ScienceJohn Michels (Journalist) 1950 |
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Стр. 58
... beta tracks are sharp . These emulsions are now designated as NTB2 . It is this feature that makes possible the registration of C " beta particles with a maximum energy of 0.165 Mev with- out registering much random ionization . The ...
... beta tracks are sharp . These emulsions are now designated as NTB2 . It is this feature that makes possible the registration of C " beta particles with a maximum energy of 0.165 Mev with- out registering much random ionization . The ...
Стр. 59
... beta particle track in the emul- sion . The photomicrograph of the tissue was taken at a focal plane just above the ... particles from the injected C , and not by background ionizing particles , counts of the number of tracks per field ...
... beta particle track in the emul- sion . The photomicrograph of the tissue was taken at a focal plane just above the ... particles from the injected C , and not by background ionizing particles , counts of the number of tracks per field ...
Стр. 295
... particles through a thin gold foil and observed the distribution in direction of the emerging particles . Although ... beta particles of radioactive substances whose energies are a few million electron volts . As nuclear experi- ments ...
... particles through a thin gold foil and observed the distribution in direction of the emerging particles . Although ... beta particles of radioactive substances whose energies are a few million electron volts . As nuclear experi- ments ...
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AAAS absorption activity albumin Amer American animals applied Association atherosclerosis atomic awarded Beer-Lambert laws beta particles bevatron biol biological blood cells chairman Chem chemical chemistry Chicago cholesterol cloud chamber College Committee compounds concentration curves cytoplasm Department director effect electron emulsion energy enzyme experimental experiments fellowships field genes genetics growth Health indicate injected Institute internal wave investigation Laboratory Lambert's law larvae layer material measurements Medical Medicine meeting ment mesons metabolism method mice molecular molecules National nuclear nuclei nucleic acid observed obtained organic paper particles penicillin phosphorus Phys physical plants plates present president problems produced professor protein prothrombin protons radiation rats reaction recent reported rhodopsin sample School Science scientific scientists serum session Society soil solution specific temperature theory tion tissue Univer University values versity vitamin volume Washington WNCD York York City