Radio-activity / by E. Rutherford.

  • Ernest Rutherford
Date:
1904
Catalogue details

Licence: Public Domain Mark

Credit: Radio-activity / by E. Rutherford. Source: Wellcome Collection.

    401/426 page 383
    INDEX. The numbers refer to the pages. a ravs discovery of, 115 et seq. nature of, 115 et seq. magnetic deviation of, 117 et seq. electrostatic deviation of, 121 velocity of, 122 et seq. value of ejm for, 122 mass and energy of, 125 et seq. origin of, in atomic disintegration, 126 scintillations produced by, 127 absorption of, by matter, 129 et seq. increase of absorption with thickness of matter traversed, 129 et seq. relative absorption of a rays from radio-elements, 132 absorption of, by gases, 133 connection between absorption and density, 137 relation between ionization and ab¬ sorption, 138 theory of absorption of, 138 effect of thickness of layer of radiating matter on emission of, 149 relative ionization produced by a and /3 rays, 149 relative energy emitted in form of a and /3 rays, 150 et seq. number and energy of a particles from radio-elements, 154 emission of energy from radio-ele¬ ments in form of a rays, 154 connection of heat emission of radium with a rays, 160 et seq. connection of, with radio-active changes, 193, 322 from the emanations, 222 absence of, in change in emanation X of thorium, 270 et seq. absence of, in change in emanation X of radium, 273 non-separable activity of radio-ele¬ ments consists of, 304 emission from all active products except last change, 304 a particles consist of helium, 331 loss of weight due to expulsion of, 335 Abraham apparent mass of moving charged body, 109 Absorption law of, in gases, 56 et seq. relative absorption of a, (3 and y rays by matter, 93 of jii rays by solids, 112 et seq. of a rays by solids, 129 et seq. of 7 rays by solids, 142 connection between absorption and density for (3 rays, 113 et seq. connection between absorption and density for a rays, 137 connection between absorption and density for y rays, 143 of (3 rays in radio-active matter, 115 of a rays in gases, 133 et seq. connection between absorption and ionization, 138 theory of, 138 of a rays by radium, 164 of rays from the emanations, 222 of penetrating rays from the earth, 367 Actinium methods of separation of, 22 et seq. properties of, 23 similarity to “ emanating substance ” of Giesel, 24 possible connection with radio-activity of thorium, 25 emanation from, 208 excited activity produced by, 288 effect of magnetic field on excited activity from, 288 Adams decay of activity of emanation from well water, 361 decay of excited activity from the emanation, 361 Age of radium, 333 of sun and earth, 343 Allan increase with time of excited activity from atmosphere, 355
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