297 



double bonds, 297 



flavone, 562 



and genes, 354, 462 



hydroxyl groups, 297 



inactivation of, 324, 329 



prosthetic group, 297 



sulfhydryl, 937 



sulfhydryl groups, 297 

 Eosin, 541 



Eosinophils, effect of irradiation on, 1063 

 Epidermis, 1097, 1119 



cellular polymorphism, 1121 



