Philosophical MagazineTaylor & Francis, 1913 - Physics |
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Page 353
... alpha - ray product pro- duces per second the same number of alpha rays as does the equilibrium quantity of ThX . We therefore constructed a range apparatus of the type described by Geiger and Nuttall , using instead of a quadrant ...
... alpha - ray product pro- duces per second the same number of alpha rays as does the equilibrium quantity of ThX . We therefore constructed a range apparatus of the type described by Geiger and Nuttall , using instead of a quadrant ...
Page 357
... alpha particles is not directly proportional to the respective ranges , as ... rays per second . In such a case the relative activities of various products ... alpha - ray Activity . Th 2.58 0.79 0.79 11.4 Rt 3.67 1.00 1.00 1:00 ...
... alpha particles is not directly proportional to the respective ranges , as ... rays per second . In such a case the relative activities of various products ... alpha - ray Activity . Th 2.58 0.79 0.79 11.4 Rt 3.67 1.00 1.00 1:00 ...
Page 646
... alpha rays required to produce notable staining of the Carlow mica were carried out in the Physical Laboratory of ... alpha - ray tube , containing 25 millicuries of radium emanation to start with , was fixed . The whole was placed ...
... alpha rays required to produce notable staining of the Carlow mica were carried out in the Physical Laboratory of ... alpha - ray tube , containing 25 millicuries of radium emanation to start with , was fixed . The whole was placed ...
Contents
SIXTH SERIES | 1 |
Dr N Bohr on the Theory of the Decrease of Velocity | 10 |
Dr S A Shorter on the Application of the Theory | 31 |
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absorbed absorption acid activity alpha rays aluminium ampere angle apparatus approximately atomic weight beam brass cadmium iodide calculated carbon cathode rays cent centimetre charge circuit coefficient collisions constant contact potential corpuscles corpuscular radiation curve deflexion deposit determined diffusion discharge electric electrometer electrons electroscope emanation emission emitted energy equation equilibrium experimental experiments film foil formula frequency galvanometer gases given gives glass heating effect hydrogen increase ionization ionization-chamber ions iridium J. J. Thomson layers magnetic maximum measured mercury metal method mgrms molecules negative nitrogen nuclei observed obtained oxide oxygen paper particles Phil phosphorus Phys Planck unit plate platinum positive pressure Proc produced proportional quantity radium ratio scattering shown solution spectrum sublimate substance surface Table temperature theory thickness thorium tube uranium V₁ vapour velocity vibrations volts wave-length waves wire X-rays zero