Chadwick's neutron detector

Made:
1932
maker:
Science Museum

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Chadwick's neutron chamber (replica) used in his experiment to discover the neutron.

This detector was used by James Chadwick (1891-1974) in his discovery of the neutron. Inside the detector, particles from a radioactive source hit a beryllium target. From the force of this impact, neutrons were given off, and could only be detected when they dislodged protons from a piece of paraffin wax. Chadwick's theories and experiments helped to rewrite existing beliefs concerning what was contained in the nucleus of an atom.

Details

Category:
Nuclear Physics
Object Number:
1974-562
Materials:
aluminium, brass, complete, sealing wax and wood
type:
replica
taxonomy:
  • derivative object
  • copy - derivative object
  • reproduction