THE MASS SPECTROSCOPY OF VERY SMALL AMOUNTS OF SUBSTANCES IN NUCLEAR PHYSICS AND ISOTOPE COSMOLOGY

摘要

They can thus be applied with especial advantage to examine the stable and long-lived radioactive products of nuclear reactions.nMass-spectroscopic detection of a substance is performed in three stages .n1, The production of an ion beam in vacuo. 2. Splitting of the ion beam according to the mass of the various particles. 3. Ion detection.nWe shall indicate below the methods available in each of the three stages to achieve the highest possible detection efficiency.