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14 MeV Neutrons
book

14 MeV Neutrons

by Vladivoj Valkovic
August 2015
Intermediate to advanced content levelIntermediate to advanced
516 pages
16h 29m
English
CRC Press
Content preview from 14 MeV Neutrons
35
Chapter 3
Sources of 14 MeV Neutrons
3.1 INTRODUCTION
In 1920, Rutherford postulated that there were neutral, massive particles in the
nucleus of atoms. James Chadwick, a colleague of Rutherford, discovered the
neutron in 1932. He bombarded a beryllium target with alpha particles produc-
ing neutrons that recoiled into a block of paran. Chadwick’s apparatus, the
rst neutron generator (NG), is schematically described in Figure 3.1.
By measuring protons emerging from the paran with a Geiger counter,
Chadwick inferred that the neutron had a mass comparable to that of the pro-
ton. Soon Enrico Fermi recognized that neutrons could be used to produce ...
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Publisher Resources

ISBN: 9781482238013