초록 ▼

A neutron radiation detector is described. A semiconductor material is populated with helium three (.sup.3 He) atoms to increase its overall neutron capture efficiency. Upon capture of a neutron by a .sup.3 He atom, a tritium ion and a proton are generated with energies of 0.191 and 0.573 MeV, respe

A neutron radiation detector is described. A semiconductor material is populated with helium three (.sup.3 He) atoms to increase its overall neutron capture efficiency. Upon capture of a neutron by a .sup.3 He atom, a tritium ion and a proton are generated with energies of 0.191 and 0.573 MeV, respectively. These energies are deposited in the semiconductor material creating electron-hole pairs. The electron-hole pairs are withdrawn from the material by the application of an electric field and are collected as charges at the terminals. The associated circuitry processes the charges into pulses with these being counted and their sizes measured. The results are recorded and displayed. The number of pulses are a measure of the number of neutrons absorbed in the detector and of the neutron flux of interest. In many instances the detector can also be used to detect and display non-neutron type radiation or simultaneously neutron and non-neutron forms of radiative activity.

대표청구항 ▼

[ The claims of the invention are:] [1.] A neutron radiation detector based on semiconductor material populated with .sup.3 He in such away that:the semiconductor material is uniformly populated with .sup.3 He throughout its body in order to make neutron detection possible with efficiencies of up to

[ The claims of the invention are:] [1.] A neutron radiation detector based on semiconductor material populated with .sup.3 He in such away that:the semiconductor material is uniformly populated with .sup.3 He throughout its body in order to make neutron detection possible with efficiencies of up to 100% orthe semiconductor material is populated with .sup.3 He throughout a substantial portion of its body in order to make neutron detection possible with efficiencies of up to 100%.