Neutron Capture and Nuclear Constitution

  title={Neutron Capture and Nuclear Constitution},
  author={Niels Henrik David Bohr},
  • N. Bohr
  • Published 1 February 1936
  • Physics
  • Nature
AMONG the properties of atomic nuclei disclosed by the fundamental researches of Lord Rutherford and his followers on artificial nuclear transmutations, one of the most striking is the extraordinary tendency of such nuclei to react with each other as soon as direct contact is established. In fact, almost any type of nuclear reactions consistent with energy conservation seems likely to occur in close nuclear collisions. In collisions between charged particles and nuclei, contact is, of course… 
Nuclear Excitation and Disintegration Collisions Involving Strong Interaction. I
The study of collisions between nuclear particles has developed to a remarkable extent with the discovery of the neutron and the introduction of artificial methods for effecting nuclear
Theory of nuclear fission
Nuclear Photo-effects
THE beautiful experiments of Bothe and Gentner1 on the ejection of neutrons from heavier nuclei by means of γ-rays with energy of about 17 M.v. resulting from impact of protons on lithium, have
Study of Nuclear Reactions at High Energies by the Recoil-Nucleus Method
An important means of studying the structure of atomic nuclei is supplied by high-energy particles. The wavelength of the particles falls with increasing energy and at energies of approximately 100
Unexpected inhibition of fusion in nucleus–nucleus collisions
Measurements of three fusion reactions with Z1Z2 around half this value find convincing model-independent evidence both of inhibition of fusion, and of the presence of quasi-fission, which defy interpretation within the standard picture of nuclear fusion and fission.
Investigation of energy dissipation and capture through fission measurements
Fusion of atomic nuclei is a process in which two nuclei overcome their mutual Coulomb repulsion (barrier) and merge together to form a single nucleus. Fusion of light nuclei, such as hydrogen and
The Discovery of Uranium Fission Its Intricate History and Far-Reaching Consequences
AbstractUranium was discovered 200 years ago. Its radioactive character was first demonstrated in 1896 and two years later radium was extracted from uranium minerals. In 1911 studies with alpha rays
Neutron beams for nuclear data measurements
Photonuclear and spallation reactions can produce a wide spectrum of neutrons with high intensity, whereas from the fusion of hydrogen isotopes e.g. D(t,n)He or transfer reactions like Li(p,n)Be


Bakerian lecture.―The neutron
1. In an earlier paper I showed that the radiations excited in certain light elements by the bombardment of α -particles consist, at least in part, of particles which have a mass about the same as
Theory of Disintegration of Nuclei by Neutrons
The large probability of nuclear disintegration by slow neutrons as well as the large cross section for the elastic scattering of slow neutrons can be explained without any new assumption.
Selective Absorption of Neutrons by Gold
Six small gold disks, 15 mm. in diameter and 0.5 mm. thick, were placed in a hole in a cadmium plate and irradiated by slow neutrons, by putting the whole arrangement in a cavity in a large block of
Excitation of Nuclei by Neutrons
THOUGH many investigations have been made both of fast neutrons and those of thermal energy, much less is known about neutrons of medium velocity. The experiments described below have been devised to
The Agricultural Dilemma:
AbstractIN the volume before us Lord Astor and Mr. B. Seebohm Rowntree present the results of an inquiry organised by them into the possibilities of increasing the agricultural population of Great
Capture of Slow Neutrons
IT is known that some nuclei have very large capture cross-sections for slow neutrons. This fact may be explained from the point of view of wave mechanics, which also leads to the consequence that
Zeeman Verhandelingen
  • Proc. Roy. Soc., A
  • 1932