Radioisotope Techniques

absorber absorption curve acid alpha aluminum amount Anal Analysis Apparatus and Materials apparent activity applied assay atomic number background beta emitters beta particles beta radiation beta-ray calculated calibration carbon cent Chem chemical components compounds concentration contamination counting rate Counts per minute crystal decay decontamination detection detector determined disintegration rate effect electron emitted experiment exposure Expt factors film filter fraction gamma radiation gamma-ray Geiger counter given half-life instrument ionization chamber ions isotope labeled laboratory maximum measurements method mg/cm² mixture Nuclear Nucleonics nuclide obtained organic paper particles photomultiplier photons Phys pipette planchet plot precipitate prepared problems procedure proportional counter pulse pulse-height RaD-E-F radioactive material radioisotopes radionuclide range ratio rays resin sample Scintillation Counter self-absorption separation solid solution solvent specific activity standard substance techniques thickness tion tracer Tritium U.S. Atomic Energy usually voltage York