292 



Index 



Tests on radiation workers, 278 

 Textiles, transmission of radiation 



by. 71 

 Therapeutic aims and methods in 



radium therapy, 237 

 Therapy, million-volt, 241 

 — , neutron, 134 

 Thermocouple, vacuum, 68 

 Thermoradiometer, 66, 67 

 Thermostromuhr apparatus, 51 

 Thimble chamber, 182 



— chamber dosemeter. 183 



— chamber, theory of. 185 

 Thomson scattering. 177 



Tissue and tumor tissue, effects of 

 different radiations on em- 

 bryonic animal. 132 



— .cell division and cell differentia- 

 tion in normal. 104-106 



— , radiation effects on normal, 103 



Tolerance dose and volume dose, 

 208 



— doses for ionizing radiations, 267 

 — . integral dose and. 269 



Total body dose of radiation. 217 



— energy absorption in radio- 



therapy. 194 



Transmission of radiation by tex- 

 tiles, 71 



True energy absorption and the 

 theory of the thimble cham- 

 ber, 185 



Tumor destruction by radiation, 

 107, 108 



— tissue, effects of different radia- 



tions on animal embryonic and, 



132 

 — -tissue, radiosensitivity of, 172 

 Tumors, cell categories found in 



ephithelial, 165 

 — . cellular population of. 164 

 — , radiosensitivity of, 162, 163 

 Turbidimetric determinations. 53 



u 



Unger's economy quotient, 206 

 Ultraviolet radiations, genetic ef- 

 fects of, 153 



Unit energy of radiation, Einstein's 

 equation, 177 



— of X-ray dose, rontgen. 180 

 Unmodified scattering, 177 

 Uptake of drugs by insects, 21 



— of ethyl alcohol by blowfly 



larvae, 22 

 Uterine hemorrhage, treatment with 

 radium, 239 



Vaccina virus, inactivation of, 159 



Vacuum thermocouple, 68 



Value of the conception of volume 



dose in radiotherapy, 202 

 Values of integral dose. 205, 206 

 Variation of radiation density 



through the body, 259 

 Viable cells. 164 

 Viruses and bacteria, action of 



radiations on, 155 

 — , inactivation of, 156 

 — , macromolecular. 157 

 — .organism-type. 159 

 — , relative efficiency of ionizing 



radiations for the inactivation 



of, 124 

 \'olume dose and biological effects, 



210 



— dose and blood counts, 212 



— dose and field area. 203 



— dose and technique. 209 



— dose and tolerance dose. 208 



— dose, effect of physical factors 



on, 202 

 — dose in radiotherapy, value of 

 the conception of. 202 



— dose limiting radiation technique, 



211 



— dose, mathematical theory of, 



196 



— dose of radiation, measurement 



of. 199 



— dose per rontgen at skin surface 



and thickness of tissue through 

 which the beam passes, 195 



— dose to field area for irradiation 



of the pelvis, relation of, 201 



