SUBJECT INDEX 



477 



Pocket fhamber, 438 



Pocket meter, 438 



Pollen labeling, 152 



Polonium aggregates in blood, 341 



Polycythemia, 438 



Positron, 438 



Potassium, cellular permeability to, 8 



radioaetivation analysis, 421-422 



summarj', 283-285 



turnover in plasma and eells, 29-31, 284 

 Potassium exchange in barley roots, 8 

 Potassium exchange reactions in plants, 



75 



Potassium (K*), summary, 283-285 

 Potassium (K^«), naturally occurring, 



280, 283 

 Potassium (K^^), in double labclmg, 45, 



191 



in vivo counting of, in plants, 195 



in vivo usage of, 5 



as red-cell label, 1 1 



summary, 283-285, 449 



translocation in plants, 6 

 Poultry, laboratory handling, 128 



management requirements, 129 



sulfur-35 studies, 307-308 

 Praseodymium (Pr*) summary, 286, 449 

 Precursors, criteria, 38 



general relationships, 37-39 

 Price list, unofficial, of radioisotopes, 



446-451 

 Probe counters, 195 

 Procedures for ion exchange, 393-394 

 Promethium (Pm*) summary, 287, 449 

 Properties (see individual isotopes) 

 Proportional counter, 438 

 Proportional counter tube, 438 

 Proportional region, 439 

 Protein-bound calcium determined with 



Ca«, 9 

 Proteins, double-labeled, 45 

 Proton, 439 

 Publications identification code of 



U.S.A. E.G. reports, 444-445 

 Pulse-height discriminator, advantages 

 for scintillation counting, 193 

 definition, 439 

 Purity of isotopes, test, 64 



{See also Radioactive impurities) 

 Pyrogens in tracer studies, 59 



Quality, 439 



Quantitative autoradiography, 353-355 



Quenching, 439 



Rabbits, administration of isotopes, 

 140-145, 147 



Rabbits, Ca" deposition in bones, 24-25 

 collection of blood, 148 

 management requirements, 129 

 metabolism cages, 132 

 removal rates of Ca from plasma, 36 

 Racemates, isotope dihition, 18 

 Rad, unit of radiation dose, 88 

 Radiation, absorption equation, 86 

 characteristic, 429 

 characteristics, summary, 87 

 chemistry, 439 



counter tube (see Counter tube) 

 decomposition of CiMabeled com- 

 pounds, 71 

 definition, 439 



dose, commonly encountered, 88-89 

 definition, 431 

 permissible, 89, 438 

 threshold, 442 

 tissue, 442 

 tolerance, 442 

 units, 87-89 

 effects, on biological material, 90 



in tracer studies, 66-71 

 energy units, 84 

 exposures, typical, 91 

 hazards, external, 89-96 



internal, 96-99 

 intensity, 434 

 ionizing, 435 

 monochromatic, 437 

 monoenergetic, 437 

 protection, instruments, 105-107 



laboratory rules, 108-111 

 secondary, 441 

 stray, 441 

 Radio-, 439 



Radioaetivation analysis, advantages, 

 413-414 

 for arsenic, 420-421 

 autoradiography in, 425 

 for cobalt, 423 

 cross-sections, 417-418 

 definition, 427 

 elements, suitable, 417-418 

 equation, 414 

 for gold, 422-423 

 inorganic applications, 425 

 of nerve fibers, 421-422 

 for potassium, 421-422 

 procedures, 419-420 

 radioisotopes prodiiced in, 417-418 

 for rare earths in bone, 424 

 sensitivity, 415-418 

 for sodium, 421-422 

 sources, 410-419 

 for strontium, 423-424 



